Faded letters, early warnings: A new clue for aging eyes (opens in new tab)

Struggling to read more than six lines on an eye chart with fading letters may serve as a visual "yellow light" for older adults—raising red flags that routine exams sometimes fail to detect. A new University of Michigan study, published in JAMA Ophthalmology, shows that this threshold on a Pelli-Robson chart might indicate everyday vision problems that standard eye tests may miss.