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.
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.
Students who studied effective altruism and health care at the US university have selected Sightsavers to receive a grant of US$25,000.
The Global Partnership for Sustainable Development Data has highlighted the importance of using data to shine a light on groups that are often excluded.
The charity day is held each year on 11 September to commemorate those who died in the attack on the World Trade Center in New York.