Preoperative visual acuity among cataract surgery patients and countries’ state of development: a global study

Shah, Shaheen P.; Gilbert, Clare; Razavi, Hessom; Turner, Elizabeth L.; Lindfield, Robert

doi:10.2471/blt.10.080366

Cited by 47 publications

(44 citation statements)

References 16 publications

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“…Although this proportion is lower than that reported for some cataract surgical camps in India, 17 with preoperative blindness in up to 90% of patients, the percentage is comparable with a recent large, multi-country study in the Philippines, Bangladesh and Kenya 18 and much higher than the average proportion of patients with preoperative severe visual impairment or blindness based on a recent global survey. 19 Subjects in the current study failed to reach the World Health Organization target for uncorrected vision of 480% in the range 6/6-6/18, although they approached the standard for best-corrected vision of 90% !6/18 (figures for the current cohort were 57% and 80%, respectively). 16 These results were somewhat worse than those reported in a smaller study (2 surgeons at one rural hospital) in rural China, 9 although they were on a par with two recent population-based urban studies 20,21 and much better than outcomes reported over a decade ago in two rural, population-based studies 22,23 and also the Chinese Nine-province Survey.…”

Section: Discussionmentioning

confidence: 54%

Outcomes and Projected Impact on Vision Restoration of the China Million Cataract Surgeries Program

Yan

Guan

Mueller

et al. 2013

Ophthalmic Epidemiology

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Section: Discussionmentioning

confidence: 54%

Outcomes and Projected Impact on Vision Restoration of the China Million Cataract Surgeries Program

Yan

Guan

Mueller

et al. 2013

Ophthalmic Epidemiology

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“…[19][20][21] Globally, the preoperative visual acuity with regard to cataract surgery was associated with increasing HDI and per capita income. 22,23 The cost was the main barrier to utilization of cataract surgery in some developing countries. [24][25][26] Reduction of the cost effectively increased the cataract surgical rate in southern China by 160%.…”

Section: Discussionmentioning

confidence: 99%

Variations and Trends in Health Burden of Visual Impairment Due to Cataract: A Global Analysis

Wang

Huang

2017

Invest. Ophthalmol. Vis. Sci.

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PURPOSE.To evaluate the global trends in health burden of people visually impaired from cataract in terms of disability-adjusted life years (DALY) and its correlations with national levels of socioeconomic development.METHODS. Global, regional, and national DALY numbers, crude rate, and age-standardized rate of cataract vision loss by age and sex were obtained from the database of the Global Burden of Disease Study 2015. The human development index, per capita gross domestic product, and other country-level data were derived from international open databases. Regression analysis was used to assess the correlations between age-standardized DALY rate and socioeconomic variables. HDI,) for high HDI, and 17.10 (95%CI: 13.91-26.84) for very high HDI countries (P < 0.01), respectively. The national agestandardized DALY rates in 2015 were negatively associated with both HDI (R 2 ¼ 0.489, P < 0.001) and per capita gross domestic product (R 2 ¼ 0.331, P < 0.001). Stepwise multiple regression showed that HDI was significantly correlated with national age-standardized DALY rates in 2015 after adjusting for other confounding factors (P < 0.001). RESULTS. CONCLUSIONS.The global health burden of vision loss due to cataract increased between 1990 and 2015 despite considerable efforts from the World Health Organization and VISION 2020 initiatives.

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“…Traditionally, surgical initiatives in global health were implemented as disease-specific vertical interventions to meet targeted needs in resource-poor settings of the world. 5–7 More recent efforts to expand the breadth of such services include the World Health Organization’s (WHO) Emergency and Essential Surgical Care program and the World Bank’s Disease Control Priorities project; both of which promote the implementation of essential packages of interventions at first-level hospitals in Low- and Middle-Income Countries (LMICs). 8,9 However, research now shows that surgical care is required in the treatment of nearly all disease states of the global burden of disease, strengthening the argument that these services must be integrated into health systems at all levels and for diverse clinical problems.…”

Section: Introductionmentioning

confidence: 99%

Estimated need for surgery worldwide based on prevalence of diseases: a modelling strategy for the WHO Global Health Estimate

Rose

Weiser

Hider

et al. 2015

The Lancet Global Health

338

247

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Background Surgery is a foundational component of health care systems. However, previous efforts to integrate surgical services into global health initiatives do not reflect the scope of surgical need and many health systems do not provide essential interventions. We estimate the minimum global volume of surgical need to address prevalent diseases in 21 epidemiological regions from the Global Burden of Disease Study 2010 (GBD). Methods Prevalence data were obtained from GBD 2010 and organized into 119 disease states according to the World Health Organization’s Global Health Estimate (GHE). These data, representing 187 countries, were then apportioned to the 21 GBD epidemiological regions. Using previously defined values for the incident need for surgery for each of the 119 GHE disease states, we calculate minimum global need for surgery based on the prevalence of each condition in each region. Results We estimate that at least 321·5 million surgical procedures would be needed to address the burden of disease for a global population of 6.9 billion in 2010. Minimum rates of surgical need vary across regions, ranging from 3,383 operations per 100,000 in Central Latin America to 6,495 operations per 100,000 in Western Sub-Saharan Africa. Global surgical need also varied across sub-categories of disease, ranging from 131,412 procedures for Nutritional Deficiencies to 45.8 million procedures in Unintentional Injuries. Conclusions The estimated need for surgical procedures worldwide is large and addresses a broad spectrum of disease states. Surgical need varies between regions of the world according to disease prevalence and many countries do not meet the basic needs of their populations. These estimates may be useful for policy makers, funders, and ministries of health as they consider how to incorporate surgical capacity into health systems.

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Preoperative visual acuity among cataract surgery patients and countries’ state of development: a global study

Cited by 47 publications

References 16 publications

Outcomes and Projected Impact on Vision Restoration of the China Million Cataract Surgeries Program

Outcomes and Projected Impact on Vision Restoration of the China Million Cataract Surgeries Program

Variations and Trends in Health Burden of Visual Impairment Due to Cataract: A Global Analysis

Estimated need for surgery worldwide based on prevalence of diseases: a modelling strategy for the WHO Global Health Estimate

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