retinal
/ˈrɛtɪnəl/
adjective
- Relating to the retina, the light-sensitive layer at the back of the eye.
- She had retinal surgery to repair a tear in her eye.
- The doctor examined the retinal blood vessels for signs of disease.
- Retinal damage can occur from staring directly at the sun.
noun
- A chemical compound derived from vitamin A that is essential for vision, also called retinaldehyde.
- Retinal combines with proteins to form visual pigments in the eye.
- The body converts beta-carotene into retinal for night vision.
- Scientists study how retinal changes shape when light hits it.