Britons may be unable to safely look at tonight's solar eclipse after specialist glasses went out of stock. Colanders are one way to view the solar eclipse without specialised glasses | GETTYBritons can also make a simple pinhole projector to view the eclipse, where more than 90 per cent of the Sun will be covered by the Moon. Briton may struggle to find solar eclipse glasses and turn to alternative viewing methods | GETTYNasa has told viewers not to video the eclipse on their mobile phones, warning that the sensors in a phone camera could be damaged without a special solar filter. "To take images when the Sun is partially eclipsed, you'll need to use a special solar filter to protect your camera, just as you'll need a pair of solar viewing glasses (also called eclipse glasses) to protect your eyes," Nasa said. After the 1999 total solar eclipse, the Royal College of Ophthalmologists reported around 70 cases of people experiencing vision problems from looking up, the UKHSA said.