Analysis of the Optical Effects in the Eccentric Lenses Applied with the Myopic Gullstrand Schematic Model Eye: A Ray Tracing Approach without Paraxial Approximation

서지정보

· 발행기관 : 대한시과학회
· 수록지 정보 : 대한시과학회지 / 27권 / 1호 / 29 ~ 40페이지
· 저자명 : 구본엽, 이명희, 김영철

초록

Purpose : This study aimed to analyze the optical effects with eccentric lenses applied to the Gullstrand schematic model eye, under myopic conditions.
Methods : The Gullstrand schematic model eye was precisely designed using a 3D simulation program. A ray tracing technique, providing accurate analysis without paraxial approximations, was employed to precisely investigate changes in the focal length and refractive power induced by eccentric lenses.
Results : The effects of eccentric lenses was analyzed on focal distance, refractive variations, and optical path differences with a particular focus on parallel rays incident at a specific height from the central axis. As the incident ray height of the rays became extremely large, the effect of eccentricity decreased, and the foci of the emitted rays were located at points close to each other. The total refractive power, which includes the refractive power of the lens and eye, and the prism refractive power effect due to eccentricity, changed greatly as the incident height of the rays decreased.
Conclusion : The findings of this study provide valuable insights into the design and prescription of eccentric lenses for the correction of ocular alignment anomalies, such as strabismus and heterophoria. Additionally, it is expected to ensure optimal visual performance for users by minimizing non-linear optical effects caused by eccentric lenses.

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