Solar eclipse glasses sold out across Ireland – safe ways to watch today's eclipse without themSolar eclipse glasses have sold out across the UK ahead of today's near-total solar eclipse, but experts say there are still safe ways to watch – here's everything you need to know to protect your eyesight. ‌That said, those eager to witness the UK's first near-total solar eclipse since 1999 can still do so safely through alternative methods. ‌Specialist eyewear has been hoovered up in anticipation, with corner shops, national parks and the Royal Observatory Greenwich all running dry. Proper eclipse glasses must comply with the ISO 12312-2 safety standard, as uncertified versions could expose eyes to dangerous solar radiation. What harm can gazing directly at the solar eclipse inflict?