Astigmatism, a condition in which a defect in the curvature of the cornea or lens produces areas of blurred vision, is an example of a recessive trait.

Question

Quizplus · Accepted Answer

Astigmatism is not a genetic trait determined by simple Mendelian inheritance (dominant or recessive); it is a common refractive error related to the shape of the cornea or lens, not directly caused by genetic factors.

Astigmatism, a Condition in Which a Defect in the Curvature