Correction of short sightedness. Computer artwork showing a concave lens placed in front of an eye to treat short sightedness. In short sightedness the eyeball is longer than it should be and light is focused in front of the retina,causing difficulty focussing on distant objects. The concave lens causes light passing through it to diverge,and therefore focus further than normal | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Kightley, Russell |
Bildgröße: | 4997 px × 3498 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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