Myopia (Nearsightedness) When the eyeball is too long from front to back, light rays focus in front of, rather than on, the retina. Under these circumstances, near objects are perceived clearly, but distant objects are not. OTHER EYE DISORDERSOTHER EYE DISORDERSOther Eye Disorders Allergic DermatitisAstigmatismBacterial ConjunctivitisBasal Cell Carcinoma (Eyelid Cancer)BlepharitisBranch Vein OcclusionsCentral Vein OcclusionsChalazionCorneal AbrasionsDermatochalasisDiabetic RetinopathyDry EyeEctropian/EntropianEye Care Facts and MythsFlashes and FloatersFuchs' DystrophyGlaucomaHerpes Simplex EyeHyperopia (Farsightedness)IritisKeratoconusLaser IridotomyMacular DegenerationMigraine DisordersMyopia (Nearsightedness)Ophthalmic LaserPingueculaPresbyopiaPterygiumPtosisRetinal DetachmentStrabismusStyeSubconjunctival HemorrhageTrichiasisUveitisViral ConjunctivitisVitamins and Your EyesWhat is a Visual Field? View Video