| Answer | Crossword Clue |
|---|---|
| rhodopsin | visual purple, a pigment in the eye |
| rhodopsins | RHODOPSIN, visual purple, a pigment in the eye |
| porphyropsin | a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin |
| porphyropsins | PORPHYROPSIN, a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin |
| aniseikonia | a visual condition where image, shape, and size differ in each eye |
| aniseikonias | ANISEIKONIA, a visual condition where image, shape, and size differ in each eye |
