Two smaller groups 10/20 to 10/80 for repetitive eyesight testing (20/40 to 20/16 equiv.).
Can be wall-mounted.
HOTV optotypes are practical for use in schools for large vision screenings of younger children. HOTV chart features notations printed on each side of the chart to help prevent confusion while scoring and recording acuity vision. Also, HOTV chart includes a response key (CAT. NO. 2011 and 2012) for more precise scoring and easier vision testing. Preliterate children can use the response key to point to what letter they see, or hold up flash cards for each optotype.