Re: Atropine vs Patching for treatment of amblyopiaOn May 6, 11:17 pm, "David Robins, MD" <trasha...@runbox,com > wrote:
> On 5/5/08 10:04 PM, in article
> c4c2bc1c-72bd-47a8-922c-044a18bfa...@w4g2000prd.googlegroups,com , "douglas"
>
>
>
>
>
> <Protoman2...@gmail,com > wrote:
> > On May 5, 9:32 pm, "David Robins, MD" <trasha...@runbox,com > wrote:
> >> On 5/5/08 5:42 PM, in article
> >> be7a4524-2b14-4f0b-9fa4-d3ba98faa...@u12g2000prd.googlegroups,com , "douglas"
>
> >> <Protoman2...@gmail,com > wrote:
> >>> On May 3, 10:19 pm, "David Robins, MD" <trasha...@runbox,com > wrote:
> >>>> On 5/3/08 3:00 PM, in article 481cdf4b$0$828$58c7a...@news.kabelfoon.nl,
>
> >>>> "Jan" <nos...@nospam.nl> wrote:
> >>>>> douglas schreef:
> >>>>>> On May 3, 2:34 pm, Jan <nos...@nospam.nl> wrote:
> >>>>>>> douglas schreef:
>
> >>>>>>>> I was reading a clinical trial "A randomized trial of atropine vs.
> >>>>>>>> patching for treatment of moderate amblyopia in children", in the
> >>>>>>>> March 2002 issue of Archives of Ophthalmology. My optometrist, Dr
> >>>>>>>> Ryan, says that I need to be patched, but the study says that atropine
> >>>>>>>> is equally effective. My prescription in my amblyopic eye is -11.25
> >>>>>>>> -2.50x178, SER of -12.50. My left eye is around a -3.00 to a -3.75.
> >>>>>>>> What acuity does that translate into? Should I take the results of the
> >>>>>>>> study over Dr Ryan, or what? I don't think Dr Ryan read the study.
> >>>>>>>> Thanks!
> >>>>>>>> Otis Brown, I hereby command you not to proffer your counsel. Amen.
> >>>>>>> Douglas, you are fake.
> >>>>>>> A 16 year old getting the advice to patch one eye?
>
> >>>>>>> Jan (normally Dutch spoken)
>
> >>>>>>> BTW, this newsgroup is not moderated, so you and other fake people can't
> >>>>>>> be avoided.
>
> >>>>>> Yes he did say that. He said "it's still possible to get some
> >>>>>> improvement".
>
> >>>>> Sure, temporarily at the moments you are patched it might be possible.
>
> >>>>> Also, this study "Randomized Trial of Treatment of
> >>>>>> Amblyopia in Children Aged 7 to 17 Years", in the April 2005 issue,
> >>>>>> says it's possible. So there.
>
> >>>>>> And isn't amblyopia caused by the ciliary muscles in the amblyopic eye
> >>>>>> not fully developing?
>
> >>>>> Douglas you still are a fake.
> >>>>> Try to google on amblyopia or better read a good book about the subject,
> >>>>> (and no, I'm not given advises which book you should read)
>
> >>>>> So, shouldn't simply disabling the ciliary
> >>>>>> muscles, instead of occluding, the good eye reach the same effect,
> >>>>>> more efficiently, w/ a better quality of life?
>
> >>>>> First try to became familiar with the real knowledge needed before you
> >>>>> put one and two together.
>
> >>>>> Jan (normally Dutch spoken)
>
> >>>> Actually, they ARE studying the efficacy of patching older ages than have
> >>>> traditionally been treated. Textbooks used to say to reason to patch after
> >>>> age 8. However, the brain is still developing in some past that age, and we
> >>>> (I, at least) routinely patch kids 9-11 years old and get some effect.
> >>>> Obviously, it doesn't work well if they are very amblyopic, and won't work
> >>>> at all if they cannot co the treatment hours necessary. The older kids take
> >>>> much more patching than the younger kids. Thus, this interferes with
> >>>> school,
> >>>> homework, and other activities, and they are often failures due to being
> >>>> unable to patch enough.
>
> >>>> I will also say that the results of some of the PEDIG (Pediatric Eye
> >>>> Diseases Group) studies that are being quoted have to be taken with a grain
> >>>> of salt. I know the people publishing all this, Dr. Mike Repka from Wilmer
> >>>> at Hopkins, where I did my training. For example, they say 2 hrs is as
> >>>> effective as 6 hrs of patch, and 6 hrs is as effective as full-time, but we
> >>>> all know that is not true for everyone, and has to be tailored to the
> >>>> individual.
>
> >>>> Regarding atropine: amblyopia is not due to the ciliary muscle, etc as
> >>>> mentioned. It is due to the brain have received a blurry image, or a
> >>>> conflicting image (as in strabismus), and not learning to see well.
> >>>> Atropine
> >>>> works by blurring the image for near, at reading distance, and really only
> >>>> works if the blurred image is blurry enough to switch fixation preference
> >>>> to
> >>>> the amblyopic eye so it is being used. Therefore, it works only in low to
> >>>> moderate amblyopes, since it can't blur the image enough in bad amblyopes.
> >>>> You can help it along by using glasses that are sufficiently "wrong" so as
> >>>> the blur the eye at near in addition to the atropine. Problem is, one is
> >>>> not
> >>>> reading all day, so it only is treating part of the time. In addition, some
> >>>> feel that light getting in the better eye still competes with the amblyopic
> >>>> eye, and slows treatment. Also, atropine is basically all or none; you
> >>>> can't
> >>>> really modulate it the way you can with adjusting number of hours of
> >>>> patching.
>
> >>>> I use atropine when I can't use a patch due to poor cooperation, or when I
> >>>> am patching all out-of-school hours, and need more, but don't want to patch
> >>>> in school. I also sometimes use it as maintenance after stopping patching.
>
> >>>> Regarding the amblyopia treatment in this highly anisometropic myope, he
> >>>> has
> >>>> not told us what his visual acuity is. He still thinks looking at the
> >>>> eyeglass power tells you what vision this corresponds to. This kind of
> >>>> amblyopia is probably severe, and rather resistant to treatment anyway, but
> >>>> who knows, there still might be some improvement with patching. I think
> >>>> atropine would be a waste of time if there is any significant amblyopia.
>
> >>>> Now, I will also tell you that I have seen some prominent specialists use
> >>>> full-time patching in full-grown adults (age 40, etc), and get some
> >>>> improvement. We all joked because he was in Iowa, and we said, sure, you
> >>>> can
> >>>> tell only an Iowa farmer to patch all day for a year ... (this was Dr.
> >>>> William Scott, in Iowa City, very respected, now retired).
>
> >>>> David Robins, MD
> >>>> Board certified Ophthalmologist
> >>>> Pediatric ophthalmology and adult strabismus subspecialty- Hide quoted text
> >>>> -
>
> >>>> - Show quoted text -
>
> >>> Great! I was getting tired of Jan calling me a liar. Could severe,
> >>> untreated-for-decades amblyopia cause optic nerve degeneration?
>
> >> No.
> >> Amblyopia is a brain problem, NOT an optic nerve problem.
> >> Amblyopia cannot influence the health of the optic nerve.- Hide quoted text -
>
> >> - Show quoted text -
>
> > But don't nerves that aren't stimulated atrophy?
>
> The optic nerves are stimulated just fine. It is the vision areas of the
> visual cortex in the brain that atrophy (the dominance columns that were
> described by Hubel and Weisel)- Hide quoted text -
>
> - Show quoted text -
Oh, thanks for correcting me.