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LEA SYMBOLS® 10-LINE DISTANCE CHARTS 3 m 52054
The Symbol :
250250
LEA SYMBOLS® 10-LINE DISTANCE CHARTS
Kolor/Wzór
394.00
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Zamówienie telefoniczne: 22 651 82 85
This test is most commonly used in the health care of children at the age of 3 to 4 years and in amblyopia screening in many countries.
Features proportionally spaced (logMAR) lines; line sizes range from 20/200 to 20/16 (6/60 to 6/4.8) equivalent, 0.1 to 1.25. The 20/160 (6/48) and 20/100 (6/30) lines have been omitted. The reverse side is black and can be used as the test surface for the Color Vision, test (#260260). Has a hole for hanging the chart on the wall. Includes response key and instructions.
Dimensions: 16" x 16" (40.6 cm x 40.6 cm). Folds to 16" x 8" (40.6 cm x 20.3 cm).
Testing distance: 10 feet/3 meters.
Click here for the 250250 & 250150 Guide.
Przykładowe przeprowadzenie badania :
Instrukcja użytkowania
Przelicznik skali Decimal/Snellen
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