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11 February 2011 An ocular prosthesis which reacts to light
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Proceedings Volume 7885, Ophthalmic Technologies XXI; 788512 (2011)
Event: SPIE BiOS, 2011, San Francisco, California, United States
The realism of an ocular prosthesis is limited by the immobility of the pupil. Our method to solve this problem is to use a liquid crystal display (LCD) to control the pupil size as a function of the ambient light. This study demonstrates the first LCD to our knowledge surviving the ocular prosthetic manufacturing steps. The dynamic pupil is controlled by a novel, entirely autonomous and self-powered passive electronic circuit using photodiodes in a high voltage configuration. Future work for a complete prosthesis with a dynamic pupil is discussed. Finally, a standard device for the mass production of ocular prostheses is presented.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Lapointe, A. Harhira, J.-F. Durette, S. Beaulieu, A. Shaat, P. R. Boulos, and R. Kashyap "An ocular prosthesis which reacts to light", Proc. SPIE 7885, Ophthalmic Technologies XXI, 788512 (11 February 2011);


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