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PHOENIX LASER SYSTEMS FILES U.S. PATENT FOR OPHTHALMIC WORKSTATION

 FREMONT, Calif., July 15 /PRNewswire/ -- Phoenix Laser Systems Inc. (AMEX: PXS) announced that it has filed a new patent application entitled "Method of Establishing Unique, Machine Independent Reference Frame for the Eye." This new invention describes a method for uniquely and unambiguously aligning a patient's visual line of sight to the optical axis of an ophthalmic instrument such as may be used in laser surgery or diagnostics. While unique to each patient, this alignment technique is fully repeatable, rendering it both time- and machine- independent. It is therefore expected to be particularly useful whenever accurate cross-registration of data imported on several different occasions and/or among different ophthalmic instruments is desired. The types of apparatus to benefit most from the invention include ocular laser surgery devices (for procedures such as corneal refractive surgery and/or photocoagulation especially near delicate tissue in the retina) and various diagnostic instruments employed in tissue imaging or surface topography measurements. Phoenix holds eight U.S. patents and five international patents and has more than 30 additional patent U.S. and international patent applications pending.
 Joann R. Schulz, president and chief operating officer of Phoenix observed, "The ability to precisely locate the optical center of the eye, each time a patient is treated has been a problem for both users of all commercially available refractive lasers and corneal topography systems. This new development by Phoenix, embodied in this patent application, addresses this problem and will allow us to more precisely treat patients and to assure that re-treatments and diagnostic treatments can be done more easily and with greater accuracy. For example, a patient may be treated on a number of different occasions on different instruments, and centering and alignment on the eye will be assured and be able to be repeated to the exact same spot each time the patient is treated."
 Phoenix Laser Systems Inc. is a developer of integrated laser workstations primarily for use by the medical community. The company's initial efforts have been focused on the design, development and testing of its first product, the Phoenix Ophthalmic Laser Workstation. The company's technology permits surgery designed to correct nearsightedness, farsightedness, and astigmatism, as well as a large number of eye disorders which are untreatable or only partially treatable with current technology.
 -0- 7/15/93
 /CONTACT: Jon Solow of Phoenix Laser Systems, 510-249-0300/
 (PXS)


CO: Phoenix Laser Systems Inc. ST: California IN: MTC SU:

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Date:Jul 15, 1993
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