The August 21 total eclipse of the sun is on the move. The American Optometrist Association recommends wearing eclipse glasses that meet the international standard ISO 12312-2.
The August 21 total eclipse of the sun is on the move. The American Optometrist Association recommends wearing eclipse glasses that meet the international standard ISO 12312-2. Handout TNS
The August 21 total eclipse of the sun is on the move. The American Optometrist Association recommends wearing eclipse glasses that meet the international standard ISO 12312-2. Handout TNS