Nicholas Selby Od (San Diego, CA 92126)

• How to convert contact prescription to eyeglass prescription?

  Yes,of course they can convert.There should be a formula to calculate it.Google it or call your doctor to ask.

• Do sports sunglasses block your vision?

  If sports sunglasses can block your vision ,they are useless for you . Generally speaking ,a pair of good quality sports glasses won't block your vision .But if they are too small for you , your peripheral view may be affected to some extent . when you are looking left, right, up, or down, you don't usually only move your eyes,your head moves too so the glasses won't block your vision.

• Advantages and disadvantages of rimless and semi-rimless glasses?

  Pros :they are much more lightweight and greatly ease the pressure on the bridge of nose and eyes.There are no frames that will distract your eyes to see objects and have a wider view. Cons: Less sturdy, easy to get broken when falling down.Their price is higher than other glasses frames .The lenses can gradually disintegrate on the side where the screws are situated and finally the lenses can drop.

• Do polarized sunglasses protect your eyes better?

  Polarized sunglasses are quoted with a special material, which let useful detailed optical information through while blocking out glare that might hurt your eyes. But this polarization has nothing to do with UV protection. So they don't "protect" your eyes better.

• Are thick lenses available for semi rimless glasses or rimless glasses?

  Sure you can. But you need to pay much more money to it cuz you need to choose the high index lenses to make in semi rimless or rimless glasses.

• Is it OK to have semi-rimless glasses if my vision is -8.00 ?

  Lenses in 1.74 index of refraction will be ok for -8.00.Actually 1.61 or 1.67 is enough .But it can still be thicker at the edge and there is no way to hide them. Polished edges is a good way to hide them.

• Go to optical store and ask.I guess it is available.

  Lenses of semi rimless glasses may look thinker than those of full framed glasses due to semi rimless design,and they do make people more stylish on them. They are much more popular among people who are sick of full framed glasses.You can try to wear it for some time,maybe you will love them later.

• What is the piece that sits on the nose called and where to buy?

  It is nose-pad. Go to your nearby optical store to have a look.

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