Global Blindness course: Understanding refractive error
Channel: ICEH at LSHTM
Date: 2017-08-10

Uncorrected refractive error is a major cause of visual impairment in the world after cataract. Estimates from 2004 indicate that over 8 million people are blind and over 145 million are visually impaired because they lack refractive correction.

In this video we define refractive error in the context of public health and describe its epidemiology. We then go on to explore the factors which affect refractive error service delivery and school health programmes.

© 2017 International Centre for Eye Health, London School of Hygiene & Tropical Medicine.  This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license. 

This video is part of the free online course: Global Blindness: Planning and Managing Eye Care Services. We encourage the use and adaptation of this resource for teaching and learning. Find more Open Educational Resources for eye care on our website at http://iceh.lshtm.ac.uk/oer