10 ft: HVOTV (9 Line) Chart Promo Long-lasting relief from pain associated

Long-lasting relief from pain associated with headaches

This book will provide you with concepts

10 Levels of adjustable brightness

packaged in a convenient

Large colorful LCD display screen

10 ft: HVOTV (9 Line) Chart Promo Long-lasting relief from pain associated(9" x 14") HOTV optotype chart for vision testing at 10 feet. Features two smaller groups 10 20 to 10 80 for repetitive eyesight testing (20 40 to 20 16 equivalent). May be wall mounted or used with illuminated cabinets (66003, 66004, 66016, 66090). HOTV optotypes are practical for use in schools for large vision screenings of younger children. Used for school screening stations nation wide, HOTV charts are also useful for all other preliterate