27 November 1984 Active Optical Focusing Of The Laser Scanner Ophthalmoscope
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Abstract
Recently a new method of retinal imaging by laser scanning ophthalmoscopy was developed that overcomes the intensity problem of conventional fundus photography and promises further advantages. The laser scanning ophthal-moscope has been modified by incorporating an adaptive optical feedback system for laser beam control. For wave-front reconstruction maximum likelihood methods and the Gerchberg-Saxton-algorithm are applied. The system essentially provides an elimination of optical eye aberrations which diminish the fundus image quality. On the other hand by active focus control and/or wavefront sensing the aberrations of the human eye like astigmatism of the cornea and spherical aberration of the lens can be measured.
© (1984) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Bille, J. Bille, G. Jahn, G. Jahn, A. Dreher, A. Dreher, } "Active Optical Focusing Of The Laser Scanner Ophthalmoscope", Proc. SPIE 0498, Laser Scanning and Recording, (27 November 1984); doi: 10.1117/12.944523; https://doi.org/10.1117/12.944523
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