This chart featuring LEA NUMBERS® is designed to measure visual acuity with a standard line test and with three tighter spaced tests; 50%, 25%, and 12.5% which often reveal difficulties in seeing tightly crowded details. Line sizes range from 20/400 to 20/10 (6/120 to 6/3) equivalent, 0.05 to 2.00.
Dimensions: 8" x 10" (20.3 cm x 25.4 cm).
Testing distance: 16"/40cm.
Note: All products sold on Accuspire.com should be used by qualified clinician and should be purchased by or on order of a qualified clinician.
This card combines a LEA SYMBOLS® line test on one side and a LEA NUMBERS® line test on the opposite side. Features proportionally-spaced lines from sizes 20/400 to 20/10 (6/120 to 6/3)...
A LEA NUMBERS® standardized near vision adult chart for illuminated cabinets. This chart displays two tests in an ETDRS format with proportionally spaced (logMAR) lines. Line sizes range...
This standardized adult vision assessment chart is designed to measure visual acuity with a standard line test and with three tighter spaced tests; 50%, 25%, and 12.5% which often reveal difficulties...
This test assesses the functional vision of a child at near distances and can also be used to familiarize a child with the testing procedure before introducing a distance test. Features...
These five LEA NUMBERS® Cards can be used for presentation as single optotypes or arranged in a row as a line test. When the cards are next to each other, the space between the numbers is equal...
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