Plastic spectacle is more modern than glass spectacle. It is lighter iGenics Review compare to glass. Because it is light, it won't easily slip off your nose. If you have a strong prescription, you should use plastic spectale. If you use glass lens, it may slip off the nose because of the heaviness of the lens. The plastic lens is resistant against all kinds of impact and is suitable for children. Children often jump around in the playground, causing the spectacles to be susceptible to crack.
Polycarbonate spectacle is a thin and lightweight spectacle that is resistant against impact. It is not resistance against scratches so it is necessary to add a scratch resistance coating. High index plastic glasses is the thinnest spectacle on the market. It is resistant against the ultra violet rate. It will refract away most of the light. The cons are that it is expensive and can be easily scratched. It will shatter when it is exposed to heavy impact.
High index eyeglasses has a thinner lens compare to standard lens. Despite that, the thinness of the lens did not make it lighter. Instead, it is heavier than the standard lens. It is suitable for adults that suffer from serious eyesight problem. People with weak prescription don't need high index lens. If you want a durable lens, you should purchase the high index plastic lens.
https://cbsecure.co.uk/igenics-review/
Polycarbonate spectacle is a thin and lightweight spectacle that is resistant against impact. It is not resistance against scratches so it is necessary to add a scratch resistance coating. High index plastic glasses is the thinnest spectacle on the market. It is resistant against the ultra violet rate. It will refract away most of the light. The cons are that it is expensive and can be easily scratched. It will shatter when it is exposed to heavy impact.
High index eyeglasses has a thinner lens compare to standard lens. Despite that, the thinness of the lens did not make it lighter. Instead, it is heavier than the standard lens. It is suitable for adults that suffer from serious eyesight problem. People with weak prescription don't need high index lens. If you want a durable lens, you should purchase the high index plastic lens.
https://cbsecure.co.uk/igenics-review/