title: Holmium: YAG laser to treat astigmatism associated with myopia or hyperopia.
abstract: The Summit Technology, Inc. (Waltham, Mass.) holmium:YAG laser was used to treat astigmatism in 31 myopic and 8 hyperopic eyes. There was slow but continuing regression of effect even 1 year after treatment. This regression was particularly seen in hyperopic astigmatism, larger amounts of myopic astigmatism, and younger patients. In some cases keratometry readings returned to their pretreatment values. Males and females had similar results. The mean myopic shift in 9 myopic astigmatism eyes at 9-month follow up was 1 D.
authors.affiliation: Corneal Laser Centre, St. James's University Hospital, Leeds, England.
authors.forename: P M
authors.initials: PM
authors.lastname: Cherry
mesh_terms: D000328:Adult; D000368:Aged; D001251:Astigmatism / Q000209:etiology / Q000601:surgery*; D003315:Cornea / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006695:Holmium; D006801:Humans; D006956:Hyperopia / Q000150:complications*; D053685:Laser Therapy; D054018:Lasers, Excimer; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000150:complications*; D018903:Photorefractive Keratectomy; D011183:Postoperative Complications; D012029:Refraction, Ocular; D014792:Visual Acuity
chemical_list: D006695:Holmium