Polarized Glasses set of 2 , Adult and Pediatric glass

The Patti Pics™ Series ETDRS® Set of 3 — Chart 1, Chart 2, and Chart 3 at the 2 m testing distance — designed as alternate-form charts for use in rotation across repeat visits or for testing each eye on a different chart. Compatible with the 2425 / 2425 LED Large ETDRS® Illuminator Cabinets.