Which term containing a prefix, root, and suffix refers to an inability to focus light rays uniformly on the retina?

Question

Quizplus · Accepted Answer

"A-" is the prefix meaning "not" or "without", "stigmat-" is the root meaning "point" or "dot", and "-ism" is the suffix meaning "condition of". Astigmatism is a refractive error in which the cornea or lens is irregularly shaped, causing light rays to focus on multiple points on the retina instead of a single point, resulting in blurred vision.

Which Term Containing a Prefix, Root, and Suffix Refers to an Inability