Using Key Informant Method to Assess the Prevalence and Causes of Childhood Blindness in Xiu’shui County, Jiangxi Province, Southeast China

Xiao, Baixiang; Fan, Jiangbo; Deng, Yan; Ding, Yonglei; Muhit, Mohammad; Kuper, Hannah

doi:10.3109/09286586.2010.528138

Cited by 24 publications

(20 citation statements)

References 9 publications

(18 reference statements)

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“…25,28,30 Overall, the reported prevalence of unilateral and bilateral cataract was similar (P = 0.21). Prevalence was reported according to gender in five studies 22,24,30,31,34 and there was no difference in prevalence of childhood cataract by gender (P = 0.48).…”

Section: Resultsmentioning

confidence: 92%

“…Twenty studies reported data on prevalence [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34] and four studies reported incidence. [35][36][37][38] The included studies represented five geographical regions including Europe and Central Asia (n = 8), South Asia (n = 3), East Asia and Pacific (n = 8), Sub-Saharan Africa (n = 3), and North America (n = 2).…”

Section: Resultsmentioning

confidence: 99%

“…Prevalence by laterality (unilateral or bilateral) was reported in four studies 22,30,32,34 and three studies reported data on traumatic cataract. 25,28,30 Overall, the reported prevalence of unilateral and bilateral cataract was similar (P = 0.21).…”

Section: Resultsmentioning

confidence: 99%

“…If we take China (an upper middle-income economy) as one example, prevalence studies included in this review were carried out in Beijing (prevalence 1.7/10 000), 25 South-Eastern China (0.7/10 000), 34 South-Western China (5.6/10 000), 23 across all states (1.5/10 000) 21 and in Western China (22.7/10 000). 28 The authors of the latter study commented that Western China is relatively undeveloped compared with other regions in the country, and this may illustrate the existence of a range of health-care provision and prevalence within one country.…”

Section: Discussionmentioning

confidence: 99%

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Global prevalence of childhood cataract: a systematic review

Sheeladevi

Lawrenson

Fielder

et al. 2016

Eye

245

140

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Childhood cataract is an avoidable cause of visual disability worldwide and is a priority for VISION 2020: The Right to Sight. There is a paucity of information about the burden of cataract in children and the aim of this review is to assess the global prevalence of childhood cataract. The methodology for the review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We performed a literature search for studies reporting estimates of prevalence or incidence of cataract among children (agedo18 years) at any global location using the Cochrane Library, Medline and Embase up to January 2015. No restrictions were imposed based on language or year of publication. Study quality was assessed using a critical appraisal tool designed for systematic reviews of prevalence. Twenty prevalence and four incidence studies of childhood cataract from five different geographical regions were included. The overall prevalence of childhood cataract and congenital cataract was in the range from 0.32 to 22.9/10000 children (median = 1.03) and 0.63 to 9.74/10000 (median = 1.71), respectively. The incidence ranged from 1.8 to 3.6/10000 per year. The prevalence of childhood cataract in low-income economies was found to be 0.42 to 2.05 compared with 0.63 to 13.6/10000 in high-income economies. There was no difference in the prevalence based on laterality or gender. This review highlights substantial gaps in the epidemiological knowledge of childhood cataract worldwide, particularly from low and lower middle-income economies. More studies are needed using standard definitions and case ascertainment methods with large enough sample sizes.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Global prevalence of childhood cataract: a systematic review

Sheeladevi

Lawrenson

Fielder

et al. 2016

Eye

245

140

View full text Add to dashboard Cite

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“…However, surveys using key informants and other approaches to identify children with blindness provide some information on the likely magnitude of blindness in some settings. These surveys,7–12 summarised in table 1,suggest that in many resource-poor settings, the prevalence of blindness is lower than the previously suggested figures of >1/1000 children in most of sub-Saharan Africa or 0.5–0.9/1000 children in most of Asia. In addition, more recent studies in schools for the blind,13–16 while not providing data on blindness prevalence, have shown changing patterns in the causes of blindness, with fewer children with corneal conditions secondary to measles and vitamin A deficiency and more congenital conditions (disorders of the whole globe or retina) and inadequately treated cataract (table 2).…”

Section: Introductionmentioning

confidence: 80%

Visual impairment in children in middle- and lower-income countries

Courtright

Hutchinson

Lewallen

2011

Archives of Disease in Childhood

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Reducing visual impairment and blindness in children in resource-poor countries is one of the key components of the major global prevention of blindness initiative, VISION 2020 the Right to Sight. Although visual impairment and blindness among children is much less common than among adults, the potential lifespan of a child means that the lifelong impact of such impairment is very large. Over 10 years ago, it was estimated that, globally, 1.4 million children were blind. Much has changed in the past 10-20 years and there is a need to reassess both the magnitude and causes of global childhood blindness and visual impairment. While the widespread implementation of vitamin A supplementation and measles immunisation programmes have led to a reduction in vitamin A deficiency-related blindness in many poor countries, retinopathy of prematurity is now undergoing a third wave of endemicity, particularly in newly industrialising countries in Latin America and Asia. Childhood cataract is better recognised as an important potentially avoidable problem, as is paediatric glaucoma and refractive error in some populations. Trained paediatric ophthalmologists, although still too few, are growing in number in poor countries. A programmatic approach with a multidisciplinary team is essential to reducing childhood blindness. The elements of such programmes and the need for planning are discussed.

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Epidemiology and the worldwide impact of visual impairment in children

Rahi¹,

Gilbert²

2017

Taylor and Hoyt's Pediatric Ophthalmology and Strabismus

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Using Key Informant Method to Assess the Prevalence and Causes of Childhood Blindness in Xiu’shui County, Jiangxi Province, Southeast China

Cited by 24 publications

References 9 publications

Global prevalence of childhood cataract: a systematic review

Global prevalence of childhood cataract: a systematic review

Visual impairment in children in middle- and lower-income countries

Epidemiology and the worldwide impact of visual impairment in children

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