I was at my local Lenscrafters today, and the guy said that with a R.E. +2.50 and L.E. +3.00 I should not get rimless as they would look really bad. He explained that the middle of the lens would look extremely bulky.
I had my hopes set on rimless glasses and I am adamant to get them.
I've done a bit of research tonight and found that apparently high index lenses reduce the thickness of farsighted lenses as well. He offered me "featherweights", but from what I read those are regular polycarbonates, not high index lenses.
Armed with this knowledge should I go back and challenge him, or is my prescription too extreme to get rimless frames without them looking bad? I always under the impression that my prescription was mild compared to others...
If you can help me I'd really appreciate it. Thanks in advance.
2007-06-11 17:33:34 · 6 answers · asked by Anonymous in Health ➔ Optical
If high index lenses are too brittle, why does Essilor recommend their Thin&Light 1.60, 1.67 and 1.74 high-index lenses specifically for rimless frames?
Source (An Essilor website):
http://www.thinandlite.com/difference.html
I don't mean to be confrontational or anything, I'm just trying to sift through some of the conflicting information.
:)
2007-06-12 04:03:23 · update #1
"+" lenses are thinnest at the edge, so to get sufficient thickness at the edge to supprt rimless lens mounts, they have to be made deliberately thicker.
Most high index materials are appreciable more brittle than conventional plastic (CR39) lenses and even that is is not very satisfactory then lenses are thin. Polycarbonate lenses are distinctly tougher.
I would suggest looking for a a very thin metal-rimmed frame.
The overall effect will be much "lighter" in actual weight and in appearance.
With + lenses, the roundest shape of lens *that suits you* will give the lightest, thinnest, best-looking lenses. Avoid square shapes. This is a geometry thing, not a fashion one. The lenses "bulge" on the straight edges with rectangular shapes.
The smallest lenses *that suit you* will also give the thinnest lightest glasses.
2007-06-11 19:59:48 · answer #1 · answered by Pedestal 42 7 · 0⤊ 0⤋
You can't get high index in a rimless frame, they have to drill the frame and anything besides poly will crack. Poly lenses are thinner then plastic though, it shouldn't look weird with your Rx. Go for something on the smaller side so you don't see a huge difference in thickness from the middle to the outside. If you have been wearing your glasses for a while then I'm sure you know that + and - and shaped differently. Plus is thickest in the middle, and minus is thinnest. No offence to the person above my, that just don't know.
Go somewhere else, all these chain opticals have horrible service anyway.
2007-06-11 19:08:52 · answer #2 · answered by vampire_kitti 6 · 1⤊ 0⤋
It depends on if your prescription is stable or not. If it's stable you could go a couple years before getting new glasses. If your prescription is not stable you may need new glasses every year.
2016-04-01 02:59:21 · answer #3 · answered by ? 4 · 0⤊ 0⤋
1
2016-06-20 07:06:03 · answer #4 · answered by Bernard 3 · 0⤊ 0⤋
It should be ok. My RX is the oposite of yours I am -3.75 in both eyes and I wear 1/2 rimless. i have polycarb lensesin mine. They said if my RX was much worse I couldn't haave done it.
HTH
2007-06-11 18:24:04 · answer #5 · answered by scj1719 3 · 0⤊ 1⤋
you should be able to
2007-06-11 17:40:43 · answer #6 · answered by Fastily 4 · 0⤊ 0⤋