Notations for vision testing at 4 Meters (13 ft.)
Acuity range 20M to 2M (20/100, 6/30 to 20/10, 6/3 equiv.)
Measures 62 X 65 cm (24.5 X 25.5 in.)
Includes response key (Cat.No. 2011 and 2012)
Fits ETDRS Illumination Cabinet Cat.No. 2425 or can be wall-mounted
HOTV chart uses a 50% spacing to incorporate interaction bars around each optotype. The interaction bars help the patient to better define each optotype. Also, the interaction bars help to detect early signs of functional defects like Amblyopia. HOTV optotypes are useful for testing preliterate children.
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