Corrective lenses The simplest form of treatment for<unk>  is the use of corrective lenses, i.e. eyeglasses or contact lenses. Eyeglasses used to correct<unk>  have convex lenses. Surgery There are also surgical treatments for<unk> : Laser procedures * Photorefractive keratectomy (PRK): This is a refractive technique that is done by removal of a minimal amount of the corneal surface. Hyperopic PRK has many complications like regression effect, astigmatism due to epithelial healing, and corneal haze. Post operative epithelial healing time is also more for PRK. * Laser assisted in situ keratomileusis (LASIK): Laser eye surgery to reshape the cornea, so that glasses or contact lenses are no longer needed. Excimer laser LASIK can correct hypermetropia up to +6 diopters. LASIK is contraindicated in patients with lupus and rheumatoid arthritis. * Laser epithelial keratomileusis (LASEK): Resembles PRK, but uses alcohol to loosen the corneal surface. * Epi-LASIK: Epi-LASIK is also used to correct hyperopia. In this procedure, use of epikeratome eliminates the use of alcohol. * Laser thermal keratoplasty (LTK): Laser thermal keratoplasty is a laser based non-destructive refractive procedure used to correct hyperopia and presbyopia. It uses Thallium-Holmium-Chromium (THC): YAG laser. IOL implantation * Ahakia correction: High degree hypermetropia due to absence of lens (aphakia) is best corrected using intraocular lens implantation. * Refractive lens exchange (RLE): A variation of cataract surgery where the natural crystalline lens is replaced with an artificial intraocular lens; the difference is the existence of abnormal ocular anatomy which causes a high refractive error. * Phakic IOL: Phakic intraocular lens are lenses that implanted inside eye without removing the normal crystalline lens. Phakic IOLs can be used to correct hypermetropia up to +20 diopters. Non laser procedures * Conductive keratoplasty (CK): Conductive keratoplasty is a non laser refractive procedure used to correct presbyopia and low hypermetropia (+0.75D to +3.25D) with or without astigmatism (up to 0.75D). It uses radiofrequency energy to heat and shrink corneal collagen tissue. CK is contraindicated in pregnant/breastfeeding women, central corneal dystrophies and scarring, history of herpetic keratitis, type 1 diabetes etc. * Automated lamellar keratoplasty (ALK): Hyperopic automated lamellar keratoplasty (H-ALK) and Homoplastic ALK are ALK procedures that corrects low to moderate hyperopia. Poor predictability and the risk of complications limits usefulness of these procedures. * Keratophakia and epi-keratophakia are another two non laser surgical procedures used to correct hypermetropia. Keratophakia is a surgical technique developed by Barraquer for treating high hypermetropia and aphakia. Poor predictability and induced irregular astigmatism are complications of these procedures.
Far-sightedness
Amblyopia
Tunnel vision
Optic neuritis
Blurred vision
Retinitis pigmentosa
Blurred Vision
Underwater vision