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Safely View a Solar Eclipse. Our solar-eclipse glasses provide eclipse safety for viewing all solar eclipses. Eclipse glasses, and eclipse viewers, block out 100% of harmful ultra-violet rays, 100% of infrared, and 99.999% of intense visible light, protecting your eyes and letting you view these spectacular natural phenomena.
Eye Safety During Solar Eclipses. Fred Espenak. Adapted from NASA RP 1383 Total Solar Eclipse of 1998 February 26, April 1996, p. 17. The Sun can be viewed safely with the naked eye only during the few brief seconds or minutes of a total solar eclipse. Partial eclipses, annular eclipses, and the partial phases of total eclipses are never safe to watch without taking special precautions.