Help and frequently asked questions

What does partial sight mean?


The definition of partial sight varies from country to country.

In the UK, the legal definition is "substantially and permanently handicapped by defective vision caused by a congenital defect, illness or injury"

The optical profession has defined this further by using a value that can be measured by standard tests: a visual acuity of 3/60 to 6/60 with full visual field (breadth of vision), or 6/24 or worse, with moderate visual field, or 6/18 or better with very reduced visual field (breadth of vision).