INTELLECTUAL PROPERTY

As a competitor in the refractive market, LaserSight's is valued based on its proprietary technology, strong intellectual property portfolio and it’s owned and licensed patents for its broad range of state-of-the-art products that assist refractive surgeons in achieving the best clinical outcomes for their patients.

It is LaserSight's intent to realize revenue by licensing its patent(s) to other refractive surgery manufacturers. The Company's current and future products from which revenues are derived include;
· LaserScan LSX excimer laser system and associated per procedure fees
· AstraMax integrated diagnostic work station with it’s patented three stereo camera and polar grid
· AstraPro diagnostic planning software, (currently under development) and associated per procedure fees.

The Company's LaserScan LSX excimer laser system is based on precision micro-spot scanning technology covered under its U.S. Patent No. 5,520,679 (the '679 patent) Ophthalmic Surgery Method Using Non-Contact Scanning Laser, formerly known as the '679 patent, and reissued as U.S. Patent No. RE37, 504 (the '504 Scanning Patent).
The fundamental teachings of the original '679 patent encompass a refractive laser system utilizing an excimer laser with a low fluence and high repetition rate that ablates corneal tissue using small pulses delivered to the corneal surface in an overlapping pattern.

LaserSight has broadened several elements of the ‘679 Patent’s original claims by removing certain restrictions and by adding approximately 68 new claims to better encompass the breadth of technology which is covered by the ‘679 patent.
This reissue allows LaserSight to protect the uniqueness of the LaserScan LSX’s precision beam microspot scanning technology, and provides an opportunity for the Company to license its scanning technology to other companies that currently offer, or intend to offer, scanning laser systems.

The AstraMax integrated diagnostic workstation is based on technology and patents acquired from Premier Laser Systems, Inc. In March 2000, LaserSight purchased all of Premier's intellectual property related to a development project that was designed to provide front-to-back analysis and total refractive measurement of the eye.

Among the more important patents related to the AstraMax, are two U.S. patents to a multi-camera corneal analysis system that provides faster and more accurate measurements than conventional topographers through virtually instantaneous image acquisition utilizing a stereo-based multi-camera triangulation technology, and a patent covering the method of corneal analysis using a checkered polar grid illumination pattern. The specific patents addressing these technologies are as follows:

•Sarver USP 5,847,804 and USP 5,953,100
Multicamera Corneal Analysis System
•D’Souza USP 5,841,511 and USP 6,234,605
Method of Corneal Analysis using Checkered Placido
•Sarver USP 6,234,631
Combination Advanced Corneal Topography and Wave Front Aberration Measurement

The diagnostic measurements from the AstraMax can be utilized for a broad spectrum of ophthalmic applications. An AstraMax integrated workstation can be utilized in both ophthalmic and optometric practices for preparation for ophthalmic applications that require precise and accurate measurements of the eye. These applications include contact lens fitting, cataract extractions, clear lens extractions, and, planning for laser refractive surgery.