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LEA SYMBOLS® pediatric symbols eye chart with linear-spaced optotypes in the following size equivalents: 20/60, 20/50, 20/40, and 20/32, 20/25, 20/20, 20/16, and 20/12.5. Two lines of each size with 5 optotypes on each line.This test set is included with 915000 Complete LED Insta-... |
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The Vision in Preschoolers (VIP) Study, sponsored by the National Eye Institute, initially evaluated 11 vision screening tests in Phase I, including 2 distance visual acuity eye charts – LEA SYMBOLS® and HOTV. LEA SYMBOLS® was the only distance visual acuity test to move on to Phase 2.... |
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LEA NUMBERS® eye chart with linear-spaced optotypes in the following size equivalents: 20/60, 20/50, 2/40, 20/32, 20/25, 20/20, 20/16, and 20/12.5. Two lines of each size with 5 optotypes on each line. Includes chart and switch box overlay. Included with 915000 LED Insta-Line Quantum... |
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The Vision in Preschoolers (VIP) Study, sponsored by the National Eye Institute, initially evaluated 11 vision screening tests in Phase I, including 2 distance visual acuity eye charts – LEA SYMBOLS® and HOTV. LEA SYMBOLS ® was the only distance visual acuity test to move on to Phase 2.... |
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LEA NUMBERS® distance eye chart with proportionally spaced (logMAR) lines; line sizes range from 20/80 to 20/8 (6/24 to 6/2.4) equivalent, 0.25 to 2.50.20 feet, 6 meter testing distance |
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The Vision In Preschoolers (VIP) pediatric vision test can now test for threshold. The threshold housing contains 20/20 and 20/16 LEA SYMBOLS® pediatric symbols with 50% spaced crowding bars for both left and right eyes.The Vision in Preschoolers (VIP) Study, sponsored by the National Eye... |
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The Vision In Preschoolers (VIP) pediatric vision test can now test for threshold. The threshold housing contains 20/32 and 20/25 LEA SYMBOLS® pediatric symbols with 50% spaced crowding bars for both left and right eyes.The Vision in Preschoolers (VIP) Study, sponsored by the National Eye... |
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The Vision in Preschoolers (VIP) Study, sponsored by the National Eye Institute, initially evaluated 11 vision screening tests in Phase I, including 2 distance visual acuity eye charts – LEA SYMBOLS® and HOTV. LEA SYMBOLS® was the only distance visual acuity test to move on to Phase 2.... |
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Near vision roto chart for your phoropter contains a wide variety of tests for the eye care professional. Fits on a phoropter using both the phoropter rod & clip, Notched wheel for easy chart selection. The Phoropter Chart 2 contains the following tests:Sloan Letters; line sizes... |
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This versatile near point roto chart for your phoropter contains a wide variety of tests for the eye care professional. Fits on a phoropter using both the phoropter rod & clip, Notched wheel for easy chart selection. The Phoropter Chart contains the following tests:Sloan Letters; line... |