20 ft: TZO (9 Line) Chart

(9" x 14") Snellen optotype chart for vision testing at 20 feet. Features two smaller groups 20/25 to 20/12.5 for repetitive eye testing. May be wall mounted or used with illuminated cabinets (66003, 66004, 66016, 66090).

Traditional Snellen optotypes have changed little throughout the years, are great for school vision screenings, and are used regularly today. These optotypes feature strong serifs in the letters C, D, E, F, L, O, P, T.