| Features | - For testing at 4 meters (13 ft.)
- Acuity range 40M to 2M (20/200, 6/60 to 20/10, 63 equiv.)
- Measures 62 X 65 cm (24.5 X 25.5 in.)
- Fits ETDRS Illuminator Cabinet CAT. NO. 2425
- Can also be wall-mounted
- Printed on high-impact polystyrene
| - For testing at 4 meters (13 ft.)
- Acuity range 40M to 2M (20/200, 6/60 to 20/10, 6/3 equiv.)
- Only standardized vision test accepted in studies sponsored by the National Eye Institute
- Designed for use in clinical studies and low vision evaluations where accurate, repeatable visual acuity measurements are required
- Lines are of equal difficulty
- Geometric progression in letter size from line to line
- Letter size is only variable
- Measures 62 X 65 cm (24.5 X 25.5 in.)
- Chart fits the ETDRS Illuminator Cabinet CAT. NO. 2425
- Can be wall-mounted
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