Topic summary
Refractive errors
Extracted from the Wikipedia article Refractive error.
Refractive errors are corrected with eyeglasses, contact lenses, or surgery. Eyeglasses are the easiest and safest method of correction. Contact lenses can provide a wider field of vision; however they are associated with a risk of infection. Refractive surgery may consist of either permanently changing the shape of the cornea or, alternatively, implanting intraocular lenses.