A new type of software which shows on a screen how well a child can see has been developed in Glasgow, the BBC reports.
The brainchild of Prof Gordon Dutton, paediatric ophthalmologist with the Royal Hospital for Sick Children, Sight-Sim takes measurements of children"s eyes and displays the images they see on a screen.
Adults can enter the measurements of a child"s eyes into a computer to bring up a demonstration of their vision.
Ruth Hamilton, Michael Bradnam and Aled Evans, clinical scientists with NHS Greater Glasgow and Clyde, worked with University of Glasgow computing scientist Dr Paul Siebert to turn the concept into a reality.
Prof Dutton said the software could change the lives of children with sight problems.
According to contact lens firm Acuvue, there is no minimum age for wearing lenses to correct sight problems.
It says the average age for teenagers to start is 13 but that children as young as eight might do so, with responsible care for contact lenses more of an issue than age.
by Emily Tait