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	LEA RECTANGLES GAME® This educational toy is a modified version of Effron's rectangles and is used to assess size perception. The LEA RECTANGLES GAME® contains two groups of rectangles. A child with normal vision can visually distinguish between a longer and a shorter rectangle often before the age of 3...
	Distance Vision Charts for Self Illuminating Viewer Adult Distance Vision Viewer is a proportionally spaced acuity card for the the Self Illuminated Viewer. It primarily tests distance vision by identifying the different numbers and/or letters from 10ft/3m away. It is illuminated by the light located in the self-illuminating cabinet....
	HEIDI® Expressions Test Game Some children with brain damage-related vision loss may achieve near normal results in routine vision tests (large visual field and normal or near normal visual acuity), but cannot interpret facial expressions or recognize people's faces. The HEIDI® Expressions test game improves...
	LEA SYMBOLS® Translucent 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...
	HIDING HEIDI® Low Contrast Face Test Visual communication is the most important communication method during the first year of life. The ability to detect objects of low contrast is an important component of the visual system. For example, facial expressions are mediated by faint shadows and changes in the contours of the...
	Self Illuminating Near and Distance Viewer Kit Self Illuminated Near Cards has an LED backlit display that standardizes illumination and lights up LEA SYMBOLS®, LEA NUMBERS® and Sloan symbols. There is no need to bring over a lamp for the patient to read the card. This assessment chart is well protected in a rubberized sure grip...
	LEA™ Low Contrast Grating Acuity Test Measurement of contrast sensitivity curve is based on 4 gratings at 2 contrast levels, 10%, and 2.5% contrast using 2 grating frequencies: 0.5 cpcm and 8 cpcm (10% level) or 0.5 cpcm and 4 cpcm (2.5% level). Testing is based on finding the distance where the person is at threshold in...
	LEA SYMBOLS® ETDRS Translucent Distance Charts (13 feet/4 meters) LEA SYMBOLS® ETDRS Chart for 13ft/4m. Proportionally spaced (logMAR) lines; line sizes range from 20/160 to 20/8 (6/48 to 6/2.4) equivalent, 0.90 to 2.50. Includes response key, training cards, and instructions.Chart size is 24.5" x 25.5" (62cm x 65cm) and screen printed on styrene...
	LEA GRATINGS®, a Preferential Looking Test LEA GRATINGS® are for preferential looking test situations with infants or children and adults with disabilities to determine detection acuity. Grating levels printed on each handle are: 0.25, 0.5, 1.0, 2.0, 4.0 and 8.0 cpcm (cycles per centimeter of surface).Includes instructions...
	HEIDI® Face Disposable Occluder These easy to use disposable occluders are a perfect addition to any vision testing or screening program. Printed on sturdy card stock with HEIDI® Smiling Face for fixation. Each package contains 50 occluders glued along the edge for easy storage.