EXHIBIT 99.20

Friday, February 27, 1998

Company Press Release


                    Premier Laser Systems Tender Offer For
            Ophthalmic Imaging Systems Stock to Commence Following
                    Effectiveness of Registration Statement


IRVINE, CA (February 27, 1998) . . . . . . .  Premier Laser Systems, Inc.
(Nasdaq NM: PLSIA) announced today that it has agreed with Sacramento-based
Ophthalmic Imaging Systems (Nasdaq:OISI) that Premier's tender offer for OIS'
stock will commence promptly following the effectiveness of Premier's related
registration statement.  Premier intends to file the registration next week in
order to register common stock, and common stock underlying warrants, to be
offered to OIS' shareholders.  As previously announced, Premier intends to
offer, in return for each share of OIS tendered, $1.75 in cash, $0.25 in Premier
stock and two warrants, each of which permit the holder to acquire $0.25 worth
of stock for a nominal purchase price if OIS meets certain future revenue goals.

     OIS is engaged in the business of designing, developing, manufacturing and
marketing digital imaging systems and image enhancement and analysis software
for use by practitioners in the ocular health field.

     Premier Laser Systems develops, manufactures and markets several lines of
proprietary medical lasers, fiber optic delivery systems, corneal topography
systems and associated products and services for a variety of dental, ophthalmic
and surgical applications.