This image may not be used in educational posters Correction of long sightedness. Computer artwork showing a convex lens placed in front of an eye to

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This image may not be used in educational posters Correction of long sightedness. Computer artwork showing a convex lens placed in front of an eye to treat long sightedness. In long sightedness the eyeball is shorter than it should be and light is focused behind the retina, causing difficulty focussing on near objects. The convex lens causes light passing through it to converge, and therefore focus closer than normal.

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Size: 4997px × 3498px
Photo credit: © RUSSELL KIGHTLEY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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