How To Use Solar Eclipse Viewing Glasses Safely
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Always inspect your solar eclipse viewing glasses before use; if scratched, punctured, torn, or otherwise damaged, discard them. Read and follow any instructions printed on or packaged with the glasses.
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Always supervise children using solar eclipse viewing glassess.
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If you normally wear eyeglasses, keep them on. Put your solar eclipse viewing glasses on over them or hold your handheld viewer in front of them.
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Stand still and cover your eyes with your solar eclipse viewing glasses before looking up at the bright sun. After looking at the sun, turn away and remove your solar eclipse viewing glasses—do not remove them while looking at the sun.
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Do not look at the uneclipsed, partially eclipsed, or annulary eclipsed Sun through an unfiltered camerea, telescope, binoculars, other optical device, or your eyes.
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Similarly, do not look at the sun through an unfiltered camera, telecope, binoculars, or any other optical device while using your solar eclipse viewing glasses or handheld solar viewer in front of your eyes—the concentrated solar rays could damage the filter and enter your eyes, causing serious injury.
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Seek expert advice from an astronomer before using solar eclipse viewing glasses with a camera, telescope, binoculars, or any other optical device; note that solar filters must be attached to the front of any telescope, binoculars, camera lens, or other optics.
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Sunglasses are NOT safe to use to view the sun.