Why is the eye not like a camera?

If we have such a small focus how can we see such a large range?

Out of the two adaptions to changing light conditions which is the fastest?

What is field adaption?

Describe the process of bleaching.

What type of receptor make up our peripheral vision and what type make up our fovea?

What type of receptor make up our peripheral vision and what type make up our fovea?

What is the blind spot called in our eye? what causes it?

What is the point where we best see and where the majority of receptors are located?

When light passes thought the eye to the retina what does it pass through?

What is being long sighted called and what does this mean in relation to where the light falls and the length of the eye. What lens would you need to fix this?

What is being short sighted called and what does this mean in relation to where the light falls and the length of the eye. What lens would you need to fix this?

What is the smallest distance we can see called?

Relaxing your ciliary muscles causes your lens to become ____. Contracting these muscles causes your lens to become ____.

What eye muscles control the movement of the lens?

In healthy people what is the purpose of light refraction?

Where do all arteries and veins enter or leave the eye?