Distance chart ETDRS "Study 1" (62 x 65 cm)

Distance chart ETDRS format, version "1" in logarhytmic design. test distance 4m. Each line comes with 5 Sloan letters. Made of translucent plastic. Made for standard illuminated cabinets, and direct wall mount (without holes). Ideal for clinical trials and for sportsvision. This chart is also available in 2 other versions (scrumbled letter order).
Chart size: 62 x 65 cm. Cabinet see item 81014. Caster base see item 81017. Manufacturer no.: 2111.