| Does macular laser alter the refraction in a diabetic with maculopathy? A pilot study. | |
MedLine Citation:
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PMID: 11702968 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To determine whether macular photocoagulation has any effect on refraction in diabetics. METHODS: This was a prospective study of 12 eyes of 12 diabetics with refraction at 2 weeks before and at 4 weeks and 4 months after argon laser. This was combined with a questionnaire survey of attitude among ophthalmologists on prescribing spectacles for diabetics awaiting macular laser. The main outcome measure was the spherical equivalents (SEQ) before and after treatment. RESULTS: Only 36% of ophthalmologists surveyed would prescribe corrective lenses in patients waiting for macular photocoagulation. The median change in magnitude of SEQ at 4-6 weeks post-laser compared to pre-laser was 0.36 D (interquartile range 0.18-0.50 D). The median change in SEQ at 4 months was 0.25 D (interquartile range 0.12-0.56 D). These changes in SEQ from pretreatment values were not statistically significant on Wilcoxon signed-rank test (p = 0.17 and 0.10, respectively). The correlation coefficient between difference and average SEQ was 0.02 (95% CI -0.14 to 0.19, p = 0.75) at 4 weeks and 0.11 (95% CI -0.06 to 0.275, p = 0.17) at 4 months, indicating no tendency for change in refraction with increasing ametropia. CONCLUSION: This pilot study implies that argon laser photocoagulation in diabetic maculopathy does not alter refraction. Prescription of corrective lenses can be performed prior to laser therapy, if required. |
Authors:
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K T Sim; L Tong; S A Vernon |
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Publication Detail:
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Type: Clinical Trial; Controlled Clinical Trial; Journal Article |
Journal Detail:
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Title: Eye (London, England) Volume: 15 ISSN: 0950-222X ISO Abbreviation: Eye (Lond) Publication Date: 2001 Oct |
Date Detail:
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Created Date: 2001-11-12 Completed Date: 2001-12-11 Revised Date: 2009-11-03 |
Medline Journal Info:
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Nlm Unique ID: 8703986 Medline TA: Eye (Lond) Country: England |
Other Details:
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Languages: eng Pagination: 591-4 Citation Subset: IM |
Affiliation:
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Department of Ophthalmology University Hospital, Nottingham, UK. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Case-Control Studies Diabetic Retinopathy / physiopathology, surgery* Female Health Care Surveys Humans Laser Coagulation / adverse effects* Male Middle Aged Physician's Practice Patterns Pilot Projects Prospective Studies Refraction, Ocular / physiology* Refractive Errors / etiology*, physiopathology Statistics, Nonparametric |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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