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Medical Forum / General / Vision / April 2007Good Lens Choice for my Rx?
Hi All, Let me start off by mentioning I am an engineer by trade, but have almost zero experience with optics. I am getting ready to get a new set of glasses, and until recently was not picky about lenses. I currently wear a set of lens crafter's "featherwates completes" with AR coating and scratch coating, which I believe are plane-jane polycarb. It is time to move on and get something better (and from someone else), and up the ABBE value. My question is what brand/type/ material lens would be a good choice for me? I've read many good things about "sola spectralight"... My 2 year old perscription is listed below (havnt gotten my new eye exam yet). I am picky about lens weight, thickness, and quality. It has to have an AR coating, and be somewhat resistant to scratching. In terms of cost lets say under $250-300 for the lenses. Other factors: I wear my glasses all day, drive with them, and use a computer 8-10 hours a day. I also watch a lot of HD material in my home theater. Reccomendations? OD: -2.25 (sphere), -2.00 (cyl), 114 (axis) OS: -1.50 (sphere), -2.00 (cyl), 077 (axis) Thanks in advance, --Eric Almost forgot: One of my biggest complaints with my current lenses, is that they are VERY hard to clean (the ar coating seems to make it streak). I have even tried lens paper and eyeglass cleaner... Thanks, I resolved my lens cleaning issues when I got my first pair of them new-fangled plastic lens 3 years ago ... go to your local harbor freight and get their low-end ultrasonic cleaner (often $20 on sale, $40 normal), put in 1/4 teaspoon of dishwashing detergent and a cup or so of really warm water, dip the glasses for 10-30 seconds (watch that dirt come out of the crevices in the mount, if yoou've not done this in a few months), rinse in real warm tap water, then shake to dry. Our water here has low disolved stuff and I never wipe them at all. I used this technique years back in a high disolved solids environment, and would touch remaining drops with "kleenex" style tissues or toilet paper. >Almost forgot: One of my biggest complaints with my current lenses, is >that they are VERY hard to clean (the ar coating seems to make it >streak). I have even tried lens paper and eyeglass cleaner... > >Thanks, >I resolved my lens cleaning issues when I got my first pair of them > new-fangled plastic lens 3 years ago ... go to your local harbor [quoted text clipped - 7 lines] > and would touch remaining drops with "kleenex" style tissues or toilet > paper. You should never use automatic dishwasher detergent on an AR coated lens. If you mean the kind of detergent for washing manually, that "may" be OK. >>I resolved my lens cleaning issues when I got my first pair of them >> new-fangled plastic lens 3 years ago ... go to your local harbor [quoted text clipped - 10 lines] >You should never use automatic dishwasher detergent on an AR coated lens. If >you mean the kind of detergent for washing manually, that "may" be OK. ABSOLUTELY! I'm using Dawn or similar. That automatic type is very agressive and abrasive. >>>I resolved my lens cleaning issues when I got my first pair of them >>> new-fangled plastic lens 3 years ago ... go to your local harbor [quoted text clipped - 13 lines] >ABSOLUTELY! I'm using Dawn or similar. That automatic type is very >agressive and abrasive. I too use Dawn (way diluted, of course) on my glasses (glass), and wipe with Bounty paper-towells (seem soft to me). Question: how much cleaner will this ultrasonic thing get them? And why and how? THANKS! David > Hi All, > Let me start off by mentioning I am an engineer by trade, but have [quoted text clipped - 23 lines] > Thanks in advance, > --Eric One recommendation is Hoya SV lenses with Phoenix material (trivex) that is 1.53 index, and the Hoya Super HiVision AR coating. Abbe is about 43. Trvex works great in drill mount frames in case you were considering that (high tensile strength). They come in two designs: - Hi-lux spherical: features a single central radius on the front surface and, depending on the prescription, different radii on the back surface. Very easy to fit accurately. - Nulux aspheric: the radius leading from the centre of the front surface to its edge becomes longer, and the radii form a purer focal point. This results in less deformation in the periphery of the lens, and a slightly flatter and thinner lens. Proper fitting (center of lens at the correct pupil position) is a bit trickier than spherical lenses. With your Rx the spherical would probably be fine unless you are very concerned about thickness (a 1.53 or 1.54 lens will be a little thicker than polycarb which is 1.59 index). You can forget about the big chains having these. Call around to upscale optical shops or an OD office with a dispensary. The Sola Spectralite (1.54) with Sola UTMC AR coat may also be a good option. Some large chains may carry this lens. I know that Walmart used to carry some Sola, but not sure if they still do. For good vision, stay out of Lenscrafters. > You can forget about the big chains having these. Call around to upscale > optical shops or an OD office with a dispensary. Thanks for the info. Yeah - that's kinda what I thought... I already have an appointment, but I made it prior to asking them what lenses I can actually get my hands on. Needless to say, I will be calling them about that tomorrow. Using the sola and zeiss service locators, I have found a few places in town that *should* offer at least some decent products. So its a start. >For good vision, stay out of Lenscrafters. Learned that the hard way! >One recommendation is Hoya SV lenses with Phoenix material (trivex) that is >1.53 index, and the Hoya Super HiVision AR coating. Abbe is about 43. Trvex >works great in drill mount frames in case you were considering that (high >tensile strength). Ditto. Hoya's AR coating (Super HiVision) is one of the best. Round 50mm -4.00DS aspheric lens, no decentration, center thickness 1.5mm. (ET= Edge thickness) Trivex Weight 5.8gm ET 3.8mm 1.60 Weight 6.5gm ET 3.6mm 1.70 Weight 6.6gm ET 3.3mm Single vision Spectralite is being phased out. All of the above are good lenses, but for a variety of reasons I would prefer to use Hoya's Trivex or 1.70- Trivex for the lighter weight, or 1.70 for the thinner edge. Hope this helps, Robert Martellaro ~~~~~~~~~~~~~~~~~~ Optician/Owner Roberts Optical Wauwatosa Wi. ~~~~~~~~~~~~~~~~~~ "Science is a way of trying not to fool yourself." - Richard Feynman On Apr 4, 9:55 pm, ehuel...@nmsu.edu wrote: > Hi All, > Let me start off by mentioning I am an engineer by trade, but have [quoted text clipped - 23 lines] > Thanks in advance, > --Eric a 1.6 index (mr8 material) with a super hi vision or alize type AR coat. Good abbe (40) and thin. >It is time to move on and get something better (and from >someone else), and up the ABBE value. My question is what brand/type/ >material lens would be a good choice for me? I've read many good >things about "sola spectralight"... I tried Spectralite in a bifocal and did not like it. Actually the material is probably fine. They gave me an aspheric lens. The aspheric surface is intended to make the lens thinner at the expense of good vision. The view looks blurred around the edge, much as with polycarbonate lenses but for a different reason. I went back to CR39. |
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