EXHIBIT 10.28 SECURITY AGREEMENT THIS SECURITY AGREEMENT ("Security Agreement") is made and entered into on April 30, 1998, by and between OPHTHALMIC IMAGING SYSTEMS, a California corporation ("Debtor") and PREMIER LASER SYSTEMS, INC., a California...Security Agreement • July 15th, 1998 • Ophthalmic Imaging Systems Inc • Surgical & medical instruments & apparatus • California
