Photographs of Sightsavers’ work in Pakistan, taken by Andrew McConnell, are on show at the More London Riverside development near Tower Bridge.
More than 250 children with visual impairments will go to primary school in Mali as the result of a Sightsavers pilot being run in six schools.
The partnership was launched on World Sight Day with a nationwide bake sale, during which Optical Express staff channelled their inner Mary Berry.
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.
Sightsavers has launched a final push to deliver a million cataract operations, with income from the appeal matched pound for pound by the UK government.
The Cameroon Cataract Development Impact Loan could provide up to 18,000 cataract operations in the next five years.
The track, entitled ‘So Much More’, was written, recorded and produced by Specsavers staff and released on iTunes in September.