Any time you look at anything, a tiny image of it is focused onto the retina in the back of
your eye. If you had a tiny piece of film back there, you'd get a picture of whatever you're
looking at.
If the thing you're looking at also happens to be sending out heat in addition to light, then the
heat also gets focused onto the retina in the back of your eye. You're not aware of it, because
our eyes aren't tuned to respond to heat. But it's there.
That's why it's dangerous to look at the sun. It's a very intense source of heat, so at the same
time you're looking at it and forming a tiny image of it on the retina in the back of your eye, you're
also forming a tiny, very intense hot spot on your retina.
Have you ever used the sun and a magnifying glass to burn a piece of paper or cook an ant ?
That tiny hot spot is the same as the spot that appears inside your eye when you look at the sun.
If you leave it there long enough, you wind up with a small, permanent blind spot in your eye, right
there in the middle where you put the things that you want to see most clearly.
All of this is true any time the sun is up, and that includes the time during an eclipse. The thing
about an eclipse is that when strange things are happening with the sun, everybody is standing
there saying "Wow! Cool! Look at that! I've never seen anything like it. Everybody look at the sun!".
And then everybody else stops what they're doing and looks at the sun. So during a solar eclipse,
you have a lot of people who would never look at the sun, and they're staring at the sun.
That's what's dangerous about a solar eclipse.
Dark glasses Those bolcks Ultra voilet rays to safety of eyes
you have to wear safety glasses
its happens when the sun is BEHIND the moon it starts to get all dark.(: for safety you might want to use sunglasses when it happens!:)
Industrial safety glasses tend to be made of much sturdy material than regular safety glasses and not all match the same strength. It would be better advised to purchase industrial safety glasses if a job calls for it.
You can find the lowest price on safety glasses ob a website called www.safetyglassesusa.com. They specialize in giving you the highest quality safety glasses.
wear a helmet rather than safety glasses
your local neighborhood ads is the best way to start looking for your cheap safety glasses as a gift. amazon.com is a great site and shipping is fast. www.utilitysafeguard.com/Safety/Safety-Glasses/!!
Normal glasses are never a subsitute for safety glasses because they are not rated to take hard impacts and blind you if break from an impact.
This is suggestion for you. When you are searching best online glasses so, eyeweb is a plat form they are selling best quality of glasses. I have a link of this site which is I was mentioned in my post, Thank you!!
Prescription glasses generally do not provide sufficient eye protection, particularly on the sides. There are several styles of laboratory eye protection that are designed to fit over prescription glasses; you should wear the prescription glasses and safety glasses or safety goggles as well. It's also possible to buy prescription safety glasses, but they're fairly expensive. Again: Ordinary prescription glasses are not a substitute for safety glasses/goggles.
I highly dout it, but i guess that it really depends on what kind of safety glasses you are wearing.
One should wear safety glasses to prevent things from getting into the eyes. Another reason to wear safety glasses is so that heat and sparks don't irritate them.