Intermediate Vision Testing at 80cm: 16M (20/400) to .40M (20/10)
Memorization can alter testing results and create an inaccurate record for the patient. This near vision chart features multiple groups for repetitive testing help minimize memorization. This helps to create a more accurate and reliable vision chart that yields repeatable results.
Each side is different to minimize memorization..
Sloan ETDRS: Intermediate 80cm