For testing at 3 meters (10 ft.)
Acuity range 30M to 1.5M (20/200, 6/60 to 20/10, 6/3 equiv.)
Test includes soft-tipped pointer, 50 recording forms (CAT. NO. 2514) and test instructions
Measures 62 X 65 cm (24.5 X 25.5 in.)
CAT. NO. 2425 Illuminator Cabinet is necessary with these translucent low contrast charts
Contrast sensitivity charts are calibrated using ETDRS sized retro illuminated cabinet (Cat. No. 2425). Contrast sensitivity tests require a constant retro illumination to maintain accurate contrast levels and test results. The ETDRS sized illuminator cabinet provides an optimal light source for consistent testing and reliable test recordings.
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