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You’ve heard the warnings by now: don’t stare directly at the sunlight today during the solar eclipse — it might damage her eyes.

You are watching: How long can i look at the eclipse without glasses

Here’s a look in ~ what wake up if you do decide to disregard all the warnings and also cautionary tales.

YOUR EYES and also THE ECLIPSE


Like a camera lens, your pupils dilate, or open, in darkness to allow in more light. In Boston top top Aug. 21, the in its entirety sunlight will be dimmed, like as soon as clouds cover the sun. However if girlfriend look at the partial eclipse, the section of the sunlight that is clearly shows can reason permanent damages to your eyes.


ECLIPSE BLINDNESS

Prolonged exposure to the sun’s light can cause “retinal burns.” Exposure can damages or even damage cells in the retina (back that the eye) that transmit what you see to the brain. The damage can be short-lived or permanent and occurs with no pain. It can take a few hours come a few days after ~ viewing the solar eclipse to realize the damage that has occurred.

The symptoms:

■ Distorted vision

■ Altered color vision

■ Loss of central vision

SAFE means TO VIEW

Some safe ways to see the solar eclipse indigenous any new England vantage point:

■ Welder’s glass: Number 14 welders glass. It can be found at regional hardware and home-improvement suppliers.

■ Mylar filters: Aluminized mylar plastic sheets are available as eclipse vision glasses or can be cut and also made into a viewing box.

■ Pinhole projection: make a pinhole in a paper of cardboard and hold it between the sun and a paper of white file on the ground.

HAVE OTHER civilization SUFFERED after AN ECLIPSE?

Two guys are warning people around the threats of staring at the sun during the eclipse after castle did so decades earlier in Portland, Ore.

More than 50 year ago, louis Tomososki and also Roger Duvall stood and also waited, squinting toward the sky. Certain enough, the teens eventually spotted what they had been looking for: a partial eclipse the the sun.


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Both men, now 70, to speak they wish they had known about the long-term harm that afternoon would do to your eyesight.

‘‘We didn’t understand right that 2nd that us damaged our eyes,’’ Duvall claimed in a phone call interview Sunday. ‘‘At that time, we thought we were invincible, together most adolescents do.’’

Both calculation they had glanced up for around 20 seconds or therefore — each utilizing a various eye. Automatically afterward, Tomososki’s ideal eye and Duvall’s left eye bothered castle slightly.

‘‘We had looked down at the ground and also you’re still looking at component of the eclipse like it’s imprinted in your eye,’’ Duvall said.

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It was just through different eye exams later that both men learned they had permanently damaged your retinas. Because that Tomososki, his ‘‘good eye’’ compensates for his ‘‘bad’’ one once both are open. Once his left eye is closed, however, he sees a ‘‘scrambled, whitish spot’’ v his ideal eye.

‘‘Have you ever before seen a news story whereby they don’t desire the license plate seen at home? it is the precise same color of everything, except mine’s the size of a pea,’’ the said. ‘‘And that was 20 seconds worth the burning. If we had looked much longer — or the worst thing, if friend switch eyes looking in ~ the sunlight — then you’re in actual trouble.’’