Question

How does concave lens correct myopia?

• A. Increases the curvature of the eye lens
• B. Forms the image of the object at the retina
• C. Decreases the elongation of the eyeball
• D. All of the above

Answer 1

The correct option is B Forms the image of the object at the retina

A person with myopia cannot see distant objects clearly since the far point for that person is nearer than infinity. Such a person may see clearly up to a distance of a few meters. In this condition, the image of a distant object is formed in front of the retina and not at the retina itself. A concave lens of suitable power will bring the image back on to the retina and thus the defect is corrected.