Document Detail

Early results of hyperopic and astigmatic laser in situ keratomileusis in eyes with secondary hyperopia.
MedLine Citation:
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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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  Ophthalmology     Volume:  107     ISSN:  0161-6420     ISO Abbreviation:  Ophthalmology     Publication Date:  2000 Oct 
Date Detail:
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    
Other Details:
Languages:  eng     Pagination:  1858-63; discussion 1863     Citation Subset:  IM    
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MeSH Terms
Astigmatism / etiology,  surgery*
Cornea / surgery*
Corneal Transplantation / adverse effects
Hyperopia / etiology,  surgery*
Iatrogenic Disease
Keratomileusis, Laser In Situ / adverse effects,  methods*
Keratotomy, Radial / adverse effects
Lasers, Excimer
Middle Aged
Myopia / surgery
Photorefractive Keratectomy / adverse effects
Postoperative Complications / surgery*
Prospective Studies
Treatment Outcome
Visual Acuity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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