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They're made from specially formulated glass. Formed into a large, thick 'sheet' during manufacture, the lenses are cut from the sheet by diamond-coated cutters. The surface of the lens is then refined by a lathe.

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Q: How lenses are made?
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Related questions

What are hard contact lenses made of?

Hard contact lenses are made of a plastic polymer called polymethyl methacrylate.


What are aurolab lenses made of?

Aurolab lenses are made of high-quality acrylic material. These IOLs are used in cataract surgeries.


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The raw material of lenses is plastic polymer in most cases. There are some lenses which are made from glass materials as well.


When you go to the eye doctor are the lenses glass or actual lenses?

The may be made of glass or plastic, but in either case they ARE always actual lenses.


what is gas-permeable?

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What are contacts made out of?

These are the types of contact lenses and the material(s) they're made out of: 1. rigid lenses - polymethyl methacrylate (now improved) 2. soft lenses - silicon hydrogel (which is the material that is being used in manufacture of contact lenses today) 3. hybrid - mixture of materials of both rigid and soft lenses


When was the first contact lenses made?

in 1844..


What was the first invention made with lenses?

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What are eyeglass lenses made of?

According to Wikipedia, today's lenses are typically made from plastic, such as polycarbonate. Plastic is used in order to lessen the chance of breakage.


Soft contact lenses are made from?

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What benefits do aspheric lenses offer?

Aspheric lenses are very good for individuals with a strong eyeglass prescription because they can be made thinner and lighter than conventional lenses.


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