Find the Best Places to Watch the Total Solar Eclipse with NASA Maps (Photos).2017 Total Solar Eclipse: Everything You Need to Know.This damage is often painless, so people don't realize what they're doing to their vision. When they're over-stimulated by sunlight, they release a flood of communication chemicals that can damage the retina. The retina is home to the light-sensing cells that make vision possible. So, wear sunglasses as often as it makes sense to.The condition is called solar retinopathy, and it occurs when bright light from the sun floods the retina on the back of the eyeball. That can be surgically removed, however.Ĭhronic sun exposure can also contribute to formation of cataracts and macular degeneration. If very severe, it can start to obscure your vision and cause irritation from time to time. It's found very commonly in people who live or grew up in equatorial regions, and a lot of surfers get it because the water reflects UV into eyes. If you are outdoors a lot you can get a growth on the surface of your eye, called pterygium. But there are different ways you can get damage from the sun in your eyes. In summer, of course, since we're closer to the sun. In his retina there was a pigmented spot and his vision was very poor, needless to say. I don't know if it was during an eclipse, but he said he was on LSD and looked at the sun for four straight hours. I had a case many years ago of a gentleman who had a condition called solar retinopathy. Have you had a patient who had eye damage from looking at the sun? The sun will cast its rays through the pinhole. Cut a hole in one and again, turn your back to the sun and hold it up against the second one. Or, take two pieces of cardboard or paper. Put your phone camera on selfie mode, then turn your back to the sun and see the eclipse that way. The best alternative is to visualize it from an indirect method. They filter out a lot more of the sun's harmful radiation - something like 100,000 times more than standard sunglasses. What makes ISO-approved glasses safe? Are there alternatives? Just to be clear: on non-eclipse days, is it still unsafe to look at the sun? It's similar to getting sunburned on a cloudy day. The reason it's more dangerous during the eclipse is because you don't feel much discomfort, yet your eyes are receiving all the harm. Look, no one loves to look at the sun: it hurts. Because we have a partial eclipse, there is a zero-second window where it's safe to look at the sun directly. If you're in that 70-mile swath where you'll be able to see the total eclipse, you have about a two-minute window where the sun is 100 percent eclipsed. GLASSES: 5 places to get eclipse glasses before the big day Is there a difference if you're looking at a partial or total eclipse? The retina can't heal itself, so the blind spot is permanent and cannot be treated, but definitely go see a doctor to make sure it's the right diagnosis.ĮCLIPSE GUIDE: Everything you need to know about the solar eclipse We don't have pain fibers there so you won't have discomfort or feel pain, but you might see a fuzzed out, dark spot. So looking at the sun too long is almost like burning a hole in the center of your film, or retina. The eye works like a camera, and the retina is like the film of your eye. Five seconds, I'm not sure, but 10 seconds is probably too long and 20 seconds is definitely too long. If you look at it for a second or two, nothing will happen. What happens if someone looks directly at the sun during the eclipse? Jacob Chung, Chief of Opthalmology at Englewood Hospital and Medical Center, answered our burning (ahem) questions about what'll happen if you just can't help but take a peek - sans ISO-approved glasses - during the big event. You've heard over and over that you shouldn't look up at the sun during Monday's solar eclipse (or ever, as a general rule), but what actually happens if you do?ĭr. Watch Video: Experts warn against counterfeit eclipse glasses
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