Fundus photographic technique to determine eye refraction...

Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type

Reexamination Certificate

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Reexamination Certificate

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06854846

ABSTRACT:
The determination of magnification in an ophthalmic fundus camera image is achieved by detecting the focusing mechanism position, and using a calibration function to calculate the magnification from the focus position.

REFERENCES:
patent: 4265518 (1981-05-01), Matsumura
patent: 4331132 (1982-05-01), Mukasa
patent: 4372655 (1983-02-01), Matsumura et al.
patent: 5250966 (1993-10-01), Oda et al.
patent: 5446509 (1995-08-01), Okinishi
patent: 5830147 (1998-11-01), Feke et al.
patent: 5867249 (1999-02-01), Ichiki et al.
patent: 5871439 (1999-02-01), Takahashi et al.
patent: 59097276 (1984-06-01), None
Bengtsson, Bo et al., Correction of optic disc measurements on fundus photographs, Graefe's Arch Clin. Esp Ophthalmol (1992)230:24-28.
Jonas, Jost B. et al., Ranking of Optic Disc Variables for Detection of Glaucomatous Optic Nerve Damage, Investigative Ophthalmology & Visual Science, Jun. 2000, vol. 41, No. 7, 1764-1773.
Bengtsson, Bo et al., Some essential optical features of the Zeiss fundus camera, Acta Ophthalmologica (1977) vol. 55. 123-131.
Chauhan, Balwantray, C., Confocal scanning laser tomography, Can J. Ophthalmol (1996) vol. 31, No. 3, 152-156.
Quigley, Michael G., A New Fundus Camera Technique to Help Calculate Eye-Camera Magnification, Arch Ophthalmol, May 2003, vol. 121, 707-709.
Heidelberg Retina Tomograph II, Operating Instructions book, Software Version 1.6, Revision 1.6-2E, May 2001, Heidelberg Engineering GmbH 2001, Germany.
The Heidelberg Retina Tomograph II brochure, Heidelberg Engineering GmbH, Germany, May 2001.
Phelps, Charles D. Glaucoma: General Concepts, Clinical Ophthalmology, vol. 3,Chap 42, pp 1-8, 1991.
Papastathopoulos, K.I. et al., Ophthalmoscopic assessment of the size of the optic nerve papilla, Klin Monatsbl Augenheilkd. Nov. 1997; 211(5):291-5.
Quigley, M.G., Visual Fields, Psychophysics, and Electrophysiology III Poster Presentation May 1, 2000, Hall A, IOVS, published abstract Mar. 15, 2000, vol. 41, No. 4, S290.

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