The Measurement of the Corneal and Scleral Surface for the Purpose of Automating Ocular Surface Prosthetic Fitting

The objective of this proposal is to create an instrument to automatically measure the topology of the eye including corneal and scleral surfaces and create a highly accurate three dimensional model. The model is incorporated into two different ophthalmic programs for different applications. The first is a graphic interactive design tool to enable the doctor to create a computer simulated scleral lens optimized for fit, alignment and patient comfort. The second program is used for the treatment of cataract patients. Topology derived from the three dimensional scan of the cornea is combined with data obtained from an A-scan instrument to create an extremely accurate model of the patients intraocular lens (IOL). The scanner and program makes no apriori assumptions as to corneal shape making it ideal for predicting the optimal IOL implant lens for non-symmetrical post LASIK and astigmatic eyes.