Question 1

are polycarbonate lenses helpful?

Accepted Answer

Yes: These are high index eyeglass lense materials which allow a thinner eyeglass and for a given power of lens, are lighter than glass or ordinary plastics.  This is helpful to the nose which would otherwise have to support a heavier lense.

Question 2

is polycarbonate eyeglass lens expensive?

Accepted Answer

A little more: Polycarbonate lenses have a higher index of refraction and can be made a little thinner which lightens the eyeglasses and makes them more comfortable.  So they charge a little more for them.  I consider eyeglass costs way too high for the technology and manufacturing costs,  but it is an industry charging what the public will put up with.

Question 3

what are some alternative names for polycarbonate eyeglass lenses?

Accepted Answer

Safety glasses.: Polycarbonate (a type of plastic) in cetain thicknesses and specifications, is the type of material used in most industrially used safety glasses. It is reputed to be able to stop a speeding bullet (depends on the speed and type, of course)!

most high-index eyeglass lenses these days are made of alternate material with better optic quality than polycarb.

Question 4

glasses- polycarbonate lenses, what are these and what are the benefits?

Accepted Answer

Polycarbonate: Polycarbonate is a shatter-resistant plastic that is used in all children's glasses and in safety glasses.  It is also used for certain types of glasses frames because of its toughness.

Question 5

i was wondering what are the differences between polycarbonate, polycarbonate aspheric, and 1.67 high index lens?

Accepted Answer

Lens materials: Polycarbonate and 1.67 high index are different types of plastics used to make lenses for glasses.  Aspheric is a type of lens design.  Generally the higher index of the plastic, the thinner the lens can made.   Higher index materials may induce more distortion in the periphery of the vision.

Question 6

are polycarbonate lenses too thick for a prescription of -4.5?

Accepted Answer

No: And they will be lighter and easier on the nose.

Question 7

can one remove scratches from eyeglasses with polycarbonate lenses?

Accepted Answer

Not easily: Scratches in polycarbonate lenses involve the removal of plastic in the scratch.  To smooth it out you would need to grind this away which would alter the power of the lense and might induce some distortion.  Check with an optical shop to see if some correction is possible or replacement is needed.

Question 8

are polycarbonate lenses the only viable option for rimless eyeglasses?

Accepted Answer

No: There are other materials which can be used, trivex for example.

Question 9

should i be worried if i got acetone on my polycarbonate eyeglass lenses?

Accepted Answer

No: I wouldn't worry too much about that.  Do clean if off thoroughly before using.

Question 10

polycarbonate vs plastic lenses best for high myope?

Accepted Answer

Probably polycarb: Polycarbonate lenses are "high index" lenses .  They are often used in high myopes to allow for the glasses to be thinner and lighter.  They do have more chromatic aberration though.  Discuss the various pros and cons with your optician before deciding what it right for you.

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Trivex lenses vs polycarbonate

A member asked:

Are polycarbonate lenses helpful?

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Is polycarbonate eyeglass lens expensive?

A member asked:

What are some alternative names for polycarbonate eyeglass lenses?

A member asked:

Glasses- polycarbonate lenses, what are these and what are the benefits?

A member asked:

I was wondering what are the differences between polycarbonate, polycarbonate aspheric, and 1.67 high index lens?

A member asked:

Are polycarbonate lenses too thick for a prescription of -4.5?

A member asked:

Can one remove scratches from eyeglasses with polycarbonate lenses?

A member asked:

Are polycarbonate lenses the only viable option for rimless eyeglasses?

A member asked:

Should i be worried if i got acetone on my polycarbonate eyeglass lenses?

A member asked:

Polycarbonate vs plastic lenses best for high myope?

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