Seeing a total solar eclipse can be the event of a lifetime, but looking at the sun without the proper eyewear can lead to vision issues that could linger as long as memories. Eclipse glasses are the most popular way to safely look at the sun, as they use specially designed solar filters that can be worn with ease. "Eclipse glasses are NOT regular sunglasses; regular sunglasses, no matter how dark, are not safe for viewing the sun," NASA explained. The solar filters used in eclipse glasses are t