Eclipse glasses: the difference between 80 and 6 cents
With every solar eclipse, demand for protective glasses soars, and so does the market for counterfeits. While certified glasses can cost around 80 cents, copies sell for as little as 6 cents. The temptation to save is understandable, but eye safety is no place for bargains.
The price of protection: margin and risk
The price gap between a certified pair and a counterfeit is enormous: from 80 to 6 cents. Optical chains such as Opticalia typically offer certified products, while the parallel market is flooded with glasses carrying no guarantee at all. The paradox is that whoever buys the cheapest option may end up paying for the mistake with their eyesight, and there is no going back.
Certification: not just any label will do
Not all dark glasses protect against solar radiation. Certification requires specific filters that block ultraviolet and infrared rays. Buyers guided by price alone take on a risk that is hard to measure: retinal damage can appear hours after exposure.
As the next eclipse puts purchasing decisions to the test, the only clear conclusion is that prevention costs less than treatment. The rest is a tug-of-war between price and trust, and history suggests the human eye is a poor judge of bargains.
Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication.
Read the full discussion (18 replies).
The main contract, worth €93.8 million including VAT with a 52-month deadline, was signed in September 2021. As of November 2026 the line still lacks full ERTMS.