Biomaterial Database

[Current state of refractive surgery of the cornea and lens]. 2013

M C Knorz

FreeVis LASIK Zentrum, Universitätsmedizin Mannheim, Theodor Kutzer Ufer 1-3, 68167, Mannheim, Deutschland. knorz@eyes.de

Refractive surgery includes all procedures which are primarily targeted at changing the refractive power of the eye. Currently laser-assisted in situ keratomileusis (LASIK) is indicated to correct myopia of up to - 8 D, hyperopia up to + 3 D and astigmatism up to 5 D. Photorefractive keratectomy (PRK) and laser epithelial keratomileusis (LASEK) are primarily recommended for myopia up to - 6 D and for greater refractive errors, phakic intraocular lenses (IOL) are the first choice (myopia greater than - 6 D and hyperopia greater than + 3 D). If presbyopia is present in addition to the high refractive error, refractive lens exchange is another alternative.

UI	MeSH Term	Description	Entries
D012030	Refractive Errors	Deviations from the average or standard indices of refraction of the eye through its dioptric or refractive apparatus.	Ametropia,Refractive Disorders,Ametropias,Disorder, Refractive,Disorders, Refractive,Error, Refractive,Errors, Refractive,Refractive Disorder,Refractive Error
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D054120	Phakic Intraocular Lenses	Lenses, generally made of plastic or silicone, that are implanted into the eye in front of the natural EYE LENS, by the IRIS, to improve VISION, OCULAR. These intraocular lenses are used to supplement the natural lens instead of replacing it.	Lens, Intraocular, Phakic,Phakic Intraocular Lens,Intraocular Lens, Phakic,Intraocular Lenses, Phakic,Lens, Phakic Intraocular,Lenses, Phakic Intraocular
D054140	Refractive Surgical Procedures	Surgical procedures employed to correct REFRACTIVE ERRORS such as MYOPIA; HYPEROPIA; or ASTIGMATISM. These may involve altering the curvature of the CORNEA; removal or replacement of the CRYSTALLINE LENS; or modification of the SCLERA to change the axial length of the eye.	Keratorefractive Surgical Procedures,Refractive Surgery,Keratorefractive Surgical Procedure,Procedure, Keratorefractive Surgical,Procedure, Refractive Surgical,Procedures, Keratorefractive Surgical,Procedures, Refractive Surgical,Refractive Surgeries,Refractive Surgical Procedure,Surgeries, Refractive,Surgery, Refractive,Surgical Procedure, Keratorefractive,Surgical Procedure, Refractive,Surgical Procedures, Keratorefractive,Surgical Procedures, Refractive
D019654	Lens Implantation, Intraocular	Insertion of an artificial lens to replace the natural CRYSTALLINE LENS after CATARACT EXTRACTION or to supplement the natural lens which is left in place.	Implantation, Intraocular Lens,Implantations, Intraocular Lens,Intraocular Lens Implantation,Intraocular Lens Implantations,Lens Implantations, Intraocular