HOTV ETDRS charts with proportionally spaced (logMAR) lines; line sizes range from 13/131 to 13/6.5 (4/40 to 4/2) equivalent, 0.10 to 2.00. The other equivalents featured on this chart are letter size, 20 foot, 6 meter, decimal, and LogMAR. These charts are available in 2 different versions when repetitive testing is involved.

ESV3000 ETDRS Clinical Trial Standardized Viewer and ESC2000 Illuminated ETDRS Clinical Trial Cabinet compatible.

Dimensions: Height 24.5" x Width 25.5" (62 cm x 65 cm).

Testing distance: 13 feet/4 meters.

Click here for the ETDRS Guide.