Document Detail

A clinical index for predicting visual acuity after cataract surgery.
MedLine Citation:
PMID:  3369514     Owner:  NLM     Status:  MEDLINE    
We developed a clinical index for predicting postoperative visual acuity of cataract patients and cross-validated it using data from 182 patients aged 70 years and older. The index consisted of four statistically combined indicators: age, preoperative visual acuity, frequency of reading, and comorbidity. Validation of the index included comparisons to two standard technical instruments for measurement of retinal visual acuity. For the clinical index, 72% of predictions were accurate within one Snellen line of postoperative visual acuity compared to 37% using a laser interferometer and 33% using a potential acuity meter. Testing of the clinical index's external validity using data from 111 patients in a different ophthalmology clinic disclosed 61% of predictions accurate within one Snellen line.
M J Graney; W B Applegate; S T Miller; J T Elam; J M Freeman; T O Wood; T C Gettlefinger
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of ophthalmology     Volume:  105     ISSN:  0002-9394     ISO Abbreviation:  Am. J. Ophthalmol.     Publication Date:  1988 May 
Date Detail:
Created Date:  1988-06-20     Completed Date:  1988-06-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370500     Medline TA:  Am J Ophthalmol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  460-5     Citation Subset:  AIM; IM    
Department of Biostatistics and Epidemiology, University of Tennessee, Memphis.
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MeSH Terms
Cataract Extraction*
Interferometry / instrumentation,  methods
Lasers / diagnostic use
Models, Theoretical*
Ophthalmology / instrumentation
Postoperative Period
Visual Acuity*

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

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