Shit, this isn't really that funny when you find out what happened. Welder's Eye can make you permanently blind.
Some ApeFest attendees posted on X (formerly Twitter) after seeking medical attention, with one person reporting that they had been diagnosed with Photokeratitis — aka, “welder’s eye,” a condition caused by unprotected exposure to ultraviolet radiation — and another saying the issue was a result of UV from the stage lights, leading to speculation that the injuries were caused by improper lighting used at the event.
“I woke up at 04:00 and couldn’t see anymore,” said @CryptoJune777. “Had so much pain and my whole skin is burned. Needed to go to the hospital.”