Question

Hypermetropia is a condition where a person has difficulty seeing nearby objects clearly. To correct this, the person uses glasses with a power of +5 diopters. What is the cause of hypermetropia?

1) The eyeball is shorter than normal
2) The cornea or lens is not properly curved
3) The muscles of the eye are not functioning properly
4) The retina is damaged

Answer 1

Hypermetropia, or farsightedness, is caused by the eyeball being too short or the lens being insufficiently curved, making close objects appear blurry. Corrective glasses with converging lenses of +5 diopters are used to correct this by adjusting the focal point onto the retina.

Step-by-step explanation:

Hypermetropia, also known as farsightedness or hyperopia, is a vision condition where a person has difficulty seeing nearby objects clearly. The cause of hypermetropia is that the light entering the eye does not focus directly on the retina. Instead, it focuses behind it, commonly due to the fact that the eyeball is shorter than normal or because the lens is not sufficiently curved. Corrective glasses with a power of +5 diopters suggest that the person is using converging lenses to adjust the focal point so that images fall correctly on the retina, enabling sharper near vision.