Model demonstrating different types of eye sight, Europe, 1880-1900
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The branch of medicine dealing with the diseases and surgery of the visual pathways (usually the eyes or the brain).
Glossary: model - representation
Use for a scaled representation of an object or structure, usually three-dimensional. The item is often idealised or modified to make it conceptually easier to understand.
A defect of the eye where images are produced in front of the retina rather than on it. This causes object that are close to the viewer to appear blurred. Usually treated with glasses or corrective surgery.
A defect of the eye where images are produced behind the retina rather than on it. This causes objects that are further away from the viewer to appear blurred. Long-sightedness is usually treated with glasses or corrective surgery.
A spectacle lens that is used for both long and short sight.