Which lenses are used to correct hyperopia (farsightedness)?

Which lenses are used to correct hyperopia (farsightedness)?

• A. Convex lenses
• B. Concave lenses
• C. Intraocular lens (IOL)
• D. Ocular prosthesis

Answer: (A)

Hyperopia happens when light is focused behind the retina, usually because the eye's focusing power is too weak or the eyeball is too short. To bring objects into focus on the retina, you need to add converging power before the eye’s lens. Convex lenses provide that positive refractive power, bending incoming light inward so the eye can form a clear image on the retina. That is why they’re used to correct farsightedness in glasses or contact lenses. Concave lenses, by contrast, diverge light and would push the focal point farther behind the retina, which worsens hyperopia and is used for myopia instead. An intraocular lens can correct refractive errors inside the eye in certain surgical scenarios, but the standard corrective approach for hyperopia is convex lenses. An ocular prosthesis is an artificial eye and does not serve as a corrective lens.

Hyperopia happens when light is focused behind the retina, usually because the eye's focusing power is too weak or the eyeball is too short. To bring objects into focus on the retina, you need to add converging power before the eye’s lens. Convex lenses provide that positive refractive power, bending incoming light inward so the eye can form a clear image on the retina. That is why they’re used to correct farsightedness in glasses or contact lenses.

Concave lenses, by contrast, diverge light and would push the focal point farther behind the retina, which worsens hyperopia and is used for myopia instead. An intraocular lens can correct refractive errors inside the eye in certain surgical scenarios, but the standard corrective approach for hyperopia is convex lenses. An ocular prosthesis is an artificial eye and does not serve as a corrective lens.