what is meant by power of accommodation of the eye?

The power of accommodation of the eye is the ability of the eye lens to change its focal length so that objects at different distances can be seen clearly.

When we look at a nearby object, the eye lens becomes thicker to focus the image on the retina. When we look at a distant object, the lens becomes thinner. This adjustment is controlled by the ciliary muscles.

Key Points:

1. Helps the eye focus on both near and distant objects.

2. Involves changes in the curvature of the eye lens.

3. Keeps the image focused on the retina.

4. Decreases with age, leading to conditions such as presbyopia.

Example:

When you shift your gaze from a book to a distant building, your eye automatically adjusts the lens to maintain a clear image.

In simple terms: The power of accommodation is the eye's ability to adjust its lens and focus clearly on objects at different distances.