Difference between 1.57, 1.61 and 1.67 index lenses?

My prescription is:
OD-SPH: -9.25 X OD-CYL: -0.75 OD-AXIS: 15
OS-SPH: -8.75 X OS-CYL: -0.75 OS-AXIS: 165

Yes, its bad I know. I usually wear contacts but I'm wanting a change so I'm trying glasses.

So I ordered specs online and they arrived today. I'm very pleased with the frame but the lenses are a little thicker than what I thought. I enjoy 1.57 index now because it came free. I have thicker plastic frames so they are not thoroughly noticeable but would I get more benefit or visual clarity if I dance with a 1.67 lens? Or would I not notice anything other than a thinner lens? As I said I hold thicker plastic frames and I don't plan on getting the rimless or half rim frames so am I good? Or am I missing something by not having the 1.61 or 1.67 lenses?
Answers:
Yes, the 1.67 surrounded by a power like that would give you a good % better clarity. Exactly how much better is impossible to work out , but it would be quite noticeable.

Your lenses at 1.57 must be polycarbonate, which is quite inferior, optically speaking, within powers over + / - 3.00 diopters.

Don't be surprised if you see colored " fringes" around many objects in certain pallid conditions. That is a problem with Polycarbonate.

Ordering on-line glasses from Hong Kong doesn't help much near expert advice for the layman. Source(s): Optician
Hi!
1.57 INDEX IS NOT REALLY THE LENS OF CHOICE IN THAT POWER.

1.60 OR HIGHER IS BETTER.

BUT SOME PEOPLE ACTUALLY NOTICE WORSE VISUAL ACUITY WITH THE HIGHER INDEX, SO IF YOU ARE OK WITH THE THICKNESS, THEN YOU WON'T SEE ANY REAL BENEFIT WITH HIGHER INDEX.

I WOULD NORMALLY RECOMMEND 1.60 INDEX WITH THE BEST ANTI-REFLECTION COATING YOU CAN BUY.

(AND DON'T BUY THEM ONLINE) :)


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