Changing trends in the prevalence of blindness and visual impairment in a rural district of India: Systematic observations over a decade
Autor: | Rohit C Khanna, Srinivas Marmamula, Sannapaneni Krishnaiah, Pyda Giridhar, Subhabrata Chakrabarti, Gullapalli N Rao |
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Jazyk: | angličtina |
Rok vydání: | 2012 |
Předmět: |
Diabetes-related blindness
diabetic retinopathy key informant rapid assessment of avoidable blindness retinopathy of prematurity tele-ophthalmology Blindness disability equity health economics health policy health and development social exclusion Community eye health prevention of blindness ophthalmogical residency VISION 2020 Visual impairment blindness inequality social class income educational status gender and ethnic groups Advocacy effective service delivery enabling environment stakeholders resources Avoidable blindness and visual impairment impact scaling up Global blindness prevalence visual impairment visual acuity Comprehensive eye care eye care model pyramidal model optometrist optometry regulation eye health India Economics market government cost Millennium development goals Vision 2020 the Right to Sight eye care services planning rapid assessment methods Avoidable blindness cataract surgical rate corneal blindness Compliance services Human resource development service delivery social entrepreneurship uncorrected refractive error cataract extraction cataract coverage data aggregation population Case detection comprehensive eye examination developing countries glaucoma integrated approach training requirements Child health policy childhood blindness social determinants of eye health Access Asia-pacific funding low vision policy Funding vision research priorities peer review research Cataract surgery clinical outcome patient-reported outcome quality improvement quality Global eye health health interventions health systems systems thinking global cost health investment primary and secondary health Trauma pediatric cataract visual outcome Determinants patient satisfaction primary eye care vision centers outcomes rapid Ophthalmology RE1-994 |
Zdroj: | Indian Journal of Ophthalmology, Vol 60, Iss 5, Pp 492-497 (2012) |
Druh dokumentu: | article |
ISSN: | 0301-4738 1998-3689 |
DOI: | 10.4103/0301-4738.100560 |
Popis: | Context : Globally, limited data are available on changing trends of blindness from a single region. Aims : To report the changing trends in the prevalence of blindness, visual impairment (VI), and visual outcomes of cataract surgery in a rural district of Andhra Pradesh, India, over period of one decade. Settings and Design : Rural setting; cross-sectional study. Materials and Methods : Using a validated Rapid Assessment of Cataract Surgical Services (RACSS) method, population-based, cross-sectional survey was done in a rural district in the state of Andhra Pradesh, India. Two-stage sampling procedure was used to select participants ≥50 years of age. Further, a comparative analysis was done with participants ≥50 years from the previously concluded Andhra Pradesh Eye Disease Study (APEDS) study, who belonged to the same district. Statistical Analysis : Done using 11 th version of Stata. Results : Using RACSS, 2160/2300 (93.9%) participants were examined as compared with the APEDS dataset (n=521). Age and sex adjusted prevalence of blindness in RACSS and APEDS was 8% (95% CI, 6.9-9.1%) and 11% (95% CI, 8.3-13.7%), while that of VI was 13.6% (95% CI, 12.2-15.1%) and 40.3% (95% CI, 36.1-44.5%), respectively. Cataract was the major cause of blindness in both the studies. There was a significant reduction in blindness following cataract surgery as observed through RACSS (17.3%; 95% CI, 13.5-21.8%) compared with APEDS (34%; 95% CI, 20.9-49.3%). Conclusion : There was a significant reduction in prevalence of blindness and VI in this rural district of India over a decade. |
Databáze: | Directory of Open Access Journals |
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