Question 1

can using polycarbonate lens while using desktop pc with lcd reduce eye fatigue?

Accepted Answer

No: Polycarbonate is simply a type of plastic.  Things that can help include tints, anti-reflective coatings, glare filters on your monitor and adjustments of lighting.  Some people also benefit by changing the color settings on their monitors and sitting further away from the screen.  Lubricating eye drops are beneficial and, of course, frequent breaks.

Question 2

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 3

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.

Question 4

please advise what is the difference between polycarbonate and polyaspheric lenses?

Accepted Answer

Not related: polycarbonate refers to the material that a lens is made from.  Sphericity relates to the way the lens is ground.

Question 5

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 6

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 7

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 8

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 9

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 10

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

Accepted Answer

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

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Doctor answers about:

High index vs polycarbonate lens

A member asked:

Can using polycarbonate lens while using desktop pc with lcd reduce eye fatigue?

A member asked:

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

A member asked:

Polycarbonate vs plastic lenses best for high myope?

A member asked:

Please advise what is the difference between polycarbonate and polyaspheric lenses?

A member asked:

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:

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

A member asked:

Are polycarbonate lenses helpful?

A member asked:

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

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