Aim: To investigate whether unilateral vision loss reduced any aspects of qual ity of life in comparison with normal vision and to compare its impact with that of bilateral vision loss. Methods: This study used cluste...Aim: To investigate whether unilateral vision loss reduced any aspects of qual ity of life in comparison with normal vision and to compare its impact with that of bilateral vision loss. Methods: This study used cluster stratified random sa mple of 3271 urban participants recruited between 1992 and 1994 for the Melbourn e Visual Impairment Project. All predictors and outcomes were from the 5 year fo llow up examinations conducted in 1997-9. Results: There were 2530 participants who attended the follow up survey and had measurement of presenting visual acui ty. Both unilateral and bilateral vision loss were significantly associated with increased odds of having problems in visual functions including reading the tel ephone book, newspaper, watching television, and seeing faces. Non-correctable by refraction unilateral vision loss increased the odds of falling when away fro m home (OR=2.86, 95%CI 1.16 to 7.08), getting help with chores (OR=3.09, 95%CI 1.40 to 6.83), and becoming dependent (getting help with meals and chores) (OR =7.50, 95%CI 1.97 to 28.6). Non-correctable bilateral visual loss was associat ed with many activities of daily living except falling. Conclusions: Non-correc table unilateral vision loss was associated with issues of safety and independen t living while non-correctable bilateral vision loss was associated with nursin g home placement, emotional wellbeing, use of community services, and activities of daily living. Correctable or treatable vision loss should be detected and at tended to.展开更多
PURPOSE. To determine the impact of visual impairment on functional vision of children in a rural population of south India. METHODS. A visual function questi onnaire (LVP-VFQ) was administered to 1 194 children aged ...PURPOSE. To determine the impact of visual impairment on functional vision of children in a rural population of south India. METHODS. A visual function questi onnaire (LVP-VFQ) was administered to 1 194 children aged 7 to 15 years identif ied through a systematic random sampling technique from 144 hamlets of Kariapatt i in rural south India as part of a larger population-based project. Visual acu ity estimations and clinical examinations for morbidity were performed in these 1 194 children. A Rasch analysis was performed to validate the use of the instru ment in this population. Bootstrap estimates (95%confidence intervals) of the r egression coefficients were used to compare visual function scores between child ren with normal sight and children with unconnected monocular and binocular visu al impairment. RESULTS. The mean age of children was 10.3±2.1 years. The reliab ility estimates were 0.82 for person ability and 0.88 for item difficulty parame ters, according to the Rasch analysis. Aseparation index of 2.15 was obtained fo r person measures and 2.74 for item measures, and the mean square infit and outf it statistics were 1.03 (ZSTD 0.1) and 0.99 (ZSTD -0.1), respectively. Children with monocular visual impairment (bootstrap estimate 95%CI -0.05 -0.08 to -0.01) and binocular visual impairment (bootstrap estimate 95%CI -0.09 -0.11 to -0.07)were more likely to have functional visual deficits than were normally sighted peers. CONCLUSIONS. Monocular or binocular visual impairment im pacts on the functional vision of children in this rural population. Further stu dies are needed to determine the impact of treatment of visual impairment on functional vision in children of t his population.展开更多
文摘Aim: To investigate whether unilateral vision loss reduced any aspects of qual ity of life in comparison with normal vision and to compare its impact with that of bilateral vision loss. Methods: This study used cluster stratified random sa mple of 3271 urban participants recruited between 1992 and 1994 for the Melbourn e Visual Impairment Project. All predictors and outcomes were from the 5 year fo llow up examinations conducted in 1997-9. Results: There were 2530 participants who attended the follow up survey and had measurement of presenting visual acui ty. Both unilateral and bilateral vision loss were significantly associated with increased odds of having problems in visual functions including reading the tel ephone book, newspaper, watching television, and seeing faces. Non-correctable by refraction unilateral vision loss increased the odds of falling when away fro m home (OR=2.86, 95%CI 1.16 to 7.08), getting help with chores (OR=3.09, 95%CI 1.40 to 6.83), and becoming dependent (getting help with meals and chores) (OR =7.50, 95%CI 1.97 to 28.6). Non-correctable bilateral visual loss was associat ed with many activities of daily living except falling. Conclusions: Non-correc table unilateral vision loss was associated with issues of safety and independen t living while non-correctable bilateral vision loss was associated with nursin g home placement, emotional wellbeing, use of community services, and activities of daily living. Correctable or treatable vision loss should be detected and at tended to.
文摘PURPOSE. To determine the impact of visual impairment on functional vision of children in a rural population of south India. METHODS. A visual function questi onnaire (LVP-VFQ) was administered to 1 194 children aged 7 to 15 years identif ied through a systematic random sampling technique from 144 hamlets of Kariapatt i in rural south India as part of a larger population-based project. Visual acu ity estimations and clinical examinations for morbidity were performed in these 1 194 children. A Rasch analysis was performed to validate the use of the instru ment in this population. Bootstrap estimates (95%confidence intervals) of the r egression coefficients were used to compare visual function scores between child ren with normal sight and children with unconnected monocular and binocular visu al impairment. RESULTS. The mean age of children was 10.3±2.1 years. The reliab ility estimates were 0.82 for person ability and 0.88 for item difficulty parame ters, according to the Rasch analysis. Aseparation index of 2.15 was obtained fo r person measures and 2.74 for item measures, and the mean square infit and outf it statistics were 1.03 (ZSTD 0.1) and 0.99 (ZSTD -0.1), respectively. Children with monocular visual impairment (bootstrap estimate 95%CI -0.05 -0.08 to -0.01) and binocular visual impairment (bootstrap estimate 95%CI -0.09 -0.11 to -0.07)were more likely to have functional visual deficits than were normally sighted peers. CONCLUSIONS. Monocular or binocular visual impairment im pacts on the functional vision of children in this rural population. Further stu dies are needed to determine the impact of treatment of visual impairment on functional vision in children of t his population.
