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#6
04-04-2007, 05:38 AM
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 Re: Cataracts and astigmatism William Stacy wrote: - quote - > The Real Bev wrote:
Thanks, I guess I'll have to give the bastard one point for accuracy. She> > Can cataracts REALLY cause astigmatism? How? Since it went away after > > her cataract surgery (set by the quack for near vision, she was never > > consulted) maybe it's true... > > Astigmatism can come from the cornea or the crystalline lens, and the > two are additive optically, so that depending on the axis of the cyl. > induced by the lens (cataract or not), it can increase the total > astigmatism, decrease it, or just change its axis (orientation). The > cataract surgery always eliminates the lenticular astigmatism, but the > IOL can have some astigmatism, either on purpose (toric IOLs) or > accidentally (tilted or decentered IOL). Corneal cyl can be reduced or > eliminated by LRI at the time of the cataract surgery, but the limit > seems to be about 2.5 D.C. of corneal. In all cases, regular astigmatism > can be corrected with glasses, and irregular astigmatism can only be > corrected with RGP contacts or corneal surgery. had no astigmatism before the surgery. -- Cheers, Bev ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ "The language of victimization is infinitely extensible." -- Me |
 04-04-2007, 05:38 AM
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#5
04-04-2007, 05:35 AM
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| Re: Cataracts and astigmatism Ms.Brainy wrote: - quote - > On Apr 2, 9:36 pm, The Real Bev <bashley101+use...[at]gmail.com> wrote:
My mom's long-term 4-appointments/year ophthalmologist who didn't tell her> > My mom just told me that as her cataracts became worse, lights became > > elongated. Her quack told her that cataracts always caused that. Given > > that he apparently botched her surgery (glare, increasing to > > near-intolerable levels now even with sunglasses) and didn't notice the > > macular bubble, I doubt everything he ever said. > > > Can cataracts REALLY cause astigmatism? How? Since it went away after her > > cataract surgery (set by the quack for near vision, she was never consulted) > > maybe it's true... > > > -- > > Cheers, > > Bev > > _|-_|-_|-_|-_|-_|-_|-_|-_|-_|-_|-_|-_ > > Too many freaks, not enough circuses. > What, or who, is "the quack"?\ she could have a choice of near or far vision when she had her cataract operation, was perhaps one of the last ophthalmologists to still use stitches, left her eyes increasingly sensitive to light, and ultimately missed the macular bubble which destroyed the central vision in her GOOD eye. He took part of her life away. I want the bastard to rot in hell. -- Cheers, Bev ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ "The language of victimization is infinitely extensible." -- Me |
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#4
04-03-2007, 11:55 PM
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| Re: Cataracts and astigmatism On Apr 3, 12:36 am, The Real Bev <bashley101+use...[at]gmail.com> wrote: - quote - > Can cataracts REALLY cause astigmatism? How?
There are several types of cataract and not every person will have thesame experience. The most common cataract is one in which the center part of the lens gets denser. As it progresses, the patient usually has an increase in myopia and against the rule astigmatism. I have seen a few patients gain 6-8D of myopia and 4D of astigmatism before surgery. Dr Judy |
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#3
04-03-2007, 10:36 PM
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| Re: Cataracts and astigmatism The Real Bev wrote: - quote - > Can cataracts REALLY cause astigmatism? How? Since it went away after
two are additive optically, so that depending on the axis of the cyl.> her cataract surgery (set by the quack for near vision, she was never > consulted) maybe it's true... Astigmatism can come from the cornea or the crystalline lens, and the induced by the lens (cataract or not), it can increase the total astigmatism, decrease it, or just change its axis (orientation). The cataract surgery always eliminates the lenticular astigmatism, but the IOL can have some astigmatism, either on purpose (toric IOLs) or accidentally (tilted or decentered IOL). Corneal cyl can be reduced or eliminated by LRI at the time of the cataract surgery, but the limit seems to be about 2.5 D.C. of corneal. In all cases, regular astigmatism can be corrected with glasses, and irregular astigmatism can only be corrected with RGP contacts or corneal surgery. w.stacy, o.d. |
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#2
04-03-2007, 01:10 PM
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| Re: Cataracts and astigmatism On Apr 3, 12:36 am, The Real Bev <bashley101+use...[at]gmail.com> wrote: - quote - > My mom just told me that as her cataracts became worse, lights became
a wouldn't say that they "always" do that but they commonly do.> elongated. Her quack told her that cataracts always caused that. cataracts cause glare and can induce astigmatism. - quote - > Can cataracts REALLY cause astigmatism? How?
yes. they alter the refraction of light as it passes through the lensand thus induce "lenticular" astigmatism. - quote - > Since it went away after her
indeed!> cataract surgery (set by the quack for near vision, she was never consulted) > maybe it's true.. |
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#1
04-03-2007, 12:54 PM
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| Re: Cataracts and astigmatism On Mon, 02 Apr 2007 21:36:25 -0700, The Real Bev <bashley101+usenet[at]gmail.com> wrote: - quote - > Can cataracts REALLY cause astigmatism? How? Since it went away after her
existing astigmatism. It may be the way he placed the incision, or,> cataract surgery (set by the quack for near vision, she was never consulted) > maybe it's true... Look at it from the other end. Cataract surgery could remove an he could have done an LRI (Google is your friend) at the same time to remove the existing astigmatism. Been there, had that done, WRONG - Different quack |
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04-03-2007, 05:10 AM
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| Re: Cataracts and astigmatism On Apr 2, 9:36 pm, The Real Bev <bashley101+use...[at]gmail.com> wrote: - quote - > My mom just told me that as her cataracts became worse, lights became
What, or who, is "the quack"?> elongated. Her quack told her that cataracts always caused that. Given > that he apparently botched her surgery (glare, increasing to > near-intolerable levels now even with sunglasses) and didn't notice the > macular bubble, I doubt everything he ever said. > Can cataracts REALLY cause astigmatism? How? Since it went away after her > cataract surgery (set by the quack for near vision, she was never consulted) > maybe it's true... > -- > Cheers, > Bev > _|-_|-_|-_|-_|-_|-_|-_|-_|-_|-_|-_|-_ > Too many freaks, not enough circuses. |
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#-1
04-03-2007, 04:36 AM
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| Cataracts and astigmatism My mom just told me that as her cataracts became worse, lights became elongated. Her quack told her that cataracts always caused that. Given that he apparently botched her surgery (glare, increasing to near-intolerable levels now even with sunglasses) and didn't notice the macular bubble, I doubt everything he ever said. Can cataracts REALLY cause astigmatism? How? Since it went away after her cataract surgery (set by the quack for near vision, she was never consulted) maybe it's true... -- Cheers, Bev _|-_|-_|-_|-_|-_|-_|-_|-_|-_|-_|-_|-_ Too many freaks, not enough circuses. |
| Tags |
| astigmatism, cataracts |
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