In which refractive disorder do the refractive surfaces of the eye have unequal curvatures that create visual distortion?
a. astigmatism c. myopia
b. hyperopia d. strabismus
A
Refractive errors, the incorrect bending of light rays to focus on the retina, result in changes in visual acuity. When the refractive surfaces of the eye have unequal curvatures that create visual distortion, it is considered astigmatism. This is corrected by prescription lenses or contact lenses, which bend the light rays correctly on the retina.
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