It’s vitally important to investigate and address eye health disparities in urban areas, says Sightsavers' Guillaume Trotignon.
Photographs of Sightsavers’ work in Pakistan, taken by Andrew McConnell, are on show at the More London Riverside development near Tower Bridge.
Many children struggle at school because of poor vision. Sightsavers’ SHIP project trained teachers to carry out eye screening, and provided glasses for children who needed them.
Take a 10-minute wellbeing break and make a donation as part of the #Take10Give10 challenge.
Sightsavers has joined other eye health groups to call for avoidable blindness to be included in April's Commonwealth Heads of Government Meeting in the UK.
The global prevalence of blindness stands at 36 million people, according to research published in medical journal The Lancet.