More cards in this set

What do they do?

What's the retina?

They detect changes in ___ and convert it to ___

The optic nerve leads away from the eye. It carries ___ from the retina

Why is it important to limit light that enters eye?

Why is it important to let as much light in a possible when it's dark?

What controls how much light gets in eye?

What happens to eye in bright conditions?

Muscles work in pairs, when one contracts, the other relaxes. So what would the muscles do in dark conditions?

What two parts of the eye are involves in focusing?