vision testing & teller cards
Teller Acuity Cards can be used to measure visual acuity in a non or preverbal child. It is a method of preferential looking, where the optometrist can observe if an individual can distinguish between the black lines, thus assessing vision quite accurately.
sheridan gardner test
The method of testing depends on matching shapes.
When testing children it is often difficult to retain their attention during an examination. The Sheridan Gardiner Test is a well established test designed for children but suitable for disabled people, those with learning difficulties or patients who do not share a common language with the examiner.
snellen acuity test
This is where patients are asked to look at letters calibrated to 6m away.
Driving vision needs to be better than 6/12 in each eye. We all strive to achieve 6/6 (20/20 in USA).
