Document Detail

Hyperopic shift after refractive keratotomy using the Casebeer System.
MedLine Citation:
PMID:  8915799     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To determine the degree of hyperopic shift following refractive keratotomy. SETTING: The Werblin Center, Princeton, West Virginia. METHODS: The results of 241 consecutive radial/astigmatic keratotomy procedures in 128 patients were studied. All procedures were performed using Casebeer nomograms. Refractive follow-up information was obtained for 78% of patients at 3 months (range 1 to 6 months), 1 year (range 6 to 21 months), and 3 years (range 30 to 44 months). RESULTS: Overall, the amount of hyperopic change decreased significantly (P < .05) during the 3 year period, from + 0.34 diopters (D) per year to + 0.12 D per year. Eyes with more than 6.0 D of preoperative intended correction were more unstable (+ 0.49 D in the first year and + 0.44 D in the second and third years) than eyes with less than 5.0 D (+ 0.27 D and + 0.05, respectively). CONCLUSION: Because the average magnitude of the hyperopic shift was + 0.6 D in the first 3 years after surgery, a slight undercorrection, -0.5 D to -0.7 D, should be the refractive endpoint for primary and enhanced refractive keratotomy surgery.
T P Werblin; G M Stafford
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of cataract and refractive surgery     Volume:  22     ISSN:  0886-3350     ISO Abbreviation:  J Cataract Refract Surg     Publication Date:  1996 Oct 
Date Detail:
Created Date:  1997-02-13     Completed Date:  1997-02-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8604171     Medline TA:  J Cataract Refract Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1030-6     Citation Subset:  IM    
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MeSH Terms
Follow-Up Studies
Hyperopia / etiology*,  physiopathology
Keratotomy, Radial* / adverse effects,  methods
Myopia / physiopathology,  surgery*
Postoperative Complications*
Visual Acuity

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

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