This model can be used to demonstrate the optical functions of the eye, e.g. representation of an object on the retina, accommodation (change in the lens curvature), short-sightedness and far-sightedness.

The model comprises:
• Half eyeball with adjustable iris diaphragm, lens holder and 2 convex lenses (f = 65 mm and 80 mm), on a rod
• Half eyeball with retina (transparent screen), on a rod
• Lens holder with one concave and one convex corrective lens, on a rod
• Candle holder with 2 candles, on a rod
• Aluminium rail, 50 cm long, with 4 clamp slides
• Storage case

Measurements: 49x5,5x18 cm
Weight: 2,0 kg