Far point

Definition

The far point is the maximum distance at which an object can be seen clearly by the eye when the lens is fully relaxed. For a person with normal vision, this distance is effectively infinite.

5 Must Know Facts For Your Next Test

1. The far point for a person with normal vision is considered to be at infinity.
2. In cases of myopia (nearsightedness), the far point is closer than infinity and varies depending on the severity of myopia.
3. The position of the far point can be corrected using concave lenses in glasses or contact lenses.
4. A person's far point can be determined through an eye examination that measures visual acuity at different distances.
5. The concept of the far point helps in designing corrective lenses for people with refractive errors.

Review Questions

Related terms

Near Point:

The minimum distance at which an object can be seen clearly by the eye when the lens is fully accommodated.

Myopia: A refractive error where distant objects appear blurry because their images are focused in front of the retina.

Hyperopia:

A refractive error where close objects appear blurry because their images are focused behind the retina.