PV Numbers Non-Reflective Translucent Distance Chart

Precision Vision Verified independent store

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Two smaller groups 4.8M to 1.2M for repetitive testing (20/32, 6/9.5 to 20/8, 6/2.4 equiv.). Can be wall-mounted. Useful for testing sight in multiple languages. Also helpful for t esting preliterate and illiterate patients. Traditional design and proportional spacing help insure accurate testing. PV Numbers are calibrated comparatively to our Patti Pics series charts: on the basis of the 5x5 Snellen grid and calibrated for equal recognizability against Sloan letters. Even illiterate adults can often recognize numbers. Deaf or mute adults can indicate the number seen with simple finger signs. Show more