The shape of the lens in our eyes changes due to the action of the ciliary muscles. This process is known as accommodation.

1. For near vision: When we need to focus on a close object, the ciliary muscles contract. This contraction reduces the tension on the suspensory ligaments holding the lens in place, allowing the lens to become more rounded. This increases the refractive power of the lens, enabling us to focus on the near object.

2. For far vision: When we need to focus on a distant object, the ciliary muscles relax. This relaxation increases the tension on the suspensory ligaments, causing the lens to become more flattened. This decreases the refractive power of the lens, enabling us to focus on the distant object.

This ability of the eye to adjust its focus from distant to near objects is what allows us to see objects clearly at various distances.

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The shape of the lens in our eyes changes due to the action of the ciliary muscles. This process is known as accommodation.

1. For near vision: When we need to focus on a close object, the ciliary muscles contract. This contraction reduces the tension on the suspensory ligaments holding the lens in place, allowing the lens to become more rounded. This increases the refractive power of the lens, enabling us to focus on the near object.

2. For far vision: When we need to focus on a distant object, the ciliary muscles relax. This relaxation increases the tension on the suspensory ligaments, causing the lens to become more flattened. This decreases the refractive power of the lens, enabling us to focus on the distant object.

This ability of the eye to adjust its focus from distant to near objects is what allows us to see objects clearly at various distances.

Knowee AI · Accepted Answer

The shape of the lens in our eyes changes due to the action of the ciliary muscles. This process is known as accommodation.

1. For near vision: When we need to focus on a close object, the ciliary muscles contract. This contraction reduces the tension on the suspensory ligaments holding the lens in place, allowing the lens to become more rounded. This increases the refractive power of the lens, enabling us to focus on the near object.

2. For far vision: When we need to focus on a distant object, the ciliary muscles relax. This relaxation increases the tension on the suspensory ligaments, causing the lens to become more flattened. This decreases the refractive power of the lens, enabling us to focus on the distant object.

This ability of the eye to adjust its focus from distant to near objects is what allows us to see objects clearly at various distances.

The shape of the lens changes for near or far vision due to the action of the body.

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