The change in size of an eye lens is caused by the action of the ciliary muscles.

Here are the steps explaining how it happens:

1. The ciliary muscles are a ring of smooth muscle in the eye's middle layer (vascular layer) that controls accommodation for viewing objects at varying distances and regulates the flow of aqueous humour into Schlemm's canal.

2. When the ciliary muscle contracts, it releases the tension on the lens caused by the suspensory ligaments (also known as zonular fibers).

3. This allows the lens to become more convex, increasing its power to focus light on the retina. This process is known as accommodation.

4. Conversely, when viewing distant objects, the ciliary muscle relaxes, allowing the lens to flatten and reducing its power.

5. Therefore, the ciliary muscles, by contracting and relaxing, control the shape of the lens, allowing us to focus on objects at different distances.

Question

The change in size of an eye lens is caused by the action of the ciliary muscles.

Here are the steps explaining how it happens:

1. The ciliary muscles are a ring of smooth muscle in the eye's middle layer (vascular layer) that controls accommodation for viewing objects at varying distances and regulates the flow of aqueous humour into Schlemm's canal.

2. When the ciliary muscle contracts, it releases the tension on the lens caused by the suspensory ligaments (also known as zonular fibers).

3. This allows the lens to become more convex, increasing its power to focus light on the retina. This process is known as accommodation.

4. Conversely, when viewing distant objects, the ciliary muscle relaxes, allowing the lens to flatten and reducing its power.

5. Therefore, the ciliary muscles, by contracting and relaxing, control the shape of the lens, allowing us to focus on objects at different distances.

Knowee AI · Accepted Answer

The change in size of an eye lens is caused by the action of the ciliary muscles.

Here are the steps explaining how it happens:

1. The ciliary muscles are a ring of smooth muscle in the eye's middle layer (vascular layer) that controls accommodation for viewing objects at varying distances and regulates the flow of aqueous humour into Schlemm's canal.

2. When the ciliary muscle contracts, it releases the tension on the lens caused by the suspensory ligaments (also known as zonular fibers).

3. This allows the lens to become more convex, increasing its power to focus light on the retina. This process is known as accommodation.

4. Conversely, when viewing distant objects, the ciliary muscle relaxes, allowing the lens to flatten and reducing its power.

5. Therefore, the ciliary muscles, by contracting and relaxing, control the shape of the lens, allowing us to focus on objects at different distances.

he change in size of an eye lens is caused by the action of the :–

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