A customised portable LogMAR chart with adjustable chart illumination for use as a mass screening device in the rural population
Aim: To develop a customised, portable, cost-effective (logarithmic minimal angle resolution) LogMAR chart with adjustable illumination for use as a mass vision-screening device in the rural population. Materials and Methods : Visual acuity of 100 individuals was evaluated with a customised chart an...
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Veröffentlicht in: | Journal of postgraduate medicine (Bombay) 2005-04, Vol.51 (2), p.112-114 |
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container_title | Journal of postgraduate medicine (Bombay) |
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creator | Gouthaman, M Raman, R P Kadambi, A Padmajakumari, R Paul, P G Sharma, T |
description | Aim: To develop a customised, portable, cost-effective (logarithmic
minimal angle resolution) LogMAR chart with adjustable illumination for
use as a mass vision-screening device in the rural population.
Materials and Methods : Visual acuity of 100 individuals was evaluated
with a customised chart and compared with the standard Early Treatment
Diabetic Retinopathy Study (ETDRS) chart and Snellen′s Chart.
Bland and Altman analytical techniques were used for analysis.
Results: Test-retest variability of the customised chart was just a
one-line difference (95% CI for agreement), and so were the results
with the standard ETDRS charts; a variability of 3-line was noted with
Snellen′s chart. Two-line differences were observed when
comparison was made with Standard ETDRS chart and 2 to 3-line
differences with Snellen′s chart. Conclusion: The customised
portable LogMAR chart with adjustable illumination shows less
test-retest variability and better agreement with standard ETDRS chart;
therefore, it can be used as a mass vision-screening device in rural
settings. |
format | Article |
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minimal angle resolution) LogMAR chart with adjustable illumination for
use as a mass vision-screening device in the rural population.
Materials and Methods : Visual acuity of 100 individuals was evaluated
with a customised chart and compared with the standard Early Treatment
Diabetic Retinopathy Study (ETDRS) chart and Snellen′s Chart.
Bland and Altman analytical techniques were used for analysis.
Results: Test-retest variability of the customised chart was just a
one-line difference (95% CI for agreement), and so were the results
with the standard ETDRS charts; a variability of 3-line was noted with
Snellen′s chart. Two-line differences were observed when
comparison was made with Standard ETDRS chart and 2 to 3-line
differences with Snellen′s chart. Conclusion: The customised
portable LogMAR chart with adjustable illumination shows less
test-retest variability and better agreement with standard ETDRS chart;
therefore, it can be used as a mass vision-screening device in rural
settings.</description><identifier>ISSN: 0022-3859</identifier><identifier>EISSN: 0972-2823</identifier><identifier>PMID: 16006702</identifier><language>eng</language><publisher>India: Medknow Publications and Staff Society of Seth GS Medical College and KEM Hospital, Mumbai, India</publisher><subject>Adult ; Aged ; Aged, 80 and over ; Customised logMAR chart, ETDRS chart, vision-screening device ; Female ; Humans ; India ; Male ; Measurement ; Medical examination ; Middle Aged ; Reproducibility of Results ; Rural Health Services ; Rural Population ; Testing ; Vision ; Vision Screening - instrumentation ; Visual acuity</subject><ispartof>Journal of postgraduate medicine (Bombay), 2005-04, Vol.51 (2), p.112-114</ispartof><rights>Copyright 2005 Journal of Postgraduate Medicine.</rights><rights>COPYRIGHT 2005 Medknow Publications and Media Pvt. Ltd.</rights><rights>Copyright Medknow Publications Apr-Jun 2005</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,79426</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16006702$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Gouthaman, M</creatorcontrib><creatorcontrib>Raman, R P</creatorcontrib><creatorcontrib>Kadambi, A</creatorcontrib><creatorcontrib>Padmajakumari, R</creatorcontrib><creatorcontrib>Paul, P G</creatorcontrib><creatorcontrib>Sharma, T</creatorcontrib><title>A customised portable LogMAR chart with adjustable chart illumination for use as a mass screening device in the rural population</title><title>Journal of postgraduate medicine (Bombay)</title><addtitle>J Postgrad Med</addtitle><description>Aim: To develop a customised, portable, cost-effective (logarithmic
minimal angle resolution) LogMAR chart with adjustable illumination for
use as a mass vision-screening device in the rural population.
Materials and Methods : Visual acuity of 100 individuals was evaluated
with a customised chart and compared with the standard Early Treatment
Diabetic Retinopathy Study (ETDRS) chart and Snellen′s Chart.
Bland and Altman analytical techniques were used for analysis.
Results: Test-retest variability of the customised chart was just a
one-line difference (95% CI for agreement), and so were the results
with the standard ETDRS charts; a variability of 3-line was noted with
Snellen′s chart. Two-line differences were observed when
comparison was made with Standard ETDRS chart and 2 to 3-line
differences with Snellen′s chart. Conclusion: The customised
portable LogMAR chart with adjustable illumination shows less
test-retest variability and better agreement with standard ETDRS chart;
therefore, it can be used as a mass vision-screening device in rural
settings.</description><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Customised logMAR chart, ETDRS chart, vision-screening device</subject><subject>Female</subject><subject>Humans</subject><subject>India</subject><subject>Male</subject><subject>Measurement</subject><subject>Medical examination</subject><subject>Middle Aged</subject><subject>Reproducibility of Results</subject><subject>Rural Health Services</subject><subject>Rural Population</subject><subject>Testing</subject><subject>Vision</subject><subject>Vision Screening - instrumentation</subject><subject>Visual acuity</subject><issn>0022-3859</issn><issn>0972-2823</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>RBI</sourceid><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNptkduKFDEQhhtR3IO-ggQvvOsl5-5cDosnGBFk75skXZnJkE7aJK1456MbdnYVZKlAij_fX6minnWXWA20pyNlz1uOKe3ZKNRFd1XKCWMiJWcvuwsiMZYDppfd7x2yW6lp8QVmtKZctQmA9unwZfcN2aPOFf309Yj0fGrc_eNZ9SFsi4-6-hSRSxltBZAuSKNFl4KKzQDRxwOa4Ye3gHxE9Qgob1mH9tG6hXvrq-6F06HA64f7urv78P7u9lO___rx8-1u3xsqh9ozrrh2BktMQIKZ9TAKEEoQiu0MVhjuRsIdHRwhggprFHDjhBuI0hwIu-7encuuOX3foNSpTWwhBB0hbWWSIyaKsaGBb_8DT2nLsbU2USYUJwMeG9SfoYMOMPnoUs3aHiBCGy5FcL7JO8K4pGpUqvE3T_AtZli8fdLw5qGLzSwwT2v2i86_psfF_atofAo-wl_CZq-nR_G0toMF5pz9AcXxptU</recordid><startdate>200504</startdate><enddate>200504</enddate><creator>Gouthaman, M</creator><creator>Raman, R P</creator><creator>Kadambi, A</creator><creator>Padmajakumari, R</creator><creator>Paul, P G</creator><creator>Sharma, T</creator><general>Medknow Publications and Staff Society of Seth GS Medical College and KEM Hospital, Mumbai, India</general><general>Medknow Publications and Media Pvt. 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minimal angle resolution) LogMAR chart with adjustable illumination for
use as a mass vision-screening device in the rural population.
Materials and Methods : Visual acuity of 100 individuals was evaluated
with a customised chart and compared with the standard Early Treatment
Diabetic Retinopathy Study (ETDRS) chart and Snellen′s Chart.
Bland and Altman analytical techniques were used for analysis.
Results: Test-retest variability of the customised chart was just a
one-line difference (95% CI for agreement), and so were the results
with the standard ETDRS charts; a variability of 3-line was noted with
Snellen′s chart. Two-line differences were observed when
comparison was made with Standard ETDRS chart and 2 to 3-line
differences with Snellen′s chart. Conclusion: The customised
portable LogMAR chart with adjustable illumination shows less
test-retest variability and better agreement with standard ETDRS chart;
therefore, it can be used as a mass vision-screening device in rural
settings.</abstract><cop>India</cop><pub>Medknow Publications and Staff Society of Seth GS Medical College and KEM Hospital, Mumbai, India</pub><pmid>16006702</pmid><tpages>3</tpages><oa>free_for_read</oa></addata></record> |
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source | MEDLINE; Bioline International; EZB-FREE-00999 freely available EZB journals |
subjects | Adult Aged Aged, 80 and over Customised logMAR chart, ETDRS chart, vision-screening device Female Humans India Male Measurement Medical examination Middle Aged Reproducibility of Results Rural Health Services Rural Population Testing Vision Vision Screening - instrumentation Visual acuity |
title | A customised portable LogMAR chart with adjustable chart illumination for use as a mass screening device in the rural population |
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