To safely view a solar eclipse, it is important to wear special-purpose solar filters that are at least 1,000 times darker than ordinary sunglasses. Here are some tips on what glasses to wear for a solar eclipse:

• ISO Certification: Make sure that the glasses you use to view a solar eclipse meet the ISO 12312-2 international safety standard. Filters that are ISO 12312-2 compliant not only reduce visible sunlight to safe and comfortable levels but also block all but a tiny fraction of solar UV and IR radiation.

• Reputable Sellers: Buy from reputable sellers that have been approved by the American Astronomical Society to ensure that the glasses meet current safety standards.

• Avoid Counterfeit Glasses: Avoid buying cheap solar-eclipse glasses from places like Amazon or eBay, as they may be unsafe or counterfeit.

• Eclipse Glasses: Use special-purpose solar filters made for direct viewing of the uneclipsed or partially eclipsed Sun with your eyes. Eclipse glasses and handheld viewers should never be used when looking through telescopes, binoculars, or cameras.

• Sunglasses Wont Do: Do not use sunglasses to view a solar eclipse, as they are made of very different materials and wont provide your eyes with adequate protection.

Some recommended brands of solar eclipse glasses include Celestron EclipSmart Solar Eclipse Glasses, Rainbow Symphony Plastic Eclipse Glasses, and Lunt Solar Systems Premium Solar Eclipse Viewing Glasses.