Errors Of Refraction

Year Published: 1967

Creator: Northwestern Univ Medical School

Format: 16mm

Sound: sound

Description: Uses animation to represent the effect of light rays passing through prisms and convex and concave spheres and cylinders, shows the formation of an image on the retina in a normal eye and the accommodation for near objects. Demonstrates the effect of presbyopia, hyperopia, myopia and astigmatism and their correction with lenses.

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