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Advan. Physiol. Edu. 272: 15S-18S, 1997;
1043-4046/97 $5.00
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Advances in Physiology Education, Vol 272, Issue 6 15-S18, Copyright © 1997 by American Physiological Society

ARTICLES

A simple analog of visual field retinal projection

A. Eblen-Zajjur
Facultad de Ciencias de la Salud, Universidad de Carabobo, Valencia, Venezuela.

Basic biophysical principles of the eye, such as the retinal projection of the visual field, bidimensional image inversion, blind point determination, visual field and retinal quadrants, perimetric principles, and determination of scotoma, are seen on a working anatomic model of the eye and its visual field that can easily be constructed at very low cost and from easily obtained materials: an opaque glass globe, a styrofoam hemisphere, a wood screen, bulbs, sockets, wire, and switches. This model has been used for many years in our undergraduate medical physiology courses and has replaced the classical model of candle image inversion by a converging lens.




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