Exhibit 10.16a

                              AMENDMENT to LEVEL 3
                              EMPLOYMENT AGREEMENT


     This  AMENDMENT (the  "Amendment"),  effective as of April 17, 2000, by and
between PSS World Medical, Inc., a Florida corporation (the "Company"),  and the
officer of the Company whose signature appears below ("Executive"),  amends that
certain  Employment  Agreement,  dated as of the date  indicated  below,  by and
between  the Company and  Executive,  as  heretofore  amended  (the  "Employment
Agreement").

     In consideration of the mutual promises and covenants herein contained, the
parties hereto agree as follows:

     1. Section 3 of the  Employment  Agreement is hereby  amended by adding the
following sentence at the end thereof:

          "Notwithstanding  the  foregoing,  if a Change of  Control  occurs the
     Employment Period shall be automatically  extended through the later of (i)
     the  third  anniversary  of the  Change  of  Control,  or (ii)  the  normal
     expiration of the then-current term, including any prior extensions."

     2. Section 6 of the  Employment  Agreement is hereby amended by deleting in
its entirety the definition of Change of Control and  substituting  therefor the
following:

          A "Change of Control" shall mean:

               (a) The  acquisition by any  individual,  entity or group (within
          the meaning of Section 13(d)(3) or 14(d)(2) of the Securities Exchange
          Act of  1934,  as  amended  (the  "Exchange  Act"))  (a  "Person")  of
          beneficial  ownership  (within the  meaning of Rule 13d-3  promulgated
          under the Exchange Act) of 35% or more of the combined voting power of
          the then outstanding voting securities of the Company entitled to vote
          generally  in the  election of  directors  (the  "Outstanding  Company
          Voting  Securities");  provided,  however,  that for  purposes of this
          subsection  (a), the  following  acquisitions  shall not  constitute a
          Change of Control:  (i) any  acquisition by any employee  benefit plan
          (or  related  trust)  sponsored  or  maintained  by the Company or any
          corporation  controlled by the Company, or (ii) any acquisition by any
          corporation pursuant to a transaction which complies with clauses (i),
          (ii) and (iii) of subsection (c) of this definition; or

               (b)  Individuals  who, as of the Effective  Date,  constitute the
          Board (the  "Incumbent  Board")  cease for any reason to constitute at
          least a majority of the Board; provided,  however, that any individual
          becoming a director  subsequent to the Effective Date whose  election,
          or nomination for election by the Company's stockholders, was approved
          by a vote of at least a majority of the directors then  comprising the
          Incumbent  Board shall be considered as though such  individual were a
          member of the Incumbent  Board, but excluding,  for this purpose,  any
          such individual whose initial  assumption of office occurs as a result
          of an  actual or  threatened  election  contest  with  respect  to the
          election  or  removal  of  directors  or other  actual  or  threatened
          solicitation  of proxies or consents by or on behalf of a Person other
          than the Board; or

               (c) Consummation of a reorganization,  merger or consolidation or
          sale or other disposition of all or substantially all of the assets of
          the  Company  (a  "Business  Combination"),   in  each  case,  unless,
          following such Business  Combination,  (i) all or substantially all of
          the  individuals   and  entities  who  were  the  beneficial   owners,
          respectively,  of the Outstanding Company Common Stock and Outstanding
          Company  Voting   Securities   immediately   prior  to  such  Business
          Combination  beneficially own,  directly or indirectly,  more than 80%
          of, respectively,  the then outstanding shares of common stock and the
          combined  voting  power  of the  then  outstanding  voting  securities
          entitled to vote  generally in the election of directors,  as the case
          may be, of the  corporation  resulting from such Business  Combination
          (including,  without  limitation,  a corporation  which as a result of
          such transaction  owns the Company or all or substantially  all of the
          Company's assets either directly or through one or more  subsidiaries)
          in substantially the same proportions as their ownership,  immediately
          prior to such Business  Combination of the Outstanding  Company Common
          Stock and Outstanding  Company Voting Securities,  as the case may be,
          (ii) no Person (excluding the Company or any employee benefit plan (or
          related trust) of the Company or such corporation  resulting from such
          Business Combination)  beneficially owns, directly or indirectly,  35%
          or more of the combined  voting power of the then  outstanding  voting
          securities   of  such   corporation   resulting   from  such  Business
          Combination  except to the extent that such ownership existed prior to
          the Business Combination, and (iii) at least a majority of the members
          of the  board of  directors  of the  corporation  resulting  from such
          Business  Combination  were members of the Incumbent Board at the time
          of the  execution  of the initial  agreement,  or of the action of the
          Board, providing for such Business Combination; or

               (d) If Executive's employment responsibilities are primarily with
          Diagnostic  Imaging,  Inc., a disposition by the Company of a majority
          of the stock or substantially all of the assets of Diagnostic Imaging,
          Inc.;  provided,  however,  that if Executive is offered and accepts a
          position  with the  Company or another  subsidiary  or division of the
          Company immediately  following such disposition of Diagnostic Imaging,
          Inc., then a Change of Control shall not be deemed to have occurred by
          virtue of this subsection (d); or

               (e) If Executive's employment responsibilities are primarily with
          Gulf South Medical  Supply,  Inc., a  disposition  by the Company of a
          majority of the stock or substantially all of the assets of Gulf South
          Medical Supply, Inc.; provided,  however, that if Executive is offered
          and  accepts a position  with the  Company or  another  subsidiary  or
          division of the Company immediately following such disposition of Gulf
          South  Medical  Supply,  Inc.,  then a Change of Control  shall not be
          deemed to have occurred by virtue of this subsection (e); or

               (f) If Executive's employment responsibilities are primarily with
          the Physician Sales & Service  division of the Company,  a disposition
          by the Company of  substantially  all of the assets of such  division;
          provided, however, that if Executive is offered and accepts a position
          with the  Company or another  subsidiary  or  division  of the Company
          immediately  following  such  disposition  of the  Physician  Sales  &
          Service division, then a Change of Control shall not be deemed to have
          occurred by virtue of this subsection (f).

          3. Notwithstanding the foregoing,  if, in the opinion of the Company's
     accountants,  the  foregoing  amendments  (or any  portion  thereof)  would
     preclude the use of "pooling of interest" accounting treatment for a Change
     of Control transaction that (a) would otherwise qualify for such accounting
     treatment,  and (b) is  contingent  upon  qualifying  for  such  accounting
     treatment,  then such  amendments  (to the extent so determined to preclude
     such pooling of interests  accounting  treatment) will not be effective and
     the  terms of the  Employment  Agreement  will  remain in effect as if such
     amendments (or portion thereof) had not been proposed.

          4. As amended hereby, the Employment Agreement, as heretofore amended,
     shall be and remain in full force and effect.

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

                                 PSS WORLD MEDICAL, INC.


                                 By:        /s/ Patrick C. Kelly
                                    -----------------------------
                                    Patrick C. Kelly
                                    Chairman of the Board and CEO


                                 By:        /s/ David A. Smith
                                    -----------------------------
                                    David A. Smith
                                    Executive Vice President and CFO


                                 EXECUTIVE

                                 /s/ GARY A. CORLESS
                                 ------------------------------
                                 GARY A. CORLESS


                         Date of original Employment Agreement: April 1, 1998