A customised portable LogMAR chart with adjustable chart illumination for use as a mass screening device in the rural population.
J Postgrad Med
; 2005 Apr-Jun; 51(2): 112-4, discussion 115
Article
Dans En
| IMSEAR
| ID: sea-115435
ABSTRACT
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 ANDMETHODS:
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.
Texte intégral:
1
Indice:
IMSEAR
Sujet Principal:
Population rurale
/
Sujet âgé de 80 ans ou plus
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Sujet âgé
/
Femelle
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Humains
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Mâle
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Dépistage visuel
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Reproductibilité des résultats
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Services de santé ruraux
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Adulte
Type d'étude:
Diagnostic_studies
/
Screening_studies
Limites du sujet:
Aged80
Pays comme sujet:
Asia
langue:
En
Texte intégral:
J Postgrad Med
Année:
2005
Type:
Article