Astigmatism is characterized by which of the following?

Astigmatism is characterized by which of the following?

• A. Regular Curvature Of The Cornea Causing Single Focal Planes.
• B. Irregular Curvature Of The Cornea Or Lens Causing Multiple Focal Planes.
• C. Inability To Focus Due To Lens Opacity.
• D. Age-Related Loss Of Accommodation.

Answer: (C)

Astigmatism happens when the cornea or lens isn’t perfectly curved, so light is bent differently in different meridians. This unequal bending means light rays don’t all come to a single sharp point on the retina, but form more than one focal point or plane, leading to blurred or distorted vision at all distances. That’s why the description involving irregular curvature of the cornea or lens and multiple focal planes fits best. The other options point to other eye problems: a lens opacity causes cataract-related blur, and aging of the lens’ ability to focus up close is presbyopia.

Astigmatism happens when the cornea or lens isn’t perfectly curved, so light is bent differently in different meridians. This unequal bending means light rays don’t all come to a single sharp point on the retina, but form more than one focal point or plane, leading to blurred or distorted vision at all distances. That’s why the description involving irregular curvature of the cornea or lens and multiple focal planes fits best. The other options point to other eye problems: a lens opacity causes cataract-related blur, and aging of the lens’ ability to focus up close is presbyopia.