British consumers are being warned to avoid cheap or counterfeit solar-eclipse glasses ahead of a partial eclipse this Wednesday [1].
Using non-certified eyewear can lead to permanent eye damage because knock-off glasses may fail to filter harmful solar radiation [1]. Experts said that only safety-certified glasses provide the necessary protection for viewing the sun.
The warning comes from a coalition of eye doctors, astronomy experts, and UK agencies, including the Met Office and the Royal Observatory Greenwich [1]. These organizations are urging the public to verify the certification of their protective gear before the event occurs on Wednesday, Aug. 12 [2].
During the eclipse, more than 90% of the sun will be obscured over the United Kingdom [4]. While the reduction in light may make the sun appear less intense, the remaining radiation is still powerful enough to cause ocular injury without proper filtration [1].
Authorities said that counterfeit products often mimic the appearance of professional equipment but lack the rigorous testing required for solar safety [3]. Consumers are advised to purchase eyewear from reputable sources to ensure the lenses meet international safety standards [3].
Viewing the eclipse without certified protection, including using sunglasses or smoked glass, is dangerous [1]. The risk of permanent vision loss makes the use of certified gear a necessity for anyone intending to watch the event directly.
“Knock-off glasses may not filter harmful solar radiation and can cause permanent eye damage.”
The surge in counterfeit safety gear often precedes major astronomical events as third-party sellers capitalize on sudden demand. Because solar retinopathy can occur without immediate pain, the reliance on certified ISO standards is the only reliable way to prevent mass public health incidents during high-visibility events like the Aug. 12 eclipse.



