|Early results of hyperopic and astigmatic laser in situ keratomileusis in eyes with secondary hyperopia.|
|PMID: 11013186 Owner: NLM Status: MEDLINE|
|PURPOSE: To assess the safety and efficacy of laser in situ keratomileusis (LASIK) for secondary hyperopia and hyperopic astigmatism and to develop a VISX STAR S2 LASIK nomogram (VISX Inc., Santa Clara, CA) for consecutive hyperopia after prior myopic refractive surgery.
DESIGN: Prospective, nonrandomized, self-controlled interventional study.
PARTICIPANTS: Thirty patients with consecutive hyperopia or hyperopia and astigmatism after LASIK, photorefractive keratectomy, automated lamellar keratoplasty, or radial keratotomy.
INTERVENTION/METHODS: Prospective evaluation of LASIK in 30 secondary eyes with fogged manifest sphere from +0.5 to +6.0 diopters (D) and cylinder from 0 to +5.0 D.
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA), and spherical equivalent (SE).
RESULTS: Mean manifest SE was +1.73 +/- 0.79 D before surgery, -0.13 +/- 1.00 D at 6 months after surgery, and -0.18 +/- 1.08 D at 1 year after surgery. At 6 months, 84% of patients with secondary hyperopia had UCVA of 20/40 or better; 76% were within +/-1 D of emmetropia. At 1 year, 85% had UCVA of 20/40 or better and 85% were within +/-1 D of emmetropia. No patients with secondary hyperopia lost 2 or more lines of BCVA at 1 year. Complications included intraoperative bleeding (3.3%), intraoperative epithelial defect (3.3%), transient interface debris (3.3%), significant dry eye (3.3%), blood in interface (3.3%), irregular astigmatism (6.7%), slight decentration (6.7%), trace haze (6.7%), or mild epithelial ingrowth not requiring removal (3.3%).
CONCLUSIONS: These early data suggest that LASIK for consecutive hyperopia from +0.5 to +5.50 D and astigmatism from 0 to +2.75 D using the VISX STAR S2 benefits from a nomogram adjusted for preoperative refraction, age, and prior refractive surgery, and is safe and effective.
|R L Lindstrom; E J Linebarger; D R Hardten; D M Houtman; T W Samuelson|
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|Type: Clinical Trial; Controlled Clinical Trial; Journal Article|
|Title: Ophthalmology Volume: 107 ISSN: 0161-6420 ISO Abbreviation: Ophthalmology Publication Date: 2000 Oct|
|Created Date: 2000-10-17 Completed Date: 2000-10-17 Revised Date: 2014-11-13|
Medline Journal Info:
|Nlm Unique ID: 7802443 Medline TA: Ophthalmology Country: UNITED STATES|
|Languages: eng Pagination: 1858-63; discussion 1863 Citation Subset: IM|
|APA/MLA Format Download EndNote Download BibTex|
Astigmatism / etiology, surgery*
Cornea / surgery*
Corneal Transplantation / adverse effects
Hyperopia / etiology, surgery*
Keratomileusis, Laser In Situ / adverse effects, methods*
Keratotomy, Radial / adverse effects
Myopia / surgery
Photorefractive Keratectomy / adverse effects
Postoperative Complications / surgery*
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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