Document:

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                                                                   EXHIBIT 10.18

               First Amendment to Revolving Loan Agreement between
         AmSouth Bank and Surgical Laser Technologies dated May 31, 2000

RESOLVED, that, effective December 31, 2001, AmSouth Bank and Surgical Laser
Technologies hereby declare and certify by the signatures indicated below, that
Article VII and all the contents represented in this section as found on page 20
of the Loan Agreement dated May 31, 2000, should be amended and restated as
follows:

                                   Article VII
                               FINANCIAL COVENANTS

So long as the Note shall remain unpaid or the Bank shall have any Commitment
under this Agreement:

Section   7.01 Traditional Cash Flow Coverage.

     The Borrower shall maintain traditional cash flow coverage of 1.25X as
measured over the one year period beginning the first day of the Borrowers then
beginning Fiscal Year and ending on the last day of the Borrower's same Fiscal
Year. Traditional Cash Flow coverage is defined as net income plus depreciation

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expense plus amortization expense plus total interest expense minus dividends
divided by the prior period current portion of long term debt plus interest
expense.

Section   7.02 Interest Coverage.

     The Borrower shall maintain interest coverage of 2.25X as measured over the
one year period beginning the first day of the Borrowers then beginning Fiscal
Year and ending on the last day of the Borrower's same Fiscal Year. Interest
Coverage is defined as net income plus interest expense plus depreciation
expense divided by interest expense.

Section   7.03 Leverage Ration.

     The Borrower shall maintain at all times a ration of total Debt to tangible
net worth of not more than .60 to 1.

Accepted and Agreed upon this 20th day of February, 2002:

AmSouth Bank                                   Surgical Laser Technologies, Inc.

By: /s/ Rhett D. Jordan                        By: /s/ Michael R. Stewart
    --------------------                           ----------------------
RHETT D. JORDAN                                MICHAEL R. STEWART
Vice President                                 President and CEO

                                               By: /s/ Davis Woodward
                                                   ----------------------
                                               Davis Woodward
                                               Chief Financial Officer

                                               By: /s/ Craig K. Carra
                                                   ----------------------
                                               Craig Carra
                                               Controller<PAGE>

                                                                   EXHIBIT 10.19

              SECOND AMENDMENT TO REVOLVING LOAN AGREEMENT BETWEEN
         AMSOUTH BANK AND SURGICAL LASER TECHNOLOGIES DATED MAY 31, 2000

RESOLVED, that, effective June 26, 2002, AmSouth Bank and Surgical Laser
Technologies hereby declare and certify by the signatures indicated below, that
Article I, Section 1.01, more specifically the contents represented in this
section as found on page 4 of the Loan Agreement dated May 31, 2000 regarding
the definition of "Termination Date" should be amended and restated as follows:

                "Termination Date" means the 31day of May, 2004.

Accepted and Agreed upon this 27 day of June, 2002.

AmSouth Bank                            Surgical Laser Technologies Inc.

By: /s/ Rhett D. Jordan                 By: /s/ Michael R. Stewart
    -------------------------               -------------------------------
        Rhett D. Jordan                         Michael R. Stewart
        Its: Vice President                     Its: President and
                                                Chief Executive Officer

                                        By: /s/ Davis Woodward
                                            -------------------------------
                                                Davis Woodward
                                                Its: Vice President of Finance
                                                and Chief Financial Officer<PAGE>

                                                                   Exhibit 10.20

               THIRD AMENDMENT TO REVOLVING LOAN AGREEMENT BETWEEN
         AMSOUTH BANK AND SURGICAL LASER TECHNOLOGIES DATED MAY 31, 2000

RESOLVED, that effective January 1, 2003, AmSouth Bank and Surgical Laser
Technologies, Inc. hereby declare and certify by the signatures indicated below,
that Article VII and all the content represented in this section as found on
page 20 of the Loan Agreement dated May 31, 2000, and as amended pursuant to a
First Amendment dated as of February 20, 2002, and as amended by a Second
Amendment dated as of June 27, 2002, should be amended and restated as follows:

                                   ARTICLE VII
                               FINANCIAL COVENANTS

So long as the Note shall remain unpaid or the Bank shall have any Commitment
under this Agreement:

     Section   7.01 Traditional Cash Flow Coverage

               The Borrower shall maintain traditional cash flow coverage of
1.25X as measured over the one year period beginning the first day of the
Borrower's then beginning Fiscal Year and ending on the last day of the
Borrower's same Fiscal Year. Traditional Cash Flow coverage is defined as
Borrower's net income before purchase accounting adjustments plus depreciation
expense plus amortization expense plus total interest expense minus dividends
divided by the prior period current portion of long-term debt plus interest
expense. It shall further be a condition to the Borrower's good standing under
the Revolving Loan Agreement that commencing July 1, 2003, the parent company,
PhotoMedex, Inc. and its subsidiaries shall maintain traditional cash flow
coverage of 1.25X as measured over the same period as for the Borrower, and
where Traditional Cash Flow Coverage shall be defined as the consolidated net
income of the parent company plus depreciation expense plus amortization expense
plus interest expense minus dividends, divided by the prior period current
portion of long-term debt plus interest expense, where the prior period current
portion as of July 1, 2003 shall be that portion currently due on or before
December 31, 2003.

     Section   7.02 Interest Coverage.

     The Borrower shall maintain interest coverage of 2.25X as measured over the
one year period beginning the first day of the Borrower's then beginning Fiscal
Year and ending on the last day of the Borrower's same Fiscal Year. Interest
Coverage is defined as Borrower's net income before purchase accounting
adjustments plus depreciation expense plus amortization expense plus total
interest expense divided by the interest expense. It shall further be a
condition to the Borrower's good standing under the Revolving Loan Agreement
that commencing July 1, 2003, the parent company, PhotoMedex, Inc. and its
subsidiaries shall maintain interest coverage of 2.25X as measured over the same
period as for the Borrower, and where Interest Coverage shall be defined as the
consolidated net income of the parent company plus depreciation expense plus
amortization expense plus interest expense, divided by interest expense.

     Section   7.03 Leverage Ratio.

     The Borrower shall maintain at all time a ratio of total Debt to tangible
net worth of not more than .60 to 1. It shall further be a condition to the
Borrower's good standing under the Revolving Loan Agreement that commencing
January 1, 2003, the parent company, PhotoMedex, Inc. and its subsidiaries shall
also maintain at all times a ratio of total Debt to tangible net worth of not
more than .60 to 1 for fiscal year 2003 and later.

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     Section   7.04 Liquidity Maintenance.

     It shall be a condition to the Borrower's good standing under the Revolving
Loan Agreement that PhotoMedex, Inc., and its subsidiaries shall maintain in the
period January 1, 2003 through June 30, 2003, unrestricted cash, cash
equivalents and short-term investments in an amount never less than the amount
by which the Borrower has drawn down the revolving line of credit.

Accepted and Agreed as of this 27th day of February, 2003.

AmSouth Bank                               Surgical Laser Technologies, Inc.
By: /s/ Rhett D. Jordan                    By: /s/ Jeffrey O' Donnell
Rhett D. Jordan                            Jeffrey O'Donnell
Its Vice President                         Its President and CEO

                                           By:/s/ Dennis McGrath
                                           Dennis McGrath
                                           Its Chief Financial Officer

In assent herewith:                        PhotoMedex, Inc.

                                           By:/s/ Jeffrey O'Donnell
                                           Jeffrey O'Donnell
                                           Its President and CEO

                                           By/s/ Dennis McGrath
                                           Dennis McGrath
                                           Its Chief Financial Officer<PAGE>

                                                                   Exhibit 10.21

              FOURTH AMENDMENT TO REVOLVING LOAN AGREEMENT BETWEEN
         AMSOUTH BANK AND SURGICAL LASER TECHNOLOGIES DATED MAY 31, 2000

RESOLVED, that effective January 1, 2003, AmSouth Bank and Surgical Laser
Technologies, Inc. hereby declare and certify by the signatures indicated below,
that Article V, Section 5.14 shall be added to the Loan Agreement dated May 31,
2000, and as amended pursuant to a First Amendment dated as of February 20,
2002, by a Second Amendment dated as of June 27, 2002, and by a Third Amendment
dated as of February 27, 2003, to read as follows:

"5.14.    GUARANTY OF PARENT COMPANY.

          The Borrower shall cause its parent company, PhotoMedex, Inc., to
guarantee, in an instrument in a form reasonably equivalent to the guaranty
attached hereto, the Borrower's performance under this Loan Agreement."

Accepted and Agreed as of this 27th day of February, 2003.

AmSouth Bank                                Surgical Laser Technologies, Inc.

By: /s/ Rhett D. Jordan                     By:/s/ Jeffrey O'Donnell
Rhett D. Jordan                             Jeffrey O'Donnell
Its Vice President                          Its President and CEO

                                            By: /s/ Dennis McGrath
                                            Dennis McGrath
                                            Its Chief Financial Officer

In assent herewith:                         PhotoMedex, Inc.

                                            By /s/ Jeffrey O'Donnell
                                            Jeffrey O'Donnell
                                            Its President and CEO

                                            By: /s/ Dennis McGrath
                                            Dennis McGrath
                                            Its Chief Financial Officer

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