This excerpt taken from the EYE 8-K filed Jul 13, 2005.
VISX STAR® Excimer Laser System. The VISX STAR® System is a fully integrated ophthalmic medical device incorporating an excimer laser and a computer-driven workstation. The laser ablations produced by the VISX STAR® System are the product of a variable diameter excimer laser beam scanning system. Seven beams that range in size from 0.65 to 6.5 millimeters are homogenized as they converge, scan, and rotate to produce an extremely smooth ablation area on the eye.
Only the VISX STAR® System is capable of performing treatments using a multi-variable sized scanning beam (which includes small-spot scanning) commonly known as variable spot scanning, or VSStm. This enables refractive corrections to be completed in a shorter time and with less tissue removal than with other excimer lasers. In addition, the VISX STAR® System centers on the eye and tracks eye movements in three dimensions during the procedure. VISX also recently released its Iris Registration technology, the first fully automated method of aligning and registering wavefront corrections for CustomVue® treatment. Iris Registration is designed to replace the current means of registration, which involves manual marking of the eye to assess rotational movement.
The VISX STAR® System performs Standard LASIK, CustomVue® laser vision correction, PRK, Custom-CAP®, and PTK procedures.
VISX WaveScan® System. The WaveScan® System is a diagnostic device that uses laser beam technology to measure comprehensive refractive errors of the eye and complex mathematical algorithms to derive comprehensive refractive information about the patients individual optical system, and then displays this information in the form of an aberration map. This unique map, similar to a fingerprint for each patients eye, offers objective information about refractive errors associated with nearsightedness, farsightedness, and astigmatism, as well as information about higher order aberrations that were previously unmeasurable by any other instrument.
VISX Treatment Cards. VISX controls the use of the VISX STAR® System with proprietary cards. Each card provides the user with specific access to proprietary software and is required to operate the VISX STAR® System. Because treatment cards are required to perform procedures, there is a strong correlation between treatment card sales and the number of procedures performed on VISX STAR® Systems. Types of VISX treatment cards include: VisionKey® Cards for performing standard LASIK procedures, which in the United States carries a license fee for each procedure that is purchased; CustomVue® Cards for performing Custom LASIK, which carry a worldwide license fee for each procedure that is purchased; Custom-CAP® Cards for performing laser vision correction with a previously decentered ablation, which carry a worldwide license fee for each procedure that is purchased; and the PTK Card, which is offered to physicians at a nominal charge to treat certain types of corneal pathologies.