ETDRS charts for Illuminator cabinet 4M ( 13 feet ), Ophthalmic Clinical Research
SKU : 2110
Original Series Sloan Letter ETDRS Chart R
SKU : 2110
Designed for use in clinical studies and low vision evaluations where accurate, repeatable visual acuity measurements are required.
Designed for use in clinical studies and low vision evaluations where accurate, repeatable visual acuity measurements are required.
Can be wall-mounted.
ETDRS charts use a geometric progression from line to line, making only the
optotype size a variable. Lines and optotypes have been calibrated to be equally difficult. ETDRS chart is reliable for accurate acuity testing in clinics, research, and studies world wide.
| Brands | Precision Vision |
|---|
Dimension : 27 × 27 × 0.04 in
LogMar Values : Yes
Testing Distance : 2 Meter, 2.5 Meter, 3 Meter, 4 Meter
Optotypes : Sloan
Contrast : No
Material : Plastic
Front Side : Yes
Back Side : No
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BRVT The Berkeley Rudimentary Vision Test
For Visual acuity levels beyond the limit of the letter charts, the common practice is for clinicians to categorize vision according to whether the patient can count fingers (CF) or detect hand motion (HM), but there is no recognized or standard procedures for doing this.
SKU: 4500
