Graham-Field Pocket Size Plastic Eye Chart, 6 3/8" x 3 ½", 1 Count (Pack of 1)
Precise, clear, legible; provides 20/800 distance equivalent testing at 14". Pocket Vision Screener Instructions: Visual acuity (Va) can be assessed by using the Pocket Vision Screener (not to be confused with the larger Snellen eye chart). The Pocket Vi