Customized schematic eye model for refraction correction design based on ocular wavefront and corneal topography measurements

Eugene O. Curatu; George H. Pettit M.D.; John A. Campin

doi:10.1117/12.470591

13 June 2002 Customized schematic eye model for refraction correction design based on ocular wavefront and corneal topography measurements

Eugene O. Curatu, George H. Pettit M.D., John A. Campin

Author Affiliations +

Proceedings Volume 4611, Ophthalmic Technologies XII; (2002) https://doi.org/10.1117/12.470591
Event: International Symposium on Biomedical Optics, 2002, San Jose, CA, United States

Abstract

The subject of this paper relates to the ocular optical design and vision analysis of refractive correction of the eye. After the purpose statement and the assumption list, the concept of the schematic eye matching a particular (measured) wavefront is introduced. This concept is based on the fact that the ocular wavefront, together with the corneal topography, can be seen as the mathematical global representation of the eye working in monochromatic light and having a foveal vision. The discussed design technique, including an iterative optimization method, could be applied in any ocular correction that utilizes cornea topography and/or ocular wavefront, e.g. contact lens or intra-corneal implant. However, the application this paper refers to is the ocular refractive correction by a procedure using the LADARVISION. It consists of surgical removal and subsequent replacement of a corneal flap on a stromal surface whose shape has been changed by laser ablation of the tissue. Subsequent sections of this paper are dedicated to establishing the limits of possible refractive correction, the influences of the flap and corneal topography into the refractive correction calculation. Finally a realistic evaluation of the results and a list of possible developments of this new optical design method are discussed.

Citation Download Citation

Eugene O. Curatu, George H. Pettit M.D., and John A. Campin "Customized schematic eye model for refraction correction design based on ocular wavefront and corneal topography measurements", Proc. SPIE 4611, Ophthalmic Technologies XII, (13 June 2002); https://doi.org/10.1117/12.470591

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