| retina | the light-sensitive membrane covering the back wall of the eyeball |
|---|---|
| retina | either of two yellow to red retinal pigments formed from Rhodopsin by the action of light |
| retina | in or relating to the retina of the eye |
| retina | visual receptor cell sensitive to color |
| retina | visual impairment resulting from the retina becoming separated from the choroid in the back of the eye |
| retina | a red photopigment in the retinal rods of vertebrates |
| retina | visual receptor cell sensitive to dim light |