The fifth World Sight Day is to promote the message that 80 per cent of blind people around the world could have had their blindness prevented or cured.
The event, which takes place tomorrow (Thursday), is being co-ordinated by Vision 2020: The Right to Sight, a global coalition of 29 international organisations that aim to eliminate avoidable blindness by the year 2020.
The group believes that eye care should be a basic human right.
It will also highlight that every five seconds one person in the world goes blind, and that a child goes blind every minute.
The organisations are calling for donations from governments, corporations and other funders to tackle global blindness prevention. Blindness around the world is estimated to create an economic burden of US$28 billion a year.
Events will take place in dozens of countries and activities planned include the distribution of vitamin A, the essential vitamin for sight, and workshops.