ETDRS Original Series ESV3000 and ESC2000 Chart 2

The Adult Original Series ETDRS Sloan Letter vision chart 2 can be displayed in the ESV3000 illuminated cabinet. This chart features proportionally spaced (geometric progression) lines; line sizes range from 13/131 to 13/6.5 (4/40 to 4/2) equivalent.The other equivalents include letter size, 20 foot, 6 meter, decimal, and LogMAR. Features a standardized format used in National Eye Institute clinical studies and in low vision evaluations that require accurate and repeatable visual acuity measurements.

Dimensions: 24.5″ x 25.5″ (62 cm x 65 cm).

Testing distance: 13 feet/4 meters.