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Epidemiology of ROP update - Africa is the new frontier
Clare Gilbert1, Aeesha N J Malik1, Nazmun Nahar2
1Department of Clinical Research, London School of Hygiene & Tropical Medicine, United Kingdom.
Insights
Retinopathy of prematurity (ROP) causes blindness globally, particularly in middle-income nations. Expanding neonatal care in sub-Saharan Africa may increase ROP blindness without control programs.
Area of Science:
- Ophthalmology
- Neonatology
- Public Health
Background:
- Retinopathy of prematurity (ROP) has caused multiple epidemics of childhood blindness globally.
- Recent epidemics have affected middle-income countries in Asia, Latin America, and Eastern Europe.
- Inadequate neonatal care quality and screening coverage lead to ROP in both preterm and larger infants.
Purpose of the Study:
- To analyze the global incidence and trends of ROP-related blindness.
- To highlight the evolving epidemiology of ROP in different economic settings.
- To project the future impact of ROP in sub-Saharan Africa.
Main Methods:
- Review of global ROP incidence data.
- Analysis of ROP epidemiology across various economic strata.
- Projection of ROP's future burden based on neonatal care expansion.
Main Results:
- An estimated 32,300 new cases of blindness and visual impairment from ROP occurred globally in 2010.
- Sub-Saharan Africa had the lowest incidence in 2010.
- ROP is projected to become a significant cause of childhood blindness in sub-Saharan Africa as neonatal care improves.
Conclusions:
- ROP remains a critical global public health issue, particularly in regions with developing neonatal care.
- Proactive ROP screening and treatment policies are essential to prevent increased childhood blindness in expanding neonatal care settings.
- Targeted interventions are needed to mitigate the rising risk of ROP in sub-Saharan Africa.
Abstract:
Several epidemics of blindness due to retinopathy of prematurity (ROP) have been described, with the most recent (the third) occurring in middle income countries in Latin America and Eastern Europe initially, and more recently in the more advanced economies in Asia. In these settings, which are characterized by variation in the quality of neonatal care and inadequate coverage of ROP screening and treatment, larger, more mature infants are affected as well as extremely preterm infants. In 2010 the annual incidence of blindness and visual impairment from ROP globally was estimated to be 32,300, with the lowest incidence in sub-Saharan countries. However, ROP is likely to become an increasingly important cause of blindness in children in sub-Saharan Africa as neonatal care expands unless policies and programmes for control are included at the outset.
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