Your next spectacles may be unbreakable, and skin-friendly too
NEW DELHI : Broken and deformed spectacles? Fancy frames itching your skin? Fret not - Stringent standards to manufacture eyewear are on way, aiming to enhance consumer safety and eye health. The new standards, on par with international guidelines, will include strict test methods to make unglazed spectacle frames, two people aware of the matter said. Frames must withstand deformation and lens dislodgement under specified test conditions, ensuring mechanical stability in daily use.
They must be resistant to perspiration, show no spotting, colour change, corrosion, or surface degradation after exposure. The distance between the tips of the sides must remain within specified limits even when tested with fitted lenses, the people cited above said on condition of anonymity. Manufacturers must also minimize the risk of harmful substances leaking from the frame.
Frames must retain dimensions even at elevated temperatures. They should also be designed or treated in a way that prevents them from catching fire easily and, if they do ignite, the fire should not sustain itself once the initial flame or source of ignition is taken away. “One of the critical aspects of the new standards is the regulation of nickel release from metal parts of the frame.
Parts that come into direct and prolonged contact with the skin must not release more than 0.5 micrograms per square centimetre per week of nickel," one of the two people cited above said. “It is crucial in preventing allergic reactions and ensuring the long-term comfort of the wearer as excessive nickel release can cause allergic reactions and skin irritation. By limiting nickel release, the standards aim to protect consumers from potential health issues and ensure safer, more
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