Intermediate at a Choice of 66cm Testing Distances.
Chart with Cord for easily achieving proper testing distance.
Intermediate Vision Testing at 66cm: 8M (20/250) to .20M (20/6.3)
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 66cm