The eye

4. A type of photoreceptor cell in the retina. They are sensitive to light levels and help give us good vision in low light.
7. The nerve that carries visual information from the eye to the brain.
10. The white outer layer of the eyeball, helps maintain your eyeball's shape and protects it from injury.
11. A ring of tissue that encircles the lens and change the shape of your lens while your eye is focusing.
12. Region that the blood vessels enter the eyes. It lacks photoreceptor cells (rods and cones) in the retina so the light falling at this spot does not form any image.
13. focuses light on the back of the eye, on a layer called retina. So, it forms an inverted image of the object at the retina.
16. The clear, jelly-like substance that fills the back part of the eye.
17. The light-sensitive layer of tissue at the back of the eyeball. Inverted images that come through the eye's lens are focused on this area. The area then converts these images to electric signals and sends them along the optic nerve to the brain.
18. Type of lens in the eye

1. A type of photoreceptor cell in the retina. They give us our color vision.
2. A protective layer covering the front of the eye.
3. The process of adjusting the focus of the eye.
5. Provides protection and lubrication of the eye by the production of mucus and tears.
6. The part of the eye responsible for controlling the amount of light entering.
8. Another name for yellow spot
9. colored part of the eye.
11. Transparent front part of the eye.
14. A small area of the retina that contains the highest concentration of photoreceptors.
15. The opening in the center of the iris.