Document:

Joinder Agreement and First Amendment to Credit and Security Agreement and Other

 Exhibit 10.16 

JOINDER AGREEMENT AND FIRST AMENDMENT 

TO CREDIT AND SECURITY AGREEMENT AND OTHER LOAN DOCUMENTS 

THIS JOINDER AGREEMENT AND FIRST AMENDMENT TO CREDIT AND SECURITY AGREEMENT AND OTHER LOAN DOCUMENTS (this
“Amendment”) is made and entered into as of August 12, 2010, by and between UNILENS CORP. USA, a Delaware corporation (“Existing Borrower”), UNILENS VISION SCIENCES INC., a Delaware corporation
(“New Borrower”; together with Existing Borrower, “Borrower”) and REGIONS BANK, an Alabama corporation (“Lender”). 

RECITALS 

A. Pursuant to that certain Credit and Security Agreement dated as of November 9, 2009 (as the same may be amended, supplemented,
modified and restated from time to time, collectively, the “Loan Agreement”), Lender has agreed to make a Term Loan and Revolving Loan (as defined in the Loan Agreement) to Existing Borrower. 

B. Existing Borrower has requested that Lender make the Term Loan and Revolving Loan (together, “Loans”) under the Loan
Agreement available to the New Borrower, and Lender has agreed to do so upon the terms and subject to the conditions set forth herein and in the Loan Agreement provided (among other things) that the parties hereto execute and deliver this Amendment
and otherwise comply with the agreements set forth herein and in the Loan Agreement. 
 C. In furtherance of the foregoing, the
parties hereto desire to enter into this Amendment to join the New Borrower as a party to the Loan Agreement and to amend the Loan Agreement and the other loan documents executed in connection therewith (collectively, “Loan
Documents”) in certain respects as provided herein. 
 AGREEMENTS 

NOW, THEREFORE, in consideration of the foregoing, the terms and conditions, premises and other mutual covenants set forth in this
Amendment, and other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, Lender and Borrower hereby agree as follows: 

Section 1. Definitions. Unless otherwise defined herein, all capitalized terms used and not defined herein shall have the
meanings assigned to such terms in the Loan Agreement. For purposes of this Amendment, the term “Borrower” shall mean, each individually together, Existing Borrower and New Borrower. 

Section 2. Addition and Joinder of New Borrower. Existing Borrower, New Borrower and Lender agree that, by execution and
delivery of this Amendment and satisfaction of the other conditions set forth herein, New Borrower shall constitute and be deemed a “Borrower” under and for purposes of the Loan Agreement and all other Loan Documents. Accordingly, by its
execution hereof, New Borrower hereby agrees as of the Effective Date (i) to be a party to the Loan Agreement as a “Borrower” thereunder, (ii) that it will be deemed to have made all of the representations and warranties of a
“Borrower” under the Loan Agreement and to have and be bound, jointly and severally with the Existing Borrower, by all of the conditions, obligations, appointments, covenants, representations, warranties and other agreements of a
“Borrower” under and as set forth in the Loan Agreement, the Loan Documents and this Amendment, including, without limitation, the granting of the security interest in the Collateral under the Loan Documents, and (iii) agree to
promptly execute all further documentation, 

 
amendments, supplements, schedules, agreements and/or financing statements required by Lender consistent and in connection with the Loan Agreement and this Amendment, In addition, Existing
Borrower hereby reaffirms and agrees to be bound, jointly and severally with New Borrower, by all of the conditions, obligations, appointments, covenants, representations, warranties and other agreements of a “Borrower” under and as set
forth in the Loan Agreement, Loan Documents and this Amendment, and hereby agree to promptly execute all further documentation, amendments, supplements, schedules, agreements and/or financing statements required by Lender consistent and in
connection with the Loan Agreement and this Amendment, as applicable. 
 Section 3. Grant of Security Interest by New
Borrower. 
 (a) Without limiting anything contained herein or in the Loan Agreement, and to
secure the payment and performance of the Obligations, New Borrower hereby grants to Lender a continuing security interest in and Lien upon, and pledges to Lender, all of its right, title and interest in and to the following whether now owned or
existing, hereafter acquired or arising, or in which New Borrower now or hereafter has any rights, and wheresoever located (collectively and each individually, the “Collateral”), which security interest is intended to be a first
priority security interest: 
 (i) Accounts; 

(ii) Inventory; 

(iii) General Intangibles; 

(iv) All monies, residues and property of any kind of Borrower now or at any time hereafter in the possession or under the
control of Lender or a bailee of Lender; 
 (v) All accessions to, substitutions for and all replacements,
products and proceeds of the foregoing, including, without limitation, proceeds of insurance policies insuring the aforesaid collateral and documents covering the aforesaid collateral, all property received wholly or partly in trade or exchange for
such collateral, and all rents, revenues, issues, profits and proceeds arising from the sale, lease, license, encumbrance, collection or any other temporary or permanent disposition of such items or any interest therein whether or not they
constitute “proceeds” as defined in the Uniform Commercial Code; and 
 (vi) All books, records,
documents and ledger receipts of Borrower pertaining to any of the foregoing, including, without limitation, customer lists, credit files, computer records, computer programs, storage media and computer software used or acquired in connection with
generating, processing and storing such books and records or otherwise used or acquired in connection with documenting information pertaining to the aforesaid collateral. 

(b) Upon the execution and delivery of this Amendment, and upon the proper filing of the necessary financing statements,
without any further action, Lender will have a good, valid and perfected first priority Lien and security interest in the Collateral to the extent the same may be obtained by UCC filings, subject to no transfer or other restrictions or Liens of any
kind in favor of any other Person. No financing statement relating to any of the Collateral is on file in any public office except those (i) on behalf of Lender. 

 Section 4. Representations and Warranties.  

(a) Notwithstanding any other provision of this Amendment, each of Existing Borrower and the New Borrower hereby
(a) confirms and makes all of the representations and warranties set forth in the Loan Agreement and other Loan Documents with respect to such Existing Borrower or New Borrower, as the case may be, and confirms that they are true and correct in
all material respects, (b) represents and warrants that they are Affiliates of each other, and (c) specifically represents and warrants to Lender that it has good and marketable title to all of its respective Collateral (if any), free and
clear of any Lien or security interest in favor of any other Person. 
 (b) Each of Existing Borrower and the New
Borrower hereby represents and warrants as of the date of this Amendment as follows: (i) it is duly incorporated or organized, validly existing and in good standing under the laws of its jurisdiction of organization; (ii) the execution,
delivery and performance by it of this Amendment are within its powers, have been duly authorized, and do not contravene (A) its articles of incorporation, bylaws, or other organizational documents, or (B) any applicable law; (iii) no
consent, license, permit, approval or authorization of, or registration, filing or declaration with any Governmental Authority or other Person (except for those that have already been obtained), is required in connection with the execution,
delivery, performance, validity or enforceability of this Amendment, by or against it; (iv) this Amendment has been duly executed and delivered by it; (v) this Amendment constitutes its legal, valid and binding obligations enforceable
against it in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the enforcement of creditors’ rights generally or by general principles
of equity; and (vi) it is not in default under the Loan Agreement and no Event of Default exists, has occurred or is continuing. 

Section 5. Reference to the Effect. Upon the effectiveness of this Amendment, each reference in the Loan Agreement to
“this Agreement,” “hereunder,” “hereof,” “herein” or words of similar import shall mean and be a reference to the Loan Agreement as amended by this Amendment. Except as specifically amended hereby, the Loan
Agreement and all other Loan Documents shall remain in full force and effect and the terms thereof are expressly incorporated herein and are ratified and confirmed in all respects. This Amendment is not intended to be or to create, nor shall it be
construed as or constitute, a novation or an accord and satisfaction but shall constitute an amendment of the Loan Agreement and the other Loan Documents. The parties hereto agree to be bound by the terms and conditions of the Loan Agreement and the
other Loan Documents as amended by this Amendment as though such terms and conditions were set forth herein in full. The execution, delivery and effectiveness of this Amendment shall not, except as expressly provided in this Amendment, operate as a
waiver of any right, power or remedy of Lender, nor constitute a waiver of any provision of the Loan Agreement or any other Loan Document or any other documents, instruments and agreements executed or delivered in connection therewith or of any
default or Event of Default under any of the foregoing whether arising before or after the date hereof or as a result of performance hereunder. 

Section 6. Governing Law and Jury Trial. THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES UNDER THIS
AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE CHOICE OF LAW PROVISIONS SET FORTH IN THE LOAN AGREEMENT AND SHALL BE SUBJECT TO THE WAIVER OF JURY TRIAL PROVISION OF THE LOAN AGREEMENT. 

Section 7. Headings and Counterparts. The captions in this Amendment are intended for convenience and reference only and do
not constitute and shall not be interpreted as part of this Amendment and shall not affect the meaning or interpretation of this Amendment. This Amendment may be executed in one or more counterparts, all of which taken together shall constitute but
one and the same 

 
instrument. This Amendment may be executed by facsimile transmission, which facsimile signatures shall be considered original executed counterparts for all purposes, and each party to this
Amendment agrees that it will be bound by its own facsimile signature and that it accepts the facsimile signature of each other party to this Amendment. 

Section 8. Amendments. This Amendment may not be changed, modified, amended, restated, waived, supplemented, discharged,
canceled or terminated orally or by any course of dealing or in any other manner other than by the written agreement of Lender and Borrower. This Amendment shall be considered part of the Loan Agreement and the other Loan Documents for all purposes.

 Section 9. Entire Agreement. This Amendment, the Loan Agreement, and the other Loan Documents constitute the
entire agreement between the parties with respect to the subject matter hereof and thereof and supersedes all prior agreements and understandings, if any, relating to the subject matter hereof and thereof and may not be contradicted by evidence of
prior, contemporaneous or subsequent oral agreements between the parties. There are no unwritten oral agreements between the parties. 

Section 10. Miscellaneous. Whenever the context and construction so require, all words used in the singular number herein
shall be deemed to have been used in the plural, and vice versa, and the masculine gender shall include the feminine and neuter and the neuter shall include the masculine and feminine. This Amendment shall inure to the benefit of Lender, all future
holders of any note, any of the Obligations or any of the Collateral and all of Lender’s transferees, and each of their respective successors and permitted assigns. Neither Existing Borrower nor any of the New Borrower may assign, delegate or
transfer this Amendment or any of its rights or obligations under this Amendment without the prior written consent of Lender. No rights are intended to be created under this Amendment for the benefit of any third party donee, creditor or incidental
beneficiary of Borrower or any guarantor. Nothing contained in this Amendment shall be construed as a delegation to Lender of any Borrower’s duty of performance, including, without limitation, any duties under any account or contract in which
Lender has a security interest or Lien. This Amendment shall be binding upon Borrower and their respective successors and assigns. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

 IN WITNESS WHEREOF, the parties have caused this Joinder Agreement and First
Amendment to Credit and Security Agreement and Other Loan Documents to be executed by their respective officers thereunto duly authorized as of the date first written above. 

 

											
	  	 	LENDER:	 	  	 	REGIONS BANK, an Alabama banking corporation
		 		 	 	  
 By:
	 	 
		 		 	 		 	Name:	 	 
		 		 	 		 	Title:	 	 
				
		 	EXISTING BORROWER:	 		 	UNILENS CORP. USA, a Delaware corporation
	 		 	 	  
 By:
	 	/s/ Michael J. Pecora
	 		 	 		 	Michael J. Pecora
	 		 	 		 	President
				
		 	NEW BORROWER:	 		 	UNILENS VISION SCIENCES INC., a Delaware corporation
	 		 	 	  
 By:
	 	/s/ Joan L. Yori
	 		 	 		 	Joan L. Yori
	 		 	 		 	Vice President

 AMENDED AND RESTATED TERM NOTE 

$5,400,000.00 
 August 12, 2010

 FOR VALUE RECEIVED, the undersigned, UNILENS CORP. USA, a Delaware corporation and UNILENS VISION SCIENCES
INC., a Delaware corporation (jointly and severally, “Maker”), promise to pay to the order of REGIONS BANK, an Alabama banking corporation (“Lender”), in lawful money of the United States of America, in
immediately available funds, at the principal office of Lender at 100 North Tampa Street, Suite 3100, Tampa, Florida 33602, or at such other location as the Lender may designate from time to time, the principal sum of Five Million Four Hundred
Thousand and No/100 Dollars ($5,400,000.00) or so much thereof which may be advanced by Lender in accordance with the terms of the Credit and Security Agreement dated as of November 9, 2009, as modified by that certain Joinder Agreement and
First Amendment to Credit and Security Agreement dated as of the date hereof between Lender and Maker (as amended, “Loan Agreement”), together with interest thereon, as described below. Capitalized terms used herein and not
otherwise defined shall have the meaning assigned to them in the Loan Agreement. 
 This Note shall bear interest on the daily
outstanding balance of principal at a variable rate per annum, calculated on a 365/360 basis, equal to (i) the LIBOR Rate plus three and one quarter percent (3.25%) if the Funded Debt to EBITDA ratio is less than 1:00 to 1:00, or
(ii) the LIBOR Rate plus three and three quarters percent (3.75%) if the Funded Debt to EBITDA ratio is equal to or greater than 1:00 to 1:00, such LIBOR Rate to change automatically from time to time, but not more often than once per
month. Notwithstanding the foregoing, in no event shall the interest rate thereunder be less than four and three quarters percent (4.75%) per annum; provided, however, such foregoing minimum rate shall not be applicable during any time that
Swap Documents (as hereinafter defined) are in effect. Any necessary change to the interest rate spread shall occur within thirty (30) days after Lender’s receipt of Maker’s required financial reporting requirements. 

The principal and interest under this Note shall be payable as follows: 

(i) a principal payment in the amount of One Hundred Thousand and No/100 Dollars ($100,000.00) plus all accrued and
unpaid interest shall be due and payable beginning on August 19, 2010 and continuing on the nineteenth (19th
) of each calendar month thereafter (each a “Payment Date”); and 

(ii) The entire outstanding unpaid principal balance of this Note, together with accrued and unpaid interest and any other amounts due
under this Note, the Loan Agreement and the other Loan Documents shall be due and payable on January 19, 2015 (“Maturity Date”). 

Interest on the indebtedness evidenced by this Note shall accrue and be calculated on a 365/360 basis; that is by applying the ratio of
the interest rate over a year of 360 days, multiplied by the outstanding principal balance, multiplied by the actual number of days the principal balance is outstanding. 

 For purposes of this Note, the following terms shall have the following meanings:

 “Interest Period” means, with respect to the initial Interest Period hereunder, the period commencing on the
date funds are advanced on the Original Note (as hereinafter defined) and, with respect to any subsequent Interest Period hereunder, the period commencing on the last day of the immediately preceding Interest Period, and in any case ending on the
day numerically corresponding to the date funds are advanced on this Note in the first month thereafter; provided that any Interest Period which begins on a day of a calendar month for which there is no numerically corresponding day in the
appropriate subsequent calendar month shall end on the last day of the appropriate subsequent calendar month. 
 “LIBOR
Business Day” shall mean a day on which the office of Lender at which payments on the Loan are to be made is open for business and on which dealings in U.S. dollar deposits are carried out in the London Interbank market. 

“LIBOR Rate” shall mean, with respect to any Interest Period, the rate for deposits in U.S. dollars for a period
comparable to the terms of such Interest Period which appears on Reuters Screen LIBOR01 Page as of 11:00 a.m., London, England time on the day (the “Pricing Date”) that is two LIBOR Business Days preceding the first day of such
Interest Period, as such rate is published on the Business Day next following the Pricing Date in the Money Market Section of The Wall Street Journal. If such rate cannot be so determined for any reason, Lender will request the principal London
office of at least two banks to provide a quotation of its rate for deposits in U.S. dollars for a period comparable to the applicable quotations. 

This Note is the Term Note referred to in, and issued pursuant to, the Loan Agreement, the terms of which are incorporated herein by
reference. The Loan Agreement contains provisions for, among other things, the acceleration of the stated maturity of this Note upon the happening of certain stated events set forth therein. 

Maker does hereby authorize and instruct Lender to debit and draft maker’s checking account maintained with Lender bearing account
number 0123277386 (and/or any other accounts maintained with Lender) for all payments and amounts due to Lender monthly hereunder, as the monthly payments hereunder may vary from month to month. 

The principal amount of this Note may be prepaid in whole or in part at any time without penalty. Early payments will not, unless agreed
to by Lender in writing, relieve Maker of Maker’s obligation to make payments under the payment schedule. 
 In the event
this Note is not paid in full on the Maturity Date, the amount due hereunder shall bear interest at a rate per annum equal to the interest rate calculated pursuant to the second paragraph hereof, plus an additional plus two percent (2.00%), such
interest rate to change automatically from time to time, payable on demand. The aforesaid interest rate shall continue to apply whether or not judgment shall be entered on this Note. 

If any payment of principal or interest on this Note shall become due on a Saturday, Sunday or on any other day on which Lender’s
offices in Birmingham, Alabama or such other office designated by Lender, are not open for business, such payment shall be made on the preceding Business Day. 

 If any payment is 15 or more days late, Maker will be charged a late fee equal to five
percent (5.00%) of the unpaid portion of such payment. 
 In no contingency or event whatsoever shall the interest rate
charged hereunder exceed the highest rate permissible under applicable state and federal law. In the event Lender has received interest hereunder in excess of the highest allowed rate, Lender shall promptly refund such excess to Maker. 

All payments received by Lender hereunder shall be applied first to unpaid interest, second to the principal balance hereof and third to
other charges payable by Maker. 
 The Term Loan made by Lender to Maker pursuant to the Loan Agreement and all payments and
prepayments on account of the principal and interest thereof shall be recorded by Lender on the Term Loan Account which account statements, absent manifest error, shall be conclusive and binding on Maker; provided, however, that the failure of
Lender to make any such recordation shall not limit or otherwise affect the obligation of Maker hereunder. 
 If Maker fails to
pay any portion of the amounts due hereunder when due and payable or if Maker fails to perform, keep or observe any other term, provision, condition, covenant, warranty or representation contained herein, in the Loan Agreement, in the Revolving
Credit Note, in the Swap Documents or in any of the Other Agreements, it shall be an Event of Default hereunder. 
 Maker hereby
waives presentment, demand, protest and notice of any kind in connection with this Note. 
 This Note shall bind Maker and its
successors and assigns, and the benefits hereof shall inure to the benefit of Lender and its successors and assigns. All references herein to the “Maker” and “Lender” shall be deemed to apply to Maker and Lender, respectively,
and their respective successors and assigns. 
 Maker covenants and agrees that it will maintain in full force and effect that
certain ISDA Master Agreement between Maker and Lender, or its affiliate, and all swap documents, and related agreements, together with any related schedules and confirmations entered into now or in the future (being collectively referred to as the
“Swap Documents”), and promptly pay and perform all of its obligations under the Swap Documents. The payment of the Note, and the payment and performance of Maker’s obligations under the Swap Documents are hereby secured by the
Loan Agreement and other related security instruments and all Swap Documents are deemed to be part of the Loan Documents. A default under any of the Swap Documents shall be a default under the Note, the Loan Agreement, and all security instruments
related thereto. Notwithstanding any language contained in such documents, Maker shall not prepay the Note, or any indebtedness without simultaneously paying all sums due under the Swap Documents attributable or arising from such prepayment.

 To the extent permitted by applicable law, Maker hereby grants to Lender and Lender reserves a right of setoff in all
Maker’s accounts with Lender (whether checking, savings, or some other account). This includes all accounts Maker holds jointly with someone else and all accounts Maker may open in the future. However, this does not include any IRA or Keogh
accounts, or any trust accounts for which setoff would be prohibited by law. Maker authorizes 

 
Lender, to the extent permitted by applicable law, to charge or setoff all sums owing on the Indebtedness against any and all such accounts, and, at Lender’s option, to administratively
freeze all such accounts to allow Lender to protect Lender’s charge and setoff rights provided in this paragraph. 
 Maker
hereby consents and agrees, without notice from Lender, to any extension of payment or waiver thereof with respect to this Note. 

This Note, for all purposes, shall be governed by, and construed in accordance with, the laws of the State of Florida. In the event any
provision of this Note shall be prohibited or invalid under applicable law, such provision shall be ineffective to the extent of such prohibition or invalidity without invalidating the remainder of such provision or the remaining provisions of this
Note. 
 The obligations of each person and entity comprising Maker shall be joint and several. The unenforceability or
invalidly of any provision of this Note as to any entity or circumstance shall not render that provision unenforceable or invalid as to any other entity or circumstance and all provisions hereof, in all other respects shall remain valid and
enforceable. 
 WAIVER OF JURY TRIAL. NO PARTY TO THIS NOTE OR ANY ASSIGNEE, SUCCESSOR, HEIR OR PERSONAL REPRESENTATIVE
OF A PARTY SHALL SEEK A JURY TRIAL IN ANY LAW SUIT, PROCEEDING, COUNTERCLAIM, OR ANY OTHER LITIGATION PROCEDURE BASED UPON OR ARISING OUT OF THIS NOTE, ANY RELATED AGREEMENT OR INSTRUMENT, ANY SECURITY FOR THE INDEBTEDNESS EVIDENCED HEREBY OR THE
DEALINGS OR THE RELATIONSHIP BETWEEN OR AMONG THE PARTIES, OR ANY OF THEM. NO PARTY WILL SEEK TO CONSOLIDATE ANY SUCH ACTION, IN WHICH A JURY TRIAL HAS BEEN WAIVED, WITH ANY OTHER ACTION IN WHICH A JURY TRIAL CANNOT OR HAS NOT BEEN WAIVED. THE
PROVISIONS OF THIS PARAGRAPH HAVE BEEN FULLY DISCUSSED BY THE PARTIES HERETO, AND THESE PROVISIONS SHALL BE SUBJECT TO NO EXCEPTIONS. NO PARTY HAS IN ANY WAY AGREED WITH OR REPRESENTED TO ANY OTHER PARTY THAT THE PROVISIONS OF THIS PARAGRAPH WILL
NOT BE FULLY ENFORCED IN ALL INSTANCES. 
 Maker hereby agrees that this is a renewal of that certain Term Note dated
November 9, 2009 (“Original Note”) from Unilens Corp. USA to Lender (“Obligation”) and not a refinance of said Obligation. Maker further acknowledges and agrees that the Obligation has remained and shall
continue without interruption or derogation of the security interest granted in connection therewith. 
 [REMAINDER OF PAGE
INTENTIONALLY LEFT BLANK] 

 IN WITNESS WHEREOF, Maker has executed this Note on the date first above written.

  

			
	UNILENS CORP. USA, a Delaware corporation
		
	 By:
	 	/s/ Michael J. Pecora
		 	 Michael J. Pecora

President and CEO

	
	UNILENS VISION SCIENCES INC., a Delaware corporation
		
	 By:
	 	/s/ Joan L. Yori
		 	 Joan L. Yori

		 	 Vice President

 AMENDED AND RESTATED REVOLVING CREDIT NOTE 

$1,500,000.00 
 August 12,
2010 
 FOR VALUE RECEIVED, the undersigned, UNILENS CORP. USA, a Delaware corporation and UNILENS VISION SCIENCES
INC., a Delaware corporation (jointly and severally, “Maker”), promises to pay to the order of REGIONS BANK, an Alabama banking corporation (“Lender”), in lawful money of the United States of America, in
immediately available funds, at the principal office of Lender at 100 North Tampa Street, Suite 3100, Tampa, Florida 33602, or at such other location as Lender may designate from time to time, the principal sum of One Million Five Hundred Thousand
and No/100 Dollars ($1,500,000.00) or so much thereof which may have been advanced pursuant to the Credit and Security Agreement dated as of November 9, 2009, as modified pursuant to that certain Joinder Agreement and First Amendment to Credit
and Security Agreement dated of even date herewith between Lender and Maker (as amended, “Loan Agreement”), together with interest thereon, as described below. Capitalized terms used herein and not otherwise defined shall have the
meaning assigned to them in the Loan Agreement. 
 This Note shall bear interest on the daily outstanding balance of principal
at a variable rate per annum, calculated on a 365/360 basis, equal to (i) the LIBOR Rate plus three and one quarter percent (3.25%) if the Funded Debt to EBITDA ratio is less than 1:00 to 1:00, or (ii) the LIBOR Rate plus three and
three quarters percent (3.75%) if the Funded Debt to EBITDA ratio is equal to or greater than 1:00 to 1:00, such LIBOR Rate to change automatically from time to time, but not more often than once per month. Notwithstanding the foregoing, in no
event shall the interest rate hereunder be less than four and three quarters percent (4.75%) per annum. Any necessary change to the interest rate spread shall occur within thirty (30) days after Lender’s receipt of Maker’s
required financial reporting requirements. 
 The principal and interest under this Note shall be payable as follows:

 (i) an interest payment of all accrued unpaid interest on the outstanding principal balance of the Loan
shall be due and payable beginning on September 9, 2010 and continuing on the ninth
(9th) day of each calendar month thereafter (each a
“Payment Date”); and 
 (ii) the entire outstanding unpaid principal balance of this Note, together with
accrued and unpaid interest and any other amounts due under this Note, the Loan Agreement and the other Loan Documents shall be due and payable on November 8, 2010, subject to extension as more particularly described below (“Maturity
Date”). 
 Interest on the indebtedness evidenced by this Note shall accrue and be calculated on a 365/360 basis; that
is by applying the ratio of the interest rate over a year of 360 days, multiplied by the outstanding principal balance, multiplied by the actual number of days the principal balance is outstanding. 

This is a revolving credit note and the principal may be paid down and reborrowed during the term of this Note. 

 In Lender’s sole discretion, the Maturity Date may be extended for a term of 364 days.
No more than two such extensions of the Maturity Date will be made. If Lender elects to allow the Maturity Date to be extended, no further action or documentation will be required of Lender or Borrower. If Lender elects to not allow the Maturity
Date to be extended, Lender will mail a written notice of Lender’s election to Borrower’s address as reflected on Lender’s records for the Revolving Loan. Any such extension of the Maturity Date will be on the same terms, conditions
and provisions of this Agreement and the Revolving Credit Note (except for the Maturity Date, which will be extended by 364 days), including, without limitation, Borrower’s obligation to make payments of principal and/or interest and this Note
shall continue in full force and effect. Lender will have no obligation to extend the Maturity Date, and no extension of the Maturity Date will further obligate Lender to grant any subsequent, further or additional extensions of the Maturity Date.

 For purposes of this Note, the following terms shall have the following meanings: 

“Interest Period” means, with respect to the initial Interest Period hereunder, the period commencing on the date of the
Original Note (as hereinafter defined) and, with respect to any subsequent Interest Period hereunder, the period commencing on the last day of the immediately preceding Interest Period, and in any case ending on the day numerically corresponding to
the date of this Note in the first month thereafter; provided that any Interest Period which begins on a day of a calendar month for which there is no numerically corresponding day in the appropriate subsequent calendar month shall end on the last
day of the appropriate subsequent calendar month. 
 “LIBOR Business Day” shall mean a day on which the office
of Lender at which payments on the Loan are to be made is open for business and on which dealings in U.S. dollar deposits are carried out in the London Interbank market. 

“LIBOR Rate” shall mean, with respect to any Interest Period, the rate for deposits in U.S. dollars for a period
comparable to the terms of such Interest Period which appears on Reuters Screen LIBOR01 Page as of 11:00 a.m., London, England time on the day (the “Pricing Date”) that is two LIBOR Business Days preceding the first day of such
Interest Period, as such rate is published on the Business Day next following the Pricing Date in the Money Market Section of The Wall Street Journal. If such rate cannot be so determined for any reason, Lender will request the principal London
office of at least two banks to provide a quotation of its rate for deposits in U.S. dollars for a period comparable to the applicable Interest Period and the rate for such Interest Period will be the arithmetic mean of such quotations. 

“Minimum Rate” shall mean four and three quarters percent (4.75%) per annum. 

This Note is the Revolving Credit Note referred to in, and issued pursuant to, the Loan Agreement, the terms of which are incorporated
herein by reference. The Loan Agreement contains provisions for, among other things, the acceleration of the stated maturity of this Note upon the happening of certain stated events set forth therein. 

 Maker does hereby authorize and instruct Lender to debit and draft maker’s checking
account maintained with Lender bearing account number 0123277386 (and/or any other accounts maintained with Lender) for all payments and amounts due to Lender monthly hereunder, as the monthly payments hereunder may vary from month to month.

 The principal amount of this Note may be prepaid in whole or in part at any time without penalty. Early payments will not,
unless agreed to by Lender in writing, relieve Maker of Maker’s obligation to make payments under the payment schedule. 

In the event this Note is not paid in full on the Maturity Date, the amount due hereunder shall bear interest at a rate per annum equal
to the interest rate calculated pursuant to the second paragraph hereof, plus an additional two percent (2.00%), such interest rate to change automatically from time to time, payable on demand. The aforesaid interest rate shall continue to apply
whether or not judgment shall be entered on this Note. 
 If any payment of principal or interest on this Note shall become due
on a Saturday, Sunday or on any other day on which Lender’s offices in Birmingham, Alabama or such other office designation by Lender, are not open for business, such payment shall be made on the preceding Business Day. 

If any payment is 15 or more days late, Maker will be charged a late fee equal to five percent (5.00%) of the unpaid portion of such
payment. 
 In no contingency or event whatsoever shall the interest rate charged hereunder exceed the highest rate permissible
under applicable state and federal law. In the event Lender has received interest hereunder in excess of the highest allowed rate, Lender shall promptly refund such excess to Maker. 

All payments received by Lender hereunder shall be applied first to unpaid interest, second to the principal balance hereof and third to
other charges payable by Maker. 
 All advances under the Revolving Credit Loan made by Lender to Maker pursuant to the Loan
Agreement and all payments and prepayments on account of the principal and interest thereof shall be recorded by Lender on the Revolving Credit Loan Account which account statements, absent manifest error, shall be conclusive and binding on Maker;
provided, however, that the failure of Lender to make any such recordation shall not limit or otherwise affect the obligation of Maker hereunder. 

If Maker fails to pay any portion of the amounts due hereunder when due and payable or if Maker fails to perform, keep or observe any
other term, provision, condition, covenant, warranty or representation contained herein, in the Loan Agreement, in the Term Note, in the Swap Documents or in any of the Other Agreements, it shall be an Event of Default hereunder. 

Maker hereby waives presentment, demand, protest and notice of any kind in connection with this Note. 

This Note shall bind Maker and its successors and assigns, and the benefits hereof shall inure to the benefit of Lender and its
successors and assigns. All references herein to the “Maker” and “Lender” shall be deemed to apply to Maker and Lender, respectively, and their respective successors and assigns. 

 Provided that Maker draws funds under the Term Loan, Maker covenants and agrees that it will
maintain in full force and effect that certain ISDA Master Agreement between Maker and Lender, or its affiliate, and all swap documents, and related agreements, together with any related schedules and confirmations entered into now or in the future
(being collectively referred to as the “Swap Documents”), and promptly pay and perform all of its obligations under the Swap Documents. The payment of the Note, and the payment and performance of Maker’s obligations under the
Swap Documents are hereby secured by the Loan Agreement and other related security instruments and all Swap Documents are deemed to be part of the Loan Documents. A default under any of the Swap Documents shall be a default under the Note, the Loan
Agreement, and all security instruments related thereto. Notwithstanding any language contained in such documents, Maker shall not prepay the Note, or any indebtedness without simultaneously paying all sums due under the Swap Documents attributable
or arising from such prepayment. 
 To the extent permitted by applicable law, Maker hereby grants to Lender and Lender reserves
a right of setoff in all Maker’s accounts with Lender (whether checking, savings, or some other account). This includes all accounts Maker holds jointly with someone else and all accounts Maker may open in the future. However, this does not
include any IRA or Keogh accounts, or any trust accounts for which setoff would be prohibited by law. Maker authorizes Lender, to the extent permitted by applicable law, to charge or setoff all sums owing on the Indebtedness against any and all such
accounts, and, at Lender’s option, to administratively freeze all such accounts to allow Lender to protect Lender’s charge and setoff rights provided in this paragraph. 

Maker hereby consents and agrees, without notice from Lender, to any extension of payment or waiver thereof with respect to this Note.

 This Note, for all purposes, shall be governed by, and construed in accordance with, the laws of the State of Florida. In the
event any provision of this Note shall be prohibited or invalid under applicable law, such provision shall be ineffective to the extent of such prohibition or invalidity without invalidating the remainder of such provision or the remaining
provisions of this Note. 
 The obligations of each person and entity comprising Maker shall be joint and several. The
unenforceability or invalidly of any provision of this Note as to any entity or circumstance shall not render that provision unenforceable or invalid as to any other entity or circumstance and all provisions hereof, in all other respects shall
remain valid and enforceable. 
 WAIVER OF JURY TRIAL. NO PARTY TO THIS NOTE OR ANY ASSIGNEE, SUCCESSOR, HEIR OR PERSONAL
REPRESENTATIVE OF A PARTY SHALL SEEK A JURY TRIAL IN ANY LAW SUIT, PROCEEDING, COUNTERCLAIM, OR ANY OTHER LITIGATION PROCEDURE BASED UPON OR ARISING OUT OF THIS NOTE, ANY RELATED AGREEMENT OR INSTRUMENT, ANY SECURITY FOR THE INDEBTEDNESS EVIDENCED
HEREBY OR THE DEALINGS OR THE RELATIONSHIP BETWEEN OR AMONG THE PARTIES, OR ANY OF THEM. NO PARTY WILL SEEK TO 

 
CONSOLIDATE ANY SUCH ACTION, IN WHICH A JURY TRIAL HAS BEEN WAIVED, WITH ANY OTHER ACTION IN WHICH A JURY TRIAL CANNOT OR HAS NOT BEEN WAIVED. THE PROVISIONS OF THIS PARAGRAPH HAVE BEEN FULLY
DISCUSSED BY THE PARTIES HERETO, AND THESE PROVISIONS SHALL BE SUBJECT TO NO EXCEPTIONS. NO PARTY HAS IN ANY WAY AGREED WITH OR REPRESENTED TO ANY OTHER PARTY THAT THE PROVISIONS OF THIS PARAGRAPH WILL NOT BE FULLY ENFORCED IN ALL INSTANCES.

 Maker hereby agrees that this is a renewal of that certain Revolving Credit Note dated November 9, 2009
(“Original Note”) from Unilens Corp. USA to Lender (“Obligation”) and not a refinance of said Obligation. Maker further acknowledges and agrees that the Obligation has remained and shall continue without
interruption or derogation of the security interest granted in connection therewith. 
 IN WITNESS WHEREOF, Maker has executed
this Note on the date first above written. 
  

			
	UNILENS CORP. USA, a Delaware corporation
		
	By:	 	/s/ Michael J. Pecora
		 	 Michael J. Pecora
 President
and CEO

	
	UNILENS VISION SCIENCES INC., a Delaware corporation
		
	By:	 	/s/ Joan L. Yori
		 	Joan L. Yori
		 	Vice PresidentAmendment to Note, Warrant and Security Agreement

 Exhibit 10.1 

AMENDMENT TO NOTE, WARRANT AND SECURITY AGREEMENT 

This AMENDMENT TO SECURED CONVERTIBLE PROMISSORY NOTE, WARRANT and SECURITY AGREEMENT (this “Amendment”) is made as of
September 22, 2010, by and between DayStar Technologies, Inc. (the “Company”), and Dynamic Worldwide Solar Energy, LLC (the “Holder”). 

WHEREAS, the Company issued to the Holder a First Secured Convertible Promissory Note dated April 29, 2010 (as amended to date, the
“Note”); 
 WHEREAS, the Company issued to the Holder a Warrant for the Purchase of Shares of Common Stock dated
April 29, 2010 (the “Warrant”); 
 WHEREAS, the Company and the Holder are parties to a Security Agreement dated
as of April 29, 2010 (the ‘Security Agreement”); 
 WHEREAS, the Company and the Holder have agreed to amend the
Note to, among other things, provide that the Maturity Date (as defined in the Note) shall be January 22, 2011; 
 WHEREAS,
the Company and the Holder have agreed to amend the Warrant to, among other things, provide that the Purchase Price (as defined in the Warrant) shall be $1.25 per share; and 

WHEREAS, the Company and Holder have agreed to amend the Security Agreement to exclude certain items from the Collateral (as defined in
the Security Agreement) so that the Company may sell such items; 
 NOW, THEREFORE, for good and valuable consideration, the
parties agree as follows: 
 1. The Maturity Date of the Note, as defined in Section 3(a) of the Note, is hereby amended to
be January 22, 2011. 
 2. The following is added immediately prior to the first sentence of Section 2(a) of
the Note: “At any time after the date which is 255 days after April 29, 2010,”. 
 3. Section 3(e) of the
Note is hereby deleted and replaced in its entirety by the following: 
 “Prepayment. Payor may prepay all or any
part of this Note only after the date which is 260 days after the issuance hereof and then only by giving Holder at least five (5) days advance written notice of Payor’s intent to prepay the Note, specifying the date on which such
prepayment will be made, whereupon such Holder shall have the right to convert, pursuant to Section 2(a) above, all or any part of this Note on or before the date scheduled for such prepayment.” 

 4. The Company confirms that, as of the date hereof, the Conversion Price (as defined in the
Note) is $0.90 per share and the number of shares of Common Stock (as defined in the Note) issuable upon conversion of the Note is 722,222; such Conversion Price and number of shares issuable upon conversion reflect adjustments in
accordance with the Note and the 9:1 reverse stock split in May 2010. 
 5. From and after the date hereof, Section 2(f) of
the Note is hereby deleted and replaced in its entirety by the following: 
 “Limitation on Cash Payment. If Holder
elects to convert this Note prior to the Maturity Date at a price less than $0.90 per share, and on the Maturity Date Payor’s VWAP is less than $0.90 and Holder by this conversion has not been compensated for the original principal amount of
the Note plus interest accrued thereon, Payor will make a cash payment to Holder of any unpaid principal amount of the Note plus any accrued and unpaid interest based upon the following calculation: ($0.90 – VWAP) x 722,222.” 

6. From and after the date hereof, Section 3(b) of the Note is hereby deleted and replaced in its entirety by the following:

 “Payment on Event of Merger or Acquisition. Regardless of whether Payor causes the events to occur in
Section 2.d.1 above, if any consolidation with or merger of Payor with or into another corporation (other than a merger or consolidation in which Payor is the surviving or continuing corporation) or any sale, lease or conveyance to another
corporation of the property of Payor as an entirety or substantially as an entirety, in either case while any principal or accrued interest remains outstanding under this Note, for a sales price equivalent to less than $0.75 per share of Capital
Stock (“Sale Price”), then at Holder’s election, the Payor within a reasonable time after the completion of consolidation or merger (not to exceed 30 days) shall pay to Holder an additional sum of ($0.75 – Sales Price)* 722,222
(which represents the maximum shares of Capital Stock issuable upon conversion of the Note) (subject to adjustment in the event of any stock splits, stock dividends or other recapitalization of such class or series of Capital Stock subsequent to the
date of such sale or issuance) up to a maximum of $325,000 in addition to any cash amounts payable for principal or accrued interest after conversion of the Note. This payment is to make Holder whole for its lost expectation of profit if Payor had
continued as an independent entity. Payment under this Section 3.b is not considered to be the contracting for, charge or receipt of interest as contemplated in Section 12 below.” 

7. The first paragraph of the Warrant is deleted in its entirety and replaced with the following: 

“THIS CERTIFIES THAT, FOR VALUE RECEIVED, Dynamic Worldwide Solar Energy, LLC, or its registered assign(s) (the
“Holder”), is entitled to purchase from Daystar Technologies, Inc., a Delaware corporation (the “Company”), subject to the terms and conditions set forth in this Warrant, up to 240,741 fully paid and
nonassessable shares of common stock (“Common Stock”), of the Company, at any time commencing 
  

 2 

 
on the date that is 255 days after April 29, 2010 (the “Commencement Date”) and expiring at 5:00 p.m. PST, on April 28, 2017 (the “Expiration Date”).
The price for each share of Common Stock purchased hereunder (as adjusted as set forth herein, collectively the “Warrant Shares”) is $1.25 per share until expiration of this Warrant (as adjusted as set forth herein, the
“Purchase Price”).” 
 8. The parties hereby exclude from the “Collateral” on Exhibit A to the
Security Agreement, and agree that the Company may sell, items of furniture, fixtures or equipment to be selected by the Company to be sold in bona fide sales to third parties unaffiliated with the Company or any of its
“affiliates”, provided that the only items that may be so excluded and selected by the Company shall be items of furniture, fixtures or equipment that are not expected to be needed for future operations, and provided further that such
items shall have an aggregate fair market value not exceeding $100,000. The Company agrees to use all of the net proceeds of such sales for working capital purposes. 

9. Except to the extent amended hereby, the Note, the Warrant and the Security Agreement shall continue in full force and effect and
shall not be otherwise affected by this Amendment. The parties agree that to the extent the modifications to the Note and the Warrant made pursuant to this Agreement may result in the issuance by the Company of shares of its Common Stock in
violation of stockholder approval requirements of Nasdaq Stock Market Rule 5635, the Company shall not issue such shares without first complying with such rule. 

10. This Amendment has been authorized by all necessary action of the Company and the Holder and shall be governed by and construed in
accordance with the laws of the State of Delaware, as such laws are applied to contracts to be entered into and performed entirely in the State of Delaware by Delaware residents. This Amendment may be executed in any number of counterparts, each of
which when so executed shall be deemed to be an original and all of which together shall constitute one and the same agreement. This Amendment may be executed by facsimile or electronic signature. 

IN WITNESS WHEREOF, the parties have executed this Amendment on the date first above written. 

 

									
	DayStar Technologies, Inc.	  		  	Dynamic Worldwide Solar Energy, LLC
					
	By:	  	 /s/ Patrick J. Forkin III
	  		  	By:	  	 /s/ Brad Zackson

					
	Name:	  	Patrick J. Forkin III	  		  	Name:	  	Brad Zackson
					
	Title:	  	Sr. VP Corporate Development	  		  	Title:	  	Authorized Signatory

  

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