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Changing pattern of Childhood blindness in India and service delivery needs Asim kumar Sil MBBS, DO, DNB, M Sc Netra Niramay Niketan,Vivekananda Mission Ashram Chaitanyapur , West Bengal. Will Bilkis see again?. Bilkis revisited. Her suffering could have been avoided. Childhood Blindness.
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Changing pattern of Childhood blindness in India and service delivery needs Asimkumar Sil MBBS, DO, DNB, M ScNetraNiramayNiketan,Vivekananda Mission AshramChaitanyapur, West Bengal
Childhood Blindness • Rarer than blindness in adults • Total number of blind-years suffered by blind children is second only to that due to cataract in adults • Reliable data is not available from all geographic regions
Childhood Blindness • Possible sources of data • Available data on childhood blindness in India - prevalence & causes • Change in the trend over time
Prevalence - Sources of data • Blindness Registration • Birth cohort studies • Surveillance • Population based survey • Community Based Rehabilitation (CBR) programme
Community Based Rehabilitation • Prevention and treatment of preventable and treatable visual impairment • Rehabilitation of incurably blind individuals
CBR • Baseline door-to-door surveys of whole population • Visual screening by qualified ophthalmologists and optometrists • Includes all age groups
Prevalence of Childhood Blindness in India • 0.61/1000 children(95% CI0.51-0.82) in Andhra Pradesh (CBR) • 0.51/1000 children(95% CI 0.37-0.65) in West Bengal (CBR) • 1/1000 children(95% CI 0.094 - 0.106) in Orissa (Survey) • 1/1000 children (East Delhi) • 1.06/1000 children (Karnataka)
Distribution of Severely Visually Impaired and Blind Children in the World
Incidence of Childhood Blindness • Insufficient information • In industrialized countries 2/100,000 children/year due to acquired diseases • Globally 500,000 children become blind every year • 50 - 60% blind children die early in their childhood
Classification of Causes of Blindness in Children • Anatomical Classification - Takes into account the part of the eye most affected • AetiologicalClassification - Takes into account the time of onset of the condition leading to blindness
Causes of Childhood Blindness - Sources of Data used in India • Blind School Studies • CBR • Population based Survey
Causes of SVI & Blindness in children from all the reported studies in India
Some recent findings from different parts of India • Congenital whole globe abnormality is as high as 41% in Maharastra • VAD is still a major cause of blindness in North East • Uncorrected Refractive error is major cause of blindness among children in West Bengal in Sarva Siksha Abhiyan ( universal education drive), - unpublished . Results from surveys in Gujarat and west Bengal in 2005 also shows similar results.
Commonest Causes of Blindness in Children in India • Corneal scarring mainly due to VAD • Congenital anomalies of the whole globe, usually of unknown cause, but where genetic factors may play a role • Retinal dystrophies mainly hereditary • Cataract and amblyopia
Regional Variation in the major causes of blindness in schools for the blind in India
Avoidable Childhood Blindness in India • Up to 30% Preventable • 20% causes treatable
Corneal Blindness among students of Blind Schools in West Bengal
Change of trend in the causes of childhood blindness in India • Corneal blindness is decreasing • Congenital whole globe abnormalities are becoming proportionately higher • ROP is likely increase in urban areas • Uncorrected refractive errors could be a major cause if detected properly
How to reach children- Issues • Need vs. availability of service • Need vs. uptake of service • Availability of service vs. affordability
Ways to reach children • School health programme • Through health workers working in MCH • ICDS – helps early detection • CBR • Outreach camps • Key informants • Public education in various forms • Networking with physicians • Utilising Immunisation days • Sensitising all levels of workers even priests
Why Early Rehabilitation? • When a mother brings a visually impaired child to a doctor she doesn’t know whether the disease is curable or incurable. She needs help. • All our efforts to restore vision may fail, but we should not fail to give proper guidance to parents about the child’s overall development. • Outcome is always better if the process is started early
Low vision devices have greater role to play • Exhaust maximum medical management and continue follow-up • Find out suitable LVD (optical and non optical) at the earliest opportunity • Give overall training
Practical approach • Awareness generation • Active Case finding utilising all sources • Early intervention • Individualised approach • Making devices affordable
Computer Braille training centre (2002), VMA School for the Blind