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Correlation of central field index (10-2 visual field analysis) and activity limitation with increasing severity of glaucoma using glaucoma activity limitation-9 questionnaire.

Abstract：

Purpose:The purpose of the study was to analyze the correlation between central field index (CFI) and activity limitation in glaucoma using glaucoma activity limitation-9 (GAL-9) questionnaire. Methods:This hospital-based, cross-sectional, noninterventional study, included 50 patients diagnosed with glaucoma, with field defect encroaching onto central 10° in Humphrey field analysis 30-2 program, in at least one eye. These patients underwent central 10-2 field analysis and CFI was calculated with the help of a calculator created by us. Patients with severe cognitive impairment were excluded and the rest completed the GAL-9 questionnaire. The data was analyzed to determine the correlation between the CFI and the GAL-9 scores. Results:There was a moderate correlation between CFI of better eye (r = -0.431, confidence interval "CI" -0.619 to -0.173, P < 0.002) and worse eye (r = -0.342, CI: -0.575 to - 0.058, P < 0.015) with GAL-9, the better eye showing a stronger correlation. Mean deviations (MD) of both better (r = -0.345, CI: -0.556 to -0.069, P < 0.014) and worse eye (r = -0.346, CI: -0.578 to -0.063 P < 0.014) showed similar moderate correlation. Vision of better eye (r = -0.398, CI: -0.577 to -0.210, P < 0.004) showed a stronger correlation with GAL-9 score than worse eye (r = -0.188, CI: -0.475 to 0.100, P < 0.192). Subscales of GAL-9 questionnaire also correlated with better eye status. "Finding dropped objects" had the strongest correlation to CFI of better eye (r = -0.676) and "adjusting to dim lights" had the weakest correlation (r = -0.052). Conclusion:The better eye status in glaucoma patients correlated better than worse eye with regard to activity limitation, signifying that the better eye has a greater influence on the quality of life and how patients perceive their disability. Furthermore, CFI showed a better correlation with GAL-9 score than MD.

journal_name

Indian J Ophthalmol

journal_title

Indian journal of ophthalmology

authors

Daruka R,Kuzhuppilly NIR,Dev S,Patil SN,Rajendraprasad S

doi

10.4103/ijo.IJO_295_18

subject

Has Abstract

pub_date

2018-08-01 00:00:00

pages

1098-1103

issue

eissn

0301-4738

issn

1998-3689

pii

IndianJOphthalmol_2018_66_8_1098_237330

journal_volume

pub_type

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Correlation of central field index (10-2 visual field analysis) and activity limitation with increasing severity of glaucoma using glaucoma activity limitation-9 questionnaire.