Question

An eye defect in which one cannot distinguish between vertical and horizontal lines is called 

Options

• Myopia

• Astigmatism

• Trachoma

• Glaucoma

Answer 1

An eye defect in which one cannot distinguish between  vertical and horizontal lines is called Astigmatism

Explanation:

Astigmatism is an imperfection in the curvature of your  cornea - the clear, round dome covering the eye's iris  and pupil - or in the shape of the eye's lens. Normally, the cornea and lens are smooth and curved equally in all directions, helping to focus light rays sharply onto  the retina at the back of your eye.