Four patients with myopic anisometropia underwent Excimer laser photorefractive keratectomy (PRK) on the eye with higher myopia, to correct refractive error. The change in refractive power six months after PRK averaged, +4.3D. The difference of refractive power between fellow eyes changed from 5.8D to 1.5D. Corrected visual acuity remained at the same level as before PRK, while unaided vision improved vastly. Contrast sensitivity decreased from the first month until the third month following PRK, recovering to its inital level six months after PRK. As well corneal subepithelial opacity disappeared.

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