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Vision - Eye Parts
| Term | Definition |
|---|---|
| Cornea | clear membrane the covers eye |
| Pupil | opening where light enters (black dot) |
| Retina | layer of light-sensitive cells |
| Photoreceptor | special neuron that changes light into electrical impulses |
| Rod | black & white images |
| Cone | fine details and COLORS |
| Iris | controls amount of light entering eye; colored part |
| Lens | curved material behind iris, helps focus |
| Colorblindness | person has trouble with CONES; can't distinguish certain colors |