Whats the difference in lens thickness for this prescription?!

You really can't tell how thick your lenses will be based on that info. Your pupillary measurement in relation to the frame size will dictate how much decentration is necessary (moving the optical center to the right spot). So depending on how far apart your eyes are, or if they are narrow set, the edge thickness will vary. Just choose the smallest frame that suits your face properly. A good optician can advise you best for cosmetics.

Go with the polycarbonate. It will give you decent optics, cost a bit less than Hi index and give you better impact resistance, especially if you are active in recreation, sports or type of work.

A full rimmed frame will conceal the edge thickness better as compared to a rimless or semi- rimless frame. Plastic frames would be your best option so it wouldn't show the edges and the discrepency in the lens thickness as your right lens would be thicker than the left.

Your rx isnt bad enough to be put in a hi-index lens. I would recommend polycarbonate lenses. Then again, are the frames full frame, half frame or drill mounts? If your wearing a frame where the lenses shows easily, then you might want to go with a hi-index. But poly will work for just as good for you right now...also remember to put an Anti-reflective coating on the lenses to reduce the glare at night!

The frame choice sounds good, as long as it looks good on you. Hi-index lenses would be overkill, but wouldn't hurt, per se.

I agree that polycarbonate lenses would be best for your prescription. A full frame is advisable if you're concerned with lens thickness too.

k