2000 Series Revised ETDRS Chart 3

$65.00

This revised eye chart incorporates a slight change in the difficulty score for each of the ten SLOAN letters derived from the best corrected visual a

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Description

This revised eye chart incorporates a slight change in the difficulty score for each of the ten SLOAN letters derived from the best corrected visual acuity examinations of 7,420 eyes during the ETDRS study.

Can be wall-mounted.

ETDRS 2000 Series charts utilize a geometric progression from line to line. Each optotype on the chart is proportionally spaced. By using these types of progression and spacing the chart becomes balanced and equal. This give the patient a well calibrated test that can be reused, relied on, and trusted.

Additional information

Patient Type

General/Literate

Utilize with a Cabinet

Yes

Utilize with which Cabinet

2425

Contrast Level

High

Optotype

SLOAN

MassVAT Chart

No

Chart Distance

2m / 6.5ft, 2.5m / 8.3ft, 3m / 10ft, 4m / 13ft

Optotype Arrangement

ETDRS Format – Logarithmic

ETDRS Format

Yes

Translucent Chart

Yes

Cord

No

Chart Size (Inches)

24.5×25.5 in, 24.5×25.5 in

Chart Size (cm)

62×65 cm

Chart Notations - Munit

40M to 2M

Chart Notations - LogMAR

1.0 to -0.3

Chart Notations - Decimal

.10 to 2.00

Chart Notations - 4 meter

4/40 to 4/2

Chart Notations - 13 foot

13/131 to 13/6.5

Chart Notations - 6 meter

6/60 to 6/3

Chart Notations - Snellen

20/200 to 20/10