What is the Pelli-Robson test?
Similar to the Snellen test, the Pelli-Robson test is where the optician asks you to identify the letters on a chart.
Unlike the Snellen test, this uses printed letters of decreasing contrast, with three letters at each contrast level.
It's designed to identify patients with poor sensitivity to contrast.
You should seek professional advice if you are concerned about your eye health.Book an eye test