Use this small pocket card to quickly determine whether a child’s visual acuity is within normal range. Proportionally spaced lines on one side and 50% spaced rectangle (Massachusetts Visual Acuity Test format) on the reviews. Line sizes 20/400, 20/320, 20/250, 20/200, 20/160, 20/125, 20/100, 20/80, 20/63, 20/50, 20/40, 20/32, 20/25, 20/20, 20/16, 12/12.5, and 20/10 (6/120 to 6/3 equivalent).  

Shows Snellen in Feet and Meters, Letter size and Decimal.

Card measures 3.75” x 6.25” (9.5 cm x 16 cm). 

250900.