COMPOSITE RESTATED BY-LAWS
of
MENTOR CORPORATION
Containing all amendments through October 1, 1987



SHAREHOLDERS

Section 1.01  Place of Meetings. Each meeting of the shareholders shall be held at the principal executive office of the Corporation or at such other place as may be designated by the Board of Directors or the Chief Executive Officer; provided, however, that any meeting called by or at the demand of a shareholder or shareholders shall be held in the county where the principal executive office of the Corporation is located.

Section l.02  Annual Meetings. The Board of Directors shall fix the date for the annual meeting of shareholders which is to be held in each calendar year.  At the annual meeting, the shareholders shall designate the number of directors to constitute the Board of Directors, shall elect directors and shall transact such other business as may properly come before them; provided, however, that no business with respect to which special notice is required by law shall be transacted unless such notice shall have been given.

Section 1.03  Special Meetings.  A special meeting of the shareholders may be called for any purpose or purposes at any

(	time by the Chief Executive Officer; by the Chief Financial Officer; by the Board of Directors or any two or more members thereof; or by one or more shareholders holding not less than ten percent of the voting power of all shares of the Corporation entitled to vote, who shall demand such special meeting by written notice given to the Chief Executive Officer or the Chief Financial Officer of the Corporation specifying the purposes of such meeting, except that a special meeting for the purpose of considering any action to directly or indirectly facilitate or effect a business combination (as such term is from time to time defined in the Minnesota Business Corporation Act), including any action to change or otherwise affect the composition of the board of directors for that purpose, must be called by 25percent or more of the voting power of all shares entitled to vote.

Section 1.04  Meetings Held Upon Shareholder Demand.  Within 30

days of receipt of a demand by the Chief Executive Officer or the Chief Financial Officer from any shareholder or shareholders entitled to call a meeting of the shareholders, it shall be the duty of the Board of Directors of the Corporation to cause a special or regular meeting of shareholders, as the case may be, to be duly called and held on notice no later than ninety days after receipt of such demand. If the Board of Directors fails to cause such a meeting to be called and held as required by this Section, the shareholder or shareholders making the demand may call the meeting by giving notice as provided in Section 1.06 hereof at the expense of the Corporation.

Section 1.05  Notice of Meetings.  Except as otherwise specified in Section 1.07 or required by law, written notice of each meeting of the shareholders, stating the date, time and place and, in the case of a special meeting, the purpose or purposes, shall be given at least ten days and not more than sixty days prior to the meeting to every holder of shares entitled to vote at such meeting.  The business transacted at a special meeting of shareholders is limited to the purposes stated in the notice of the meeting.

Section 1.06  Waiver of Notice.  A shareholder may waive notice of the date, time, place and purpose or purposes of a meeting of shareholders. A waiver of notice by a shareholder entitled to notice is effective whether given before, at or after the meeting, and whether given in writing, orally or by attendance.  Attendance by a shareholder at a meeting is a waiver of notice of that meeting, unless the shareholder objects at the beginning of the meeting to the transaction of business because the meeting is not lawfully called or convened, or objects before a vote on an item of business because the item may not lawfully be considered at that meeting and does not

(	participate in the consideration of the item at that meeting.

Section 1.07  Quorum; Adjourned Meetings. The holders of a majority of the shares outstanding and entitled to vote shall constitute a quorum for the transaction of business at any annual or special meeting. In case a quorum shall not be present at a meeting, those present shall adjourn to such day as they shall by majority vote agree upon, and a notice of such adjournment shall be mailed to each shareholder entitled to vote at least five (5) days before such adjourned meeting. If a quorum is present, a meeting may be adjourned from time to time without notice other than announcement at the meeting. At adjourned meetings at which a quorum is present, any business may be transacted which might have been transacted at the meeting as originally noticed. If a quorum is present, the shareholders may continue to transact business until adjournment notwithstanding the withdrawal of enough shareholders to leave less than a quorum.

Section l.08  Voting Rights.  Subdivision 1.  A shareholder shall have one vote for each share held which is entitled to vote.  Except as otherwise required by law, a holder of shares entitled to vote may vote any portion of the shares in any way the shareholder chooses.  If a shareholder votes without designating the proportion or number of shares voted in a particular way, the shareholder is deemed to have voted all of the shares in that way.

Subdivision 2.  The Board may fix a date not more than sixty days before the date of a meeting of shareholders as the date for the determination of the holders of shares entitled to notice of and entitled to vote at the meeting.  When a date is so fixed, only shareholders on that date are entitled to notice of and permitted to vote at that meeting of shareholders.

Section 1.9  Proxies.  A shareholder may cast or authorize the casting of a vote by filing a written appointment of a proxy with an officer of the Corporation at or before the meeting at which the appointment is to be effective.

Section 1.10  Action Without a Meeting.  Any action required or permitted to be taken at a meeting of the shareholders of the Corporation may be taken without a meeting by written action signed by all of the shareholders entitled to vote on that action. The written action is effective when it has been signed by all of those shareholders, unless a different effective time is provided in the written action.

DIRECTORS

Section 2.01  Number, Qualifications and Term of Office.  Unti1 the first meeting of shareholders, the number of directors shall be the number named in the Articles of Incorporation.  Thereafter, the number of directors shall be established by (resolution of the shareholders but shall not be less than the lesser of (i) the number of shareholders of record and beneficially or (ii) three. In the absence of such resolution, the number of directors shall be the number last fixed by the shareholders or the Articles of Incorporation.  Directors need not be shareholders.  Each of the directors shall hold office until the annual meeting of shareholders next held after his election and until he shall resign, or shall have been removed as hereinafter provided.

Section 2.02  Vacancies.  If there be a vacancy among the directors of this Corporation by reason of death, resignation, increase in the number of directors required by Section 2.01 or otherwise, such vacancy shall be filled for the unexpired term by a majority of the remaining directors of the Board, and each person so elected shall be a director until his successor is elected by the shareholders, who may make such election at their next annual meeting or at any meeting duly called for that purpose.

Section 2.03  Removal.  Theentire Board of Directors or any individual director may be removed from office, with or without cause, by a vote of the shareholders holding a majority of the shares entitled to vote at an election of directors, except as otherwise provided by law where the shareholders have the right to cumulate their votes.  In the event that the entire Board or any one or more directors be so removed, new directors shall be elected at the same meeting.

Section 2.04  Place of Meetings.  Each meeting of the Board of Directors shall be held at the principal executive office of the Corporation or at such other place as may be designated from time to time by a majority of the members of the Board.

Section 2.05  Regular Meetings.  Regular meetings of the Board of Directors for the election of officers and the transaction of any other business shall be held without notice at the place of and immediately after each regular meeting of the shareholders.

Section 2.06  Special Meetings.  A special meeting of the Board of Directors may be called for any purpose or purposes at any time by any member of the Board by giving not less than twenty-four (24) hours' notice to all directors of the date, time and place of the meeting, provided that when notice is mailed, at least four days' notice shall be given.  The notice need not state the purpose of the meeting.

Section 2.07  Waiver of Notice: Previously Scheduled Meetings.  Subdivision 1. A director of the Corporation may waive notice of the date, time and place of a meeting of the Board. A waiver of notice by a director entitled to notice is effective whether (given before, at or after the meeting, and whether given in writing, orally or by attendance. Attendance by a director at a meeting is a waiver of notice of that meeting, unless the director objects at the beginning of the meeting to the transaction of business because the meeting is not lawfully called or convened and thereafter does not participate in the meeting.

Subdivision 2.  If the day or date, time and place of a Board meeting have been provided herein or announced at a previous meeting of the Board, no notice is required. Notice of an adjourned meeting need not be given other than by announcement at the meeting at which adjournment is taken of the date, time and place at which the meeting will be reconvened.

Section 2.08 Quorum; Acts of Board. The presence in person of a majority of the directors currently holding office shall be necessary to constitute a quorum for the transaction of business.  In the absence of a quorum, a majority of the directors present may adjourn a meeting from time to time without further notice until a quorum is present.  If a quorum is present when a duly held meeting is convened, the directors present may continue to transact business until adjournment, even though the withdrawal of a number of the directors originally present leaves less than the proportion or number otherwise required for a quorum.  Except as otherwise required by law or specified in the Articles of Incorporation of the Corporation, the Board shall take action by the affirmative vote of a majority of the directors present at a duly held meeting.

Section 2.09 Electronic Communications.  A conference among directors by any means of communication through which the directors may simultaneously hear each other during the conference constitutes a Board meeting, if the same notice is given of the conference as would be required for a meeting, and if the number of directors participating in the conference would be sufficient to constitute a quorum at a meeting.  A director may participate in a Board meeting not described in the immediately preceding sentence by any means of communication through which the director, other directors so participating and all directors physically present at the meeting may simultaneously hear each other during the meeting.  Participation in a meeting by any means referred to in this Section 2.09 constitutes presence in person at the meeting.

Section 2.10 Absent Directors.  A director of the Corporation may give advance written consent oropposition to a proposal to be acted on at a Board meeting.  If the director is not present at the meeting, consent or opposition to a proposal does not constitute presence for purposes of determining the existence of a quorum, but consent or opposition shall be counted as a vote in favor of or against the proposal and shall be entered in the minutes or other record of action at the meeting, if the proposal acted on at the meeting is substantially the same or has substantially the same effect as the proposal to which the director has consented or objected.

Section 2.11  Action Without a Meeting.  An action required or permitted to be taken at a Board meeting may be taken without a meeting by written action signed by all of the directors. Any action, other than an action requiring shareholder approval, if the Articles of Incorporation so provide, may be taken by written action signed by the number of directors that would be required to take the same action at a meeting of the Board at which all directors were present. The written action is effective when signed by the required number of directors, unless a different effective time is provided in the written action. When written action is permitted to be taken by less than all directors, all directors shall be notified immediately of its text and effective date.

Section 2.12  Committees.  Subdivision 1.  A resolution approved by the affirmative vote of a majority of the Board may establish committees having the authority of the Board in the management of the business of the Corporation only to the extent provided in the resolution.  Committees shall be subject at all times to the direction and control of the Board, except as provided in Section 2.13.

Subdivision 2.  A committee shall consist of one or more natural persons, who need not be directors, appointed by affirmative vote of a majority of the directors present at a duly held Board meeting.

Subdivision 3.  Section 2.04 and Sections 2.06 to 2.11 hereof shall apply to committees and members of committees to the same extent as those sections apply to the Board and directors.

Subdivision 4.  Minutes, if any, of committee meetings shall be made available upon request to members of the committee and to any director.

Section 2.13  Committee of Disinterested Persons.  Pursuant to the procedure set forth in Section 2.12, the Board may establish a committee composed of two or more disinterested directors or other disinterested persons to determine whether it is in the best interests of the Corporation to pursue a particular legal right or remedy of the Corporation and whether to cause the dismissal or discontinuance of a particular proceeding that seeks to assert a right or remedy on behalf of the Corporation.  The committee, once established, is not subject to the direction or control of, or termination by, the Board.  A vacancy on the committee may be filled by a majority vote of the remaining committee members.  The good faith determinations of the committee are binding upon the Corporation and its directors, officers and shareholders.  The committee terminates when it issues a written report of its determinations to the Board.

Section 2.14 Compensation.  The Board may fix the compensation, if any, of directors.

OFFICERS

Section 3.01  Number and Designation.  The Corporation shall have one or more natural persons exercising the functions of the offices of Chief Executive Officer and Chief Financial Officer.  The Board of Directors may elect or appoint such other officers or agents as it deems necessary for the operation and management of the Corporation, with such powers, rights, duties and responsibilities as may be determined by the Board, including, without limitation, a President, one or more Vice Presidents, a Secretary and a Treasurer, each of whom shall have the powers, rights, duties and responsibilities set forth in these By-Laws unless otherwise determined by the Board.  Any of the offices or functions of those offices may be held by the same person.

Section 3.02

Section 3.03  Chief Financial Officer.  Unless provided otherwise by a resolution adopted by the Board of Directors, the Chief Financial Officer (a) shall keep accurate financial records for the Corporation; (b) shall deposit all monies, drafts and checks in the name of and to the credit of the Corporation in such banks and depositories as the Board of Directors shall designate from time to time; (c) shall endorse for deposit all notes, checks and drafts received by the Corporation as ordered by the Board, making proper vouchers therefor; (d) shall disburse corporate funds and issue checks and drafts in the name of the Corporation, as ordered by the Board; (e) shall render to the Chief Executive Officer and the Board of Directors, whenever requested, an account of all of such officers transactions as Chief Financial Officer and of the financial condition of the Corporation; and (f) shall perform such other duties as may be prescribed by the Board of Directors or the Chief Executive Officer from time to time.

Section 3.04  President.  Unless otherwise determined by the Board, the President.shall be the Chief Executive Officer of the Corporation.  If an officer other than the President is designated Chief Executive Officer, the President shall perform such duties as may from time to time be assigned by the Board of Directors.

Section 3.05  Vice Presidents.  Any one or more Vice Presidents, if any, may be designated by the Board of Directors as Executive Vice Presidents or Senior Vice Presidents.  During the absence or disability of the President, it shall be the duty of the highest ranking Executive Vice President, and, in the absence of any such Vice President, it shall be the duty of the highest ranking Senior Vice President or other Vice President, who shall be present at the time and able to act, to perform the duties of the President.  The determination of who is the highest ranking of two or more persons holding the same office shall, in the absence of specific designation of order of rank by the Board of Directors, be made on the basis of the earliest date of appointment or election, or, in the event of simultaneous appointment or election, on the basis of the longest continuous employment by the Corporation.

Section 3.06  Secretary. The Secretary, unless otherwise determined by the Board, shall attend all meetings of the shareholders and all meetings of the Board of Directors, shall record or cause to be recorded all proceedings thereof in a book to be kept for that purpose, and may certify such proceedings. Except as otherwise required or permitted by law or by these By-Laws, the Secretary shall give or cause to be given notice of all meetings of the shareholders and all meetings of the Board of Directors.

Section 3.07  Treasurer.  Unless otherwise determined by the Board, the Treasurer shall be the Chief Financial Officer of the Corporation. If an officer other than the Treasurer is designated Chief Financial Officer, the Treasurer shall perform such duties as may from time to time be assigned by the Board of Directors.

Section 3.08  Authority and Duties.  In addition to the foregoing authority and duties, all officers of the Corporation shall respectively have such authority and perform such duties in the management of the business of the Corporation as may be designated from time to time by the Board of Directors.  Unless prohibited by a resolution approved by the affirmative vote of a majority of the directors present, an officer elected or appointed by the Board may, without the approval of the Board, delegate some or all of the duties and powers of an office to other persons.

Section 3.09 Term.  Subdivision 1.  All officers of the Corporation shall hold office until their respective successors are chosen and have qualified or until their earlier death, resignation or removal.

Subdivision 2. An officer may resign at any time by giving written notice to the Corporation. The resignation is effective without acceptance when the notice is given to the Corporation, unless a later effective date is specified in the notice.

Subdivision 3. An officer may be removed at any time, with or without cause, by a resolution approved by the affirmative vote of a majority of the directors present at a duly held Board meeting.

Subdivision 4. A vacancy in an office because of death, resignation, removal, disqualification or other cause may, or in the case of a vacancy in the office of Chief Executive Officer or Chief Financial Officer shall, be filled for the unexpired portion of the term by the Board.

Section 3.10  Compensation. The compensation of all officers of the Corporation shall be fixed by the Board of Directors or by the Chief Executive Officer if authorized by the Board.

INDEMNIFICATION

Section 4.01  Indemnification.  The Corporation shall indemnify such persons, for such expenses and liabilities, in such manner, under such circumstances, and to such extent, as required or permitted by Minnesota Statutes, Section 302A.521, as amended from time to time, or as required or permitted by other provisions of law; provided, however, that the Corporation shall not make advances to any person other than a director of the Corporation or of another corporation at least 80% of the common stock of all classes of which is owned directly or indirectly by the Corporation (a "Subsidiary") or an officer of the Corporation or of a Subsidiary who was elected by the directors of the Corporation or Subsidiary, as the case may be; and provided, further, that the Corporation shall not indemnify any person, other than a director of the Corporation or of a Subsidiary or an officer of the Corporation or of a Subsidiary who was elected by the directors, in respect of any judgment, penalty, fine, excise tax, settlement, expense or other matter for which such person shall have been finally determined to be liable by reason of his or her negligence, recklessness or willful misconduct.

Section 4.02  Insurance. TheCorporation may purchase and maintain insurance on behalf of any person in such person's official capacity against any liability asserted against and incurred by such person in or arising from that capacity, whether or not the Corporation would otherwise be required to indemnify the person against the liability.

SHARES

Section 5.01  Certificated and Uncertificated Shares.  Subdivision

1.  The shares of the Corporation shall be either certificated shares or uncertificated shares. Each holder of duly issued certificated shares is entitled to a certificate of shares.

Subdivision 2.  Each certificate of shares of the Corporation shall bear the corporate seal, if any, and shall be signed by the Chief Executive Officer, or the President or any Vice President, and the Chief Financial Officer, or the Secretary or any Assistant Secretary, but when a certificate is signed by a transfer agent or a registrar, the signature of any such officer and the corporate seal upon such certificate may be facsimiles, engraved or printed.  If a person signs or has a facsimile signature placed upon a certificate while an officer, transfer agent or registrar of the Corporation, the certificate may be issued by the Corporation, even if the person has ceased to serve in that capacity before the certificate is issued, with the same effect as if the person had that capacity at the date of its issue.

Subdivision 3.  A certificate representing shares issued by the Corporation shall, if the Corporation is authorized to issue shares of more than one class or series, set forth upon the face or back of the certificate, or shall state that the Corporation will furnish to any shareholder upon request and without charge, a full statement of the designations, preferences, limitations and relative rights of the shares of each class or series authorized to be issued, so far as they have been determined, and the authority of the Board to determine the relative rights and preferences of subsequent classes or series.

Subdivision 4.  A resolution approved by the affirmative vote of a majority of the directors present at a duly held meeting of the Board may provide that some or all of any or all classes and series of the shares of the Corporation will be uncertificated shares. Any such resolution shall not apply to shares represented by a certificate until the certificate is surrendered to the Corporation.

Section 5.02  Declaration of Dividends and Other Distributions. The Board of Directors shall have the authority to declare dividends

(	and other distributions upon the shares of the Corporation to the extent permitted by law.

Section 5.03  Transfer of Shares.  Shares of the Corporation may be transferred only on the books of the Corporation by the holder thereof, in person or by such person's attorney.  In the case of certificated shares, shares shall be transferred only upon surrender and cancellation of certificates for a like number of shares.  The Board of Directors, however, may appoint one or more transfer agents and registrars to maintain the share records of the Corporation and to effect transfers of shares.

Section 5.04  Record Date.  The Board of Directors may fix a time, not exceeding sixty days preceding the date fixed for the payment of any dividend or other distribution, as a record date for the determination of the shareholders entitled to receive payment of such dividend or other distribution, and in such case only shareholders of record on the date so fixed shall be entitled to receive payment of such dividend or other distribution, notwithstanding any transfer of any shares on the books of the Corporation after any record date so fixed.

MISCELLANEOUS

Section 6.01  Execution of Instruments. Subdivision 1. All deeds, mortgages, bonds, checks, contracts and other instruments pertaining to the business and affairs of the Corporation shall be signed on behalf of the Corporation by the Chief Executive Officer, or the President, or any Vice President, or by such other person or persons as may be designated from time to time by the Board of Directors.

Subdivision 2. If a document must be executed by persons holding different offices or functions and one person holds such offices or exercises such functions, that person may execute the document in more than one capacity if the document indicates each such capacity.

Section 6.02  Advances.  The Corporation may, without a vote of the directors, advance money to its directors, officers or employees to cover expenses that can reasonably be anticipated to be incurred by them in the performance of their duties and for which they would be entitled to reimbursement in the absence of an advance.

Section 6.03  Corporate Seal.  The seal of the Corporation, if any, shall be a circular embossed seal having inscribed thereon the name of the Corporation and the following words:

"Corporate Seal Minnesota".

Section 6.04  Fiscal Year.  The fiscal year of the Corporation shall be determined by the Board of Directors.

Section 6.05  Amendments.  The Board of Directors shall have the power to adopt, amend or repeal the By-Laws of the Corporation, subject to the power of the shareholders to change or repeal the same, provided, however, that the Board shall not adopt, amend or repeal any By-Law fixing a quorum for meetings of shareholders, prescribing procedures for removing directors or filling vacancies in the Board, or fixing the number of directors or their classifications, qualifications or terms of office, but may adopt or amend a By-Law that increases the number of directors.



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