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	Phoropter Roto Chart 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...
	LEA Flicker Wand® The LEA FLICKER WAND® is 26.5" (67.3 cm) long with a 20" (50.8 cm) flexible wand with a diode at the end that can be used as either a flickering or non-flickering stimulus at 4, 40 and 400 cd/m2. The curved wand is moved from behind the person forward in all four quadrants of the...
	LEA NUMBERS® ETDRS-style Low Contrast Charts LEA NUMBERS® ETDRS-style Low Contrast Vision Chart with proportionally spaced (geometric progression) lines translucent low contrast letter chart with line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Available in 2 contrast levels: 2.5% and 10%. Chart size is 24.5" x 25.5...
	LEA NUMBERS® Intermediate Vision Card This standardized adult vision assessment 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)...
	LEA NUMBERS® Single Number Book The LEA NUMBERS® Single Number Book is ideal for situations in which the child/adult cannot perform when tested with a line test. This book can help determine the best resolution of the visual pathway in a child/adult with amblyopia or impaired vision. Single optotype line sizes range...
	LEA NUMBERS® and Landolt C Near Vision Card This easy to use visual acuity near vision card features Landolt C on one side and LEA NUMBERS® on the other. This standardized test includes both sides of the chart and have optotypes in proportionally spaced (logMAR) lines with line sizes ranging from 20/400 to 20/10 (6/120 to 6/3)...
	LEA NUMBERS® Near Vision Cabinet Chart LEA NUMBERS® standardized near vision adult chart for illuminated cabinet. This light box displays 2 charts printed on one card for repetitive testing. Chart has LEA NUMBERS in ETDRS format with proportionally spaced (logMAR) lines; line sizes range from 20/400 to 20/10 (6/120 to 6/3...
	LEA NUMBERS® Cards, 40M and 60M 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 to the width of the symbols. To determine the visual acuity use the following formula:VA=...
	LEA NUMBERS® Chart for Vision Rehabilitation This test is designed for testing children and adults with visual impairment at a distance of one meter. The LEA NUMBERS® in this assessment include the largest numbers being 50M in size, corresponding to 1m/50M = to 1/50 or decimal visual acuity 0.02, equivalent values 20/1000, 6/300....
	LEA NUMBERS® Low Contrast Charts for Illuminated Cabinet A low contrast test is a special way to measure visual acuity; determining how well eyes function in low light situations and/or being able to distinguish objects from similarly colored or shaded backgrounds. Testing is identical to the measurement of visual acuity at high contrast level...