A distance chart with wide-spaced lines; line sizes range from 20/160 to 20/16 (6/48 to 6/4.8) equivalent. This chart can be used in an illuminated ESV1018 cabinet or hung on the wall.
Dimensions: 10″ x 18″ (25.4 cm x 45.7 cm).
Testing distance: 10 feet/3 meters.
For qualified medical professional use only. Refer to User Manual for Canadian approved indication for use, cautions and precautions.
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