If a person has been prescribed eyeglasses with uneven lenses it is most likely to correct for that person:

Question

Quizplus · Accepted Answer

Uneven lenses in eyeglasses are a common correction for those with astigmatism, which is a condition where the cornea is unevenly curved. This can result in blurry or distorted vision, particularly when looking at objects at certain angles. Uneven lenses can help to compensate for this uneven curvature and provide clear and undistorted vision. Nearsightedness and farsightedness typically require lenses that are the same power in both eyes. Crossed eyes may be corrected with special prism lenses, but not necessarily with uneven lenses.

If a Person Has Been Prescribed Eyeglasses with Uneven Lenses