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A softly lit pediatric eye examination room with a child-sized chair in the foreground and a blurred vision chart in the background, evoking clinical precision and pediatric vision testing.

LEA SYMBOLS® in Clinical Research: Why Standardized Pediatric Optotypes Matter

Optotype non-standardization is a hidden threat to pediatric clinical trial validity. This article examines why LEA SYMBOLS®, the only picture optotypes calibrated to the Landolt...