2 doctors weighed in:

How is farsightedness corrected by lenses?

2 doctors weighed in
Dr. Joseph Barakeh
Ophthalmology
1 doctor agrees

In brief: Convex lens

The farsighted (hyperopic) eye is too short.
The rays of light entering the eye are not bent sharply enough to converge and form an image on the retina; rather, the image is formed behind the retina. A convex lens (shaped like a magnifying glass) adds some light-bending so the rays are bent more sharply, and the image is formed on the retina. A picture of this is much clearer.

In brief: Convex lens

The farsighted (hyperopic) eye is too short.
The rays of light entering the eye are not bent sharply enough to converge and form an image on the retina; rather, the image is formed behind the retina. A convex lens (shaped like a magnifying glass) adds some light-bending so the rays are bent more sharply, and the image is formed on the retina. A picture of this is much clearer.
Dr. Joseph Barakeh
Dr. Joseph Barakeh
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