UNITED KINGDOM—Vision Direct—Europe’s largest online contact lens supplier—and Fight for Sight—a UK charity dedicated to funding pioneering research to prevent sight loss and treat eye disease—have teamed up for the second year in a row to launch the #ThinkUV campaign.

The two are urging the nation to protect their eyes and think about the dangers of ultraviolet (UV) rays this summer. As part of their campaign, they’ll be encouraging everyone to take a sunglass selfie to raise funds for pioneering research into sight loss prevention.