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ETDRS ORIGINAL SERIES CHART R
An original series ETDRS eye chart with proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Features the standardized format used in National Eye Institute clinical studies and in Low Vision evaluations that require accurate and repeatable visual acuity measurements.
ETDRS ORIGINAL SERIES CHART 1
An Original series ETDRS vision chart that can be displayed in the ESV3000 or ESC2000 light boxes. This chart features proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Features the standardized format used in National Eye Institute clinical studies and in Low Vision evaluations that require accurate and repeatable visual acuity measurements.
ETDRS ORIGINAL SERIES CHART 2
The Adult Original Series ETDRS Sloan Letter vision chart 2 can be displayed in the ESV3000 illuminated cabinet. The chart features proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. 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.
The 2000 Series ETDRS Sloan Letter vision chart 1 features proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. This chart is part of the revised versions of the original ETDRS series with each line being equally difficult.
Dimensions: 24.5″ x 25.5″ (62 cm x 65 cm).
Testing distance: 10 feet/3 meters.
The 2000 Series Sloan Letter ETDRS vision chart 2 features proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Part of the revised ETDRS series with each line being equally difficult.
Dimensions: 24.5″ x 25.5″ (62 cm x 65 cm).
Testing distance: 10 feet/3 meters.
The 2000 Series Sloan Letter ETDRS vision chart 3 features proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Part of the revised ETDRS series with each line being equally difficult.
Dimensions: 24.5 in x 25.5 in (62 cm x 65 cm).
Testing distance: 10 feet/3 meters.
ETDRS eye chart – 2000 Series sloan letter vision chart 1 with proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Revised version of the original ETDRS series with each line being equally difficult. Chart measures 24.5″ x 25.5″ (62 cm x 65 cm)
13 feet, 4 meter testing distance
The 2000 Series ETDRS Sloan Letter vision chart 2 features proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Part of the revised ETDRS series with each line being equally difficult.
Dimensions: 24.5″ x 25.5″ (62 cm x 65 cm).
Testing distance: 13 feet/4 meters.
The 2000 Series ETDRS Sloan Letter vision chart 3 features proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Part of the Revised ETDRS series with each line being equally difficult.
Dimensions: 24.5″ x 25.5″ (62 cm x 65 cm).
Testing distance: 13 feet/4 meters.
ETDRS low contrast Sloan Letter vision charts with proportionally spaced (geometric progression) lines. Features translucent low contrast letters with line sizes ranging from 20/200 to 20/10 (6/60 to 6/3) equivalent. Available in 5 Contrast levels: 1.25%, 2.5%, 5%, 10% and 25%.
The 2.5% Contrast Charts is offered in 2 versions (500021 & 500021A). Both charts have a 2.5% Contrast level but the optotypes are scrambled for repetitive testing situations.
Dimensions: 24.5″ x 25.5″ (62 cm x 65 cm).
Testing distance: 13 feet/4 meters.
