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Polycarbonate lenses are made from a similar material to that of bulletproof glass, these lenses are 10 times more impact resistant than standard plastic lenses however this material is relatively soft, subsequently polycarbonate lenses need a scratch-resistant coating to prevent surface scratches.
We also include a scratch resistant coating and UV400 treatment FREE OF CHARGE. Polycarbonate is a thermoplastic material which is produced from small pellets, these pellets are heated to melting point, from here this liquid polycarbonate is then injected into lens molds by a process known as injection molding. Most other plastic lenses are made from a cast molding process, where a liquid plastic material is baked for long periods in lens forms, solidifying the liquid plastic to create a lens. |
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when i went to my daughter's optometrist, and have my daughter's eye examination, the optometrist required me to let my daughter use polycarbonate lenses? and i forgot to ask what was that mean? it that means that my child have a problems in her vision?
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Mostly eye doctor used to recommend to their patient to use polycarbonate lenses especially for children. Because of its soft, subsequently polycarbonate lenses need a scratch-resistant coating to prevent surface scratches.
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