A total solar eclipse will be sweeping over Wyoming on Aug. 21. I suggest you get one important item ready as soon as possible, if you want to save your vision.

Staring at the sun, even when it is partially covered by the moon, can cause serious eye damage.

You have several options for viewing the event, but for direct viewing, you’ll need special solar-viewing glasses. You can buy them, or you can get them for free.

Some 4,800 U.S. public libraries and library organizations will be giving away more than 2 million pairs of free eclipse glasses.

The glasses come with a helpful booklet about the eclipse. You can download a copy here.