By donating their eye exam fees on World Sight Day, Thursday 8 October, optometrists and Challenge organiser Optometry Giving Sight are generating funds and awareness for the 670 million people who are blind or vision impaired simply because they cannot access an eye exam and glasses. In developing countries, a disproportionate number of these people are women.

It can cost just $5 to provide an eye examination, a pair of glasses and residual training to local staff in countries where eye care services are few. This alone could be enough to save someone from the injustices of poverty. People who wear glasses are invited to make a donation at a participating optometry practice or at Givingsight.org.