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Lens Materials

Glass

  • Glass is the traditional material for providing stable and precise optics.
  • Glass in their natural state have little resistance to impact but has the advantage of being more difficult to scratch.
  • Thinner glass lenses can be made for very high minus power (with refractive index of 1.8 and 1.9).
  • Glass lenses are nowadays becoming outdated since they tend to be heavier than plastic lens and they are unsafe to wear because of its possibility of breakage.
Plastic

  • Lenses are made up of special resin called Columbia Resin.
  • These are safe lenses to use for all age groups.
  • Lenses are less likely to break.
  • Lenses are 50 % lighter and comfortable than glass.
  • Can be tinted to required colour.
  • Can be coated to resist from scratches and to increase the light transmission.
Polycarbonate

  • These lenses are made of special polymer.
  • This material is also called as 'bullet proof' material and is 10 times tougher than ordinary plastic lens.
  • Thin and light weight - High refractive index (1.586)
  • 100% in-built UV protection.
  • Hence, recommended material for children and sports.
  • Best lenses for rimless spectacles.

Buy Sunglasses, Eyeglasses, Contact Lenses-Shop Eyewear Online

www.gkboptical.com is India's ultimate online eyewear shopping destination, where you can buy Sunglasses, Eyeglasses, Contact Lenses. We have a large collection of brands from across the world. We are an authorized retailer for these products, so you are guaranteed authenticity of products.

Our range of products cater to all needs, from Rs 300 up to over Rs 35,000. We also provide free shipping across India, warranty, & a money back policy. We have a team of optical specialists that can help you over the phone, email, chat, or at any of our more than 60 stores across India. With over 50 years of expertise, we have more than 1 million customers across the world!

For queries regarding product, online order and online payment you can reach our customer service team at 1800-419-1990 or at cs@gkboptical.com (Monday-Saturay 10 a.m. to 6.30 p.m.).

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