Concept:Myopia is a refractive eye defect in which light rays fail to focus exactly on the retina, making distant objects appear blurry.
Explanation:In a normal eye, light rays are focused precisely on the retina to produce clear vision.
In myopia, the eyeball is too long, or the cornea is too curved.
This causes incoming parallel rays to converge before reaching the retina.
So the image formed is in front of the retina, not on it.
A myopic person can see close objects clearly, but distant objects look blurred.
Glaucoma relates to pressure inside the eye, cataracts involve clouding of the lens, and astigmatism results from an irregular cornea.
Only myopia directly describes the inability of the eye to focus light on the retina.
Answer:B. Myopia