Scientific Instruments > Teaching Instruments

Fisher Schematic Eye Viewer for Teaching Ophthalmology

Item#: STI1272

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Fisher Schematic Eye Viewer for Teaching Ophthalmology - click to enlarge.Fisher Schematic Eye Viewer for Teaching Ophthalmology - click to enlarge.

Early 20th Century brass barrel-shaped viewer on a cast iron stand, with lens and a diaphragm like shutter for viewing disc simulations of the interior of the eye. The viewer has a lens to represent the crystalline lens of the human eye, and a diaphragm shutter to represent the iris that when fully open represents a pupil of 30 millimeters. A retina simulation disc can be put into the viewer, and then the student with an ophthalmoscope can look inside the viewer as if looking into an eye.
The cast iron base is marked Schematic Eye Designed by WA Fisher MD. Overall height 11.5 cm (4.5 inches)