(Short Answer Type Questions)
Define the term power of accommodation of an human eye. What
is the near point and far point of a normal human eye?
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An ability of the eye lens to adjust its focal length is called the power of accomodation. For normal eye, it is infinity.
The minimum distance upto which the eye is able to see objects clearly without strain is called the near point of the eye. For normal eye, it is 25 cm.
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Answer:
1. The power of accommodation of the Human Eye is a property of the eye to change its focal length depending on the distance of the object from the eye.
2. For an ideal Human eye, the near point of the eye is 25 cm, and the far point of the eye is infinity.
3. This is only for an ideal eye. For normal eyes, the near and far points will vary depending on the condition of the lens and the ciliary muscles of the eye.
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