Across
- 1. The black circular opening in the center of the iris through which the light enters the eye.
- 4. Photoreceptor cells in the retina that are highly sensitive to low light levels and are important for night vision.
- 6. The transparent, flexible structure behind the iris that focuses light onto the retina.
- 8. A small depression in the retina where visual acuity is highest, containing a high concentration of cone cells.
- 9. The cranial nerve that transmits visual information from the retina to the brain.
- 11. The light-sensitive layer of tissue at the back of the eye that converts light into electrical signals sent to the brain.
- 12. The clear fluid between the cornea and the lens.
- 13. Photoreceptor cells in the retina that detect color and are responsible for vision in bright light.
- 14. The muscles that control the shape of the lens to focus light onto the retina for clear vision.
- 15. The vascular layer of the eye between the retina and the sclera that supplies blood to the retina.
Down
- 2. The colored part of the eye that controls the size of the pupil and the amount of light that enters the eye.
- 3. The transparent frontal part of the eye that covers the iris and pupil.
- 5. The 6 muscles surrounding the eye that control its movement in different directions.
- 7. The white, outer layer of the eye that provides protection and structure.
- 10. The clear gel-like substance filling the space between the lens and the retina, maintaining the eye's shape.