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Medical Forum / General / Vision / April 2004Low Cylinder Torics?
I am currently using standard daily disposable lenses (occasional use only), but have a fairly mild astigmatism, Cyl -0.50. To compensate, I was prescribed lenses -0.25 more minus sphere than my glasses prescription. This is fine for sports and driving etc, but reading a newspaper is slightly uncomfortable. Looking online, most toric lenses seem to start at -0.75 Cyl, with many starting at -1.00 Cyl, which is no good to me :) Does anyone know of a soft contact with a Cyl of -0.50 that I could discuss with my optician? Dont want to have to go there only to be told they dont even exist :) Thanks. > I am currently using standard daily disposable lenses (occasional use only), > but have a fairly mild astigmatism, Cyl -0.50. To compensate, I was [quoted text clipped - 7 lines] > > Thanks. A number of manufacturers will make a custom lens in any cyl power or axis you desire. It will be pricey and likely not worth the optical improvement. You might want to instead try an aspheric optical design---there are about a half dozen of them and most are far less costly (and easier to get a good fit) than torics. --LB  SignatureDr. Larry Bickford, O.D. Family Practice Eye Health & Vision Care The Eyecare Connection http://www.eyecarecontacts.com larrydoc at eye-care-contacts dot com (remove -) You might want to instead try an aspheric optical > design---there are about a half dozen of them and most are far less > costly (and easier to get a good fit) than torics. > > --LB Thanks for the suggestion, am I likely to notice a significant improvement over none aspheric lenses? > You might want to instead try an aspheric optical > > design---there are about a half dozen of them and most are far less [quoted text clipped - 4 lines] > Thanks for the suggestion, am I likely to notice a significant improvement > over none aspheric lenses? Perhaps significant, maybe a little and sometimes not at all. Depends in part upon pupil size and location of astigmatism axis. Worth the try. Hopefully you read Dr. Mike T. suggest of SunSoft Toric, a good choice for going for the dead-on exact optics experience. The lens requires careful fitting; not difficult, just careful. LB I have taken a quick look online, and all the UK suppliers who carried sunsoft torics only seem to go up to -0.75 . > Perhaps significant, maybe a little and sometimes not at all. Depends in > part upon pupil size and location of astigmatism axis. Worth the try. [quoted text clipped - 4 lines] > > LB Sunsoft Multiples come in -0.50 cylinder. They come as a set of four, for three-month replacement. I think Ocular Sciences owns Sunsoft now. -MT > I am currently using standard daily disposable lenses (occasional use only), > but have a fairly mild astigmatism, Cyl -0.50. To compensate, I was [quoted text clipped - 12 lines] > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.654 / Virus Database: 419 - Release Date: 06/04/2004 Cheers, I'll take a look :) > Sunsoft Multiples come in -0.50 cylinder. They come as a set of four, for > three-month replacement. I think Ocular Sciences owns Sunsoft now. [quoted text clipped - 17 lines] > > Checked by AVG anti-virus system (http://www.grisoft.com). > > Version: 6.0.654 / Virus Database: 419 - Release Date: 06/04/2004 > Cheers, I'll take a look :) > [quoted text clipped - 27 lines] > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.655 / Virus Database: 420 - Release Date: 08/04/2004 FWIW, I have mild astigmatism (0.50) in my left eye and was getting a ghost image in that eye with the Acuvue 2 lences I was using. I am now trying the Cooper Frequency 55 Ashpheric in both eyes and the ghosting is gone. From what I have learned so far, the Aspherics available are: Cooper Frequency 55 Aspheric Ciba Choice A.B. Ciba Focus Dailies 9 Ciba Focus Night&Day The Dailies and Night&Day are not advertized as aspheric, but Ciba has confirmed to me that they are. --Gary Thanks, very useful info :) > > Cheers, I'll take a look :) > > [quoted text clipped - 41 lines] > > --Gary > Sunsoft Multiples come in -0.50 cylinder. They come as a set of four, for > three-month replacement. I think Ocular Sciences owns Sunsoft now. > > -MT Yes, they do. I was working at Sunsoft when they got bought by Ocular Sciences, and got laid off when they phased out the Sunsoft IT department because it was redundant. |
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