Astigmatism is best described as a condition that causes?

Astigmatism is best described as a condition that causes?

• A. Clouding of the lens
• B. Double vision
• C. Increased intraocular pressure
• D. Defective curvature of the cornea or lens of the eye, causing images to appear blurry and stretched

Answer: (D)

Astigmatism happens when the cornea or lens has an irregular, uneven curvature, so light rays aren’t focused to a single point on the retina. Instead, light can focus at different points along different meridians, making images appear blurry and stretched. This specific refractive error is what defines astigmatism. Clouding of the lens describes cataracts, which dull or hazy vision due to opacity. Increased intraocular pressure relates to glaucoma, affecting the optic nerve. Double vision can occur from eye misalignment or other issues, but it isn’t the hallmark of astigmatism. So the description that fits astigmatism is the defective curvature of the cornea or lens causing blurry, stretched images.

Astigmatism happens when the cornea or lens has an irregular, uneven curvature, so light rays aren’t focused to a single point on the retina. Instead, light can focus at different points along different meridians, making images appear blurry and stretched. This specific refractive error is what defines astigmatism. Clouding of the lens describes cataracts, which dull or hazy vision due to opacity. Increased intraocular pressure relates to glaucoma, affecting the optic nerve. Double vision can occur from eye misalignment or other issues, but it isn’t the hallmark of astigmatism. So the description that fits astigmatism is the defective curvature of the cornea or lens causing blurry, stretched images.