Material processing application of femtosecond laser to improve optical defects of the human eye

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Supervisor:
Dr. Szlávecz Ákos
Department of Control Engineering and Information Technology

In my studies I worked on the optical modeling of the human eye and planning of multifocal intraocular lenses. First of all I checked the biomedical engineering side of the topic, collected informations about the anatomy and the optometric surgeries of the human eye. I built up some of the well-known eye models in the opticstudio and compared the results. I found that the finite Liou-Brennan eye model is a suitable base for create the advanced eye model for my further experiments.

Biometric data based on measurement of patients’ eyes was available for us in this project. I calculated the basic statistical parameters of this dataset and applied the results to validate my eye model with. This experiment verified that the designed model works fine with real geometric parameters. After I had the appropriate eye model I worked on the development of the multifocal artificial lens. The idea behind is rely on the diffractive nature of the light, the intensity of the diffractive orders in focus should be maximized while the intensity of the other orders should be minimized. Finally I checked the laser technologies that can be applied in lens manufacturing.

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