Document Detail


Accuracy and precision of LASIK flap thickness using the IntraLase femtosecond laser in 1000 consecutive cases.
MedLine Citation:
PMID:  18856234     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To report the safety and flap thickness predictability of LASIK using the IntraLase femtosecond laser. METHOD: A retrospective analysis of 1000 consecutive LASIK cases was performed to assess the rate of intra- and postoperative complications and loss of best spectacle-corrected visual acuity (BSCVA). A subset of 260 eyes was prospectively analyzed to assess flap thickness predictability using subtraction ultrasound on the day of surgery. RESULTS: No serious intra- or postoperative complications were noted. Three (0.3%) patients had epithelial defects that required a bandage contact lens. Four (0.4%) patients had slipped caps on day 1 that required repositioning. Two (0.2%) patients developed grade I diffuse lamellar keratitis. No patient developed epithelial ingrowth >1 mm from the flap edge, transient light sensitivity, or infection. No patient lost > or = 2 lines of BSCVA at 6 months postoperatively. With an attempted flap thickness of 105 microm with the 15-KHz laser, the mean flap thickness was 116.79 +/- 10.75 microm (range: 95 to 148 microm) (n = 119). In the 30-KHz group (n = 141), the target corneal flap thickness was 115 microm, with a mean flap thickness of 114.02 +/- 9.82 microm (range: 93 to 163 microm). Overall 87.3% of eyes were within +/- 20 microm of the intended result. Ninety-eight percent of caps created with the 30-KHz laser were within +/- 20 microm compared to 74.8% in the 15-KHz group. CONCLUSIONS: LASIK surgery with the IntraLase femtosecond laser is safe and flap thickness is predictable.
Authors:
Gerard Sutton; Chris Hodge
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of refractive surgery (Thorofare, N.J. : 1995)     Volume:  24     ISSN:  1081-597X     ISO Abbreviation:  J Refract Surg     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-10-16     Completed Date:  2008-10-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9505927     Medline TA:  J Refract Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  802-6     Citation Subset:  IM    
Affiliation:
Auckland University, Save Sight and Eye Institute, Department of Ophthalmology, Sydney Eye Hospital, Sydney, Australia. gsutton@theeyeinstitute.com.au
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MeSH Terms
Descriptor/Qualifier:
Humans
Intraoperative Complications
Keratomileusis, Laser In Situ / standards*
Lasers, Excimer / therapeutic use*
Myopia / surgery
Postoperative Complications
Prospective Studies
Reproducibility of Results
Retrospective Studies
Surgical Flaps*
Visual Acuity

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


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