Jake is nearsighted, and his cousin Janelle is farsighted. Their visual problems are caused by the fact that:
A) images are not properly focused on the retina.
B) the cornea is clouded due to age or disease.
C) the size of the blind spot has increased.
D) the pupil no longer dilates in dim light.

Question

Quizplus · Accepted Answer

Nearsightedness and farsightedness are both refractive errors caused by the improper focusing of light on the retina. In nearsightedness, the eyeball is too long or the cornea is too curved, causing images to be focused in front of the retina. In farsightedness, the eyeball is too short or the cornea is too flat, causing images to be focused behind the retina.

Jake Is Nearsighted, and His Cousin Janelle Is Farsighted