Nearsightedness is Caused by A(n)_____

Question

Nearsightedness is caused by a(n)_____  
A) eye structure that focuses an image in front of the retina
B) eye structure that focuses an image behind the retina
C) eyeball that is too short
D) recessive trait on the Y chromosome
E) recessive trait on the X chromosome

Accepted Answer

Nearsightedness, or myopia, occurs when the eye structure focuses the image in front of the retina rather than on it. This can be caused by the cornea having too much curvature, the eye being too long, or the lens being too thick.