Can the solar eclipse harm the eyes?

Many watchers of today’s solar eclipse may have glanced at the sun without proper eye protection, if only for a brief moment. This can be dangerous, as looking directly at the sun can cause eye damage. But how do you know if you’ve hurt your eyes?

The solar eclipse wowed viewers across the United States today (Aug. 21) as it passed from the West Coast to the East Coast. As millions tried to catch a glimpse of the phenomenon, many may have taken a peek without proper eye protection, either intentionally or by accident. Even President Donald Trump was photographed apparently looking sunward at the eclipse without eye protection.

Experts stress that you should not look directly at the sun without proper eye protection, which includes special eclipse glasses or solar viewers. That’s because looking directly at the sun, even for a short period, can cause damage to the eyes’ retina — a condition known assolar retinopathy. The damage occurs in the fovea, a spot in the retina that is responsible for sharp, central vision, according to the American Academy of Ophthalmology (AAO).

There’s no amount of time that’s considered “safe” to look at the