Document Detail

Corneal topography in corneal refractive therapy (CRT): a 1-month follow-up.
MedLine Citation:
PMID:  15499239     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To evaluate visual outcome and corneal shape change during the first month of wearing corneal refractive therapy (CRT) reshaping contact lenses to correct myopia in otherwise healthy eyes. METHODS: Twenty-nine eyes were fit with Paragon CRT contact lenses, which were worn nightly. Before and after CRT fitting, uncorrected visual acuity was measured, and corneal topography was performed and evaluated with the Holladay Diagnostic Summary EyeSys 2000 Videokeratoscope. To evaluate the visual outcome, refractive yield (achieved/attempted correction) was calculated and accounted for distance or monovision. RESULTS: Uncorrected visual acuity improved in all patients. In 1 month, refractive yield was 96.7%. Corneal uniformity index and predicted corneal acuity index were maintained, and the Q value changed from -0.08 to +0.38 (P < 0.05). CONCLUSIONS: CRT lenses are effective in improving visual acuity. They significantly changed the corneal from prolate to oblate while maintaining corneal quality.
Natalia Potapova; George Wang; Shamin Haji; Penny Asbell
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Eye & contact lens     Volume:  30     ISSN:  1542-2321     ISO Abbreviation:  Eye Contact Lens     Publication Date:  2004 Jul 
Date Detail:
Created Date:  2004-10-22     Completed Date:  2004-11-22     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  101160941     Medline TA:  Eye Contact Lens     Country:  United States    
Other Details:
Languages:  eng     Pagination:  166-8     Citation Subset:  IM    
Department of Ophthalmology, Mount Sinai School of Medicine, New York, NY 10029-6574, USA.
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MeSH Terms
Contact Lenses*
Cornea / physiopathology*
Corneal Topography*
Follow-Up Studies
Myopia / physiopathology*,  therapy*
Retrospective Studies
Visual Acuity / physiology
Grant Support

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

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