Accommodation for near vision requires:

1. flattening of the lens.

2. contraction of the ciliary muscles.

3. activation of the sympathetic nervous system.

4. increased rounding of the cornea.

5. dilation of the pupil.

Question

Biology

Eduardo Pacheco

16 January, 08:30

Accommodation for near vision requires:

1. flattening of the lens.

2. contraction of the ciliary muscles.

3. activation of the sympathetic nervous system.

4. increased rounding of the cornea.

5. dilation of the pupil.

+2

Answers (1)

Know the Answer?

Esmeralda Craig · Answer 1

The answer is option 2. Contraction of the ciliary muscles.

Explanation:

The ciliary muscles surround and hold the lens in place. The ciliary muscle is a essential part of the eye that contribute to vision. They control near and far vision. In near (i. e to see closer object) vision they contract to thicken the lens (relaxes to a more curved shape). This increases the refractory power to accomodate for viewing of close object.

Accommodation for near vision requires:1. flattening of the lens.2. contraction of the ciliary muscles.3. activation of the sympathetic nervous system.4. increased rounding of the cornea.5. dilation of the pupil.

Accommodation for near vision requires:

1. flattening of the lens.

2. contraction of the ciliary muscles.

3. activation of the sympathetic nervous system.

4. increased rounding of the cornea.

5. dilation of the pupil.