Question

1. This part of the eye opens or closes to adjust the amount of light that...

1. This part of the eye opens or closes to adjust the amount of light that actually enters the eye. What is this?

2. If the ____________________ is mis-shaped, it may lead to myopia.

3. The ____________________ allows us to focus on something close & far away.

4. What is the cause of the blind spot you have in each eye?

5. This is the “projection screen” at the back of the eye.

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Answer #1

1. Pupil is the part of eye that opens or closes to regulate amount of light entering the eye.

2. Eye ball. If it's shape is improper that can lead to defects of eye.

3. Eye lens allows us to focus on nearby and far objects. This is called power of accommodation.

5.blind spot is the part of eye from which optic nerve and blood vessels emerge. There are no photoreceptor cells in this area so no image can form in this area. That's why it is called blind spot.

5. Retina is projection screen at the back of the eye.

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