WaSun to launch adaptive prescription eyewear with on-demand tinting in 2026
UK and Saudi Arabia based eyewear company WaSun is preparing to launch a range of adaptive prescription eyewear built around electrochromic lenses, with a market launch planned for 2027.
Unlike photochromic lenses, which darken in response to UV light, WaSun’s lenses are electrically controlled. A tap on the frame shifts them from clear to tinted in around five seconds, and back again on command. Because the tint doesn’t rely on UV, the lenses can be activated behind a windscreen and switched back to clear on demand indoors, rather than waiting for the lens to react naturally.


For dispensing, the switching layer sits separately from the prescription optics, so lenses can be glazed as normal. The frame houses a rechargeable battery designed to last around seven days per charge, topped up via a magnetic connector.
WaSun is aimed at wearers who move frequently between different lighting conditions — commuters, drivers, and people with light sensitivity, for whom a fixed or slow-reacting lens can be a poor fit. The company is careful not to overstate any clinical role, noting that applications in practice would need supporting evidence.
“We built WaSun to give the wearer direct control over their tint, rather than waiting for the surrounding light conditions to decide for them,” said Sam Hussain, Founder and CEO of WaSun. “We’re aiming to launch in 2027, and we’re keen to work alongside the optical profession as the product comes to market.”
WaSun is a UK/Saudi Arabia based eyewear company developing adaptive electrochromic prescription eyewear.





















