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20/200 to 20/10 size. 22-1/2" x 11" Item #: BC1243
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Proportionally spaced (logMAR); line sizes range from 20/100 to 20/8 (6/30 to 6/2.4) equivalent, 0.20 to 2.50. This chart can either be wall mounted or used in an ESV1200 illuminated cabinet.
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Illiterate Tumbling E ETDRS vision chart with proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent.
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9" x 14" Translucent Plastic May be used with illuminated test cabinets or as a wall chart 20/100 to 20/10 Item #: BC1263
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Proportionally spaced (logMAR); line sizes range from 20/125 to 20/8 (6/38 to 6/2.4) equivalent, 0.16 to 2.50. This chart can either be wall mounted or used in an ESV1200 or Model A+ illuminated cabinet. Includes response key, training cards, and instructions. 10 feet/3 meters testing distance
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The Sheridan-Gardiner Test contains both near vision and distance vision tests according to the Faculty of Ophthalmologists and Snellen Standards. This Test also includes a reduced Snellen Test. Testing depends on matching shapes rather than identifying or naming letters. All are reversible. The Sheridan Gardiner Test is primarily designed for children but is also usable for deaf mute or other patients unable to interact with traditional letter based visual acuity tests. Results are more reliable than illiterate E or similar tests. A series of orthoptic booklets in washable plastic finish are included with the basic kit to augment the range of letters in each size.