Myopia is a condition characterized by which visual defect?

Myopia is a condition characterized by which visual defect?

• A. Farsightedness
• B. Nearsightedness
• C. Color blindness
• D. Night blindness

Answer: (B)

Distant objects appear blurry because the eye focuses images in front of the retina. This is myopia. It happens when the eyeball is a bit too long or the cornea has too much curvature, so light rays converge before reaching the retina. As a result, near objects come into clear focus while far objects are blurred. Corrective lenses with negative power (concave lenses) help by diverging light before it enters the eye, pushing the focal point back onto the retina. Management may also include contact lenses or refractive surgery. Other visual defects listed aren’t caused by this focusing error: farsightedness is the opposite issue where near objects are blurred; color blindness involves color perception; night blindness is difficulty seeing in low light due to rod function or vitamin A issues.

Distant objects appear blurry because the eye focuses images in front of the retina. This is myopia. It happens when the eyeball is a bit too long or the cornea has too much curvature, so light rays converge before reaching the retina. As a result, near objects come into clear focus while far objects are blurred. Corrective lenses with negative power (concave lenses) help by diverging light before it enters the eye, pushing the focal point back onto the retina. Management may also include contact lenses or refractive surgery. Other visual defects listed aren’t caused by this focusing error: farsightedness is the opposite issue where near objects are blurred; color blindness involves color perception; night blindness is difficulty seeing in low light due to rod function or vitamin A issues.