Key Points
Millions of people along a narrow band in North America will look up when the sky darkens during a Total Solar Eclipse on April 8..
Staring directly at the sun during a Solar Eclipse or at any other time can lead to permanent eye damage..
The Eclipse is only safe to witness with the naked eye during totality, or the period of total darkness when the moon completely covers the sun...
Old Eclipse glasses from the 2017 Total Solar Eclipse or October's Ring of Fire Annular Eclipse are safe to reuse, as long as they aren't warped and don't have scratches or holes..
In a rare case of Eclipse eye damage, a woman who viewed the 2017 Eclipse without adequate protection came to Mount Sinais New York Eye and Ear Infirmary, complaining of a black spot in her vision..
