Question
Difference between
Near point and far point
Near point and far point
| Near point | Far point |
| 1. The minimum distance at which the object can be seen clearly without contraction of eye lens is called the near point of an eye. | 1. The farthest distance upto which the eye can see objects clearly is called far point of an eye. |
| 2. For young adult with normal vision, this value is 25 cm . | 2. For young adult with normal vision, this value is infinite. |
| 3. For a person having defect of far-sightedness value of the near point is at a distance more than 25 cm . | 3. For a person having defect of near-sightedness value of the far point is at a distance less than infinite distance. |
| 4. For a person having defect of far-sightedness value of the near point is obtained at a distance of 25 cm using convex lens of appropriate focal length. | 4. For a person having defect of near-sightedness value of the far point is obtained at distance of infinite distance using concave lens of appropriate focal length. |
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