In _____, an abnormally curved eyeball results in blurry vision for lines in a particular direction.
A) presbyopia
B) astigmatism
C) myopia
D) hyperopia

Question

Quizplus · Accepted Answer

Astigmatism is a visual condition where the front surface of the eye (cornea) is not perfectly round, resulting in distorted or blurry vision. This occurs because the curvature of the cornea varies in different meridians, making it difficult for the eye to focus light rays to a single point on the retina. As a result, images may appear blurred or distorted, especially those that are oriented in a particular direction. Presbyopia is a natural aging process that affects the eye's ability to focus on close objects, myopia is nearsightedness, and hyperopia is farsightedness. None of these conditions involve the abnormal curvature of the eyeball that characterizes astigmatism.

In _____, an Abnormally Curved Eyeball Results in Blurry Vision