Comments for Webvision http://webvision.med.utah.edu The Organization of the Retina and Visual System Wed, 22 Feb 2012 21:44:27 +0000 hourly 1 http://wordpress.org/?v=3.2.1 Comment on Gross Anatomy of the Eye by Fría y fascinante: una alineación de planetas a la puesta del Sol « REDES DEL MISTERIO – CIENCIA http://webvision.med.utah.edu/book/part-i-foundations/gross-anatomy-of-the-ey/#comment-53238 Fría y fascinante: una alineación de planetas a la puesta del Sol « REDES DEL MISTERIO – CIENCIA Wed, 22 Feb 2012 21:44:27 +0000 http://155.100.105.205/?page_id=209#comment-53238 [...] La fóvea es responsable de nuestra visión central más fina. [Más información (en idioma inglés)] [...] [...] La fóvea es responsable de nuestra visión central más fina. [Más información (en idioma inglés)] [...]

]]> Comment on Light and Dark Adaptation by Vitamin A improves retinal sensitivity in premature infants - The Doctor's Channel http://webvision.med.utah.edu/book/part-viii-gabac-receptors/light-and-dark-adaptation/#comment-52744 Vitamin A improves retinal sensitivity in premature infants - The Doctor's Channel Mon, 20 Feb 2012 23:28:11 +0000 http://155.100.105.205/?page_id=163#comment-52744 [...] in the outer retina. Compared to term infants, preterm infants at term-corrected age have reduced dark-adapted retinal sensitivity, which could be due to reduced availability of [...] [...] in the outer retina. Compared to term infants, preterm infants at term-corrected age have reduced dark-adapted retinal sensitivity, which could be due to reduced availability of [...]

]]> Comment on 14th Vision Research Conference Retina Ciliopathies: From Genes to Mechanisms and Treatment by Gene Therapy Rescues Photoreceptor Blindness in Dogs and Paves The Way for Treating Human X-linked Retinitis Pigmentosa – Webvision http://webvision.med.utah.edu/2011/10/14th-vision-research-conference-retina-ciliopathies-from-genes-to-mechanisms-and-treatment/#comment-52337 Gene Therapy Rescues Photoreceptor Blindness in Dogs and Paves The Way for Treating Human X-linked Retinitis Pigmentosa – Webvision Sun, 19 Feb 2012 19:50:47 +0000 http://webvision.med.utah.edu/?p=1961#comment-52337 [...] I’ll look forward to hearing more about this work at the upcoming pre-ARVO, ciliopathy meeting. [...] [...] I’ll look forward to hearing more about this work at the upcoming pre-ARVO, ciliopathy meeting. [...]

]]> Comment on Photoreceptors by Gene Therapy Rescues Photoreceptor Blindness in Dogs and Paves The Way for Treating Human X-linked Retinitis Pigmentosa – Webvision http://webvision.med.utah.edu/book/part-ii-anatomy-and-physiology-of-the-retina/photoreceptors/#comment-52295 Gene Therapy Rescues Photoreceptor Blindness in Dogs and Paves The Way for Treating Human X-linked Retinitis Pigmentosa – Webvision Sun, 19 Feb 2012 18:38:54 +0000 http://155.100.105.205/?page_id=94#comment-52295 [...] where the defect was in the retinal pigment epithelium, this study presents data from a defect in photoreceptors, specifically mutations in the RPGR gene that encodes a photoreceptor ciliary [...] [...] where the defect was in the retinal pigment epithelium, this study presents data from a defect in photoreceptors, specifically mutations in the RPGR gene that encodes a photoreceptor ciliary [...]

]]> Comment on Outer Plexiform Layer by Retinal Half Mosaic – Webvision http://webvision.med.utah.edu/book/part-ii-anatomy-and-physiology-of-the-retina/oute-plexiform/#comment-52293 Retinal Half Mosaic – Webvision Sun, 19 Feb 2012 18:36:26 +0000 http://155.100.105.205/?page_id=96#comment-52293 [...] group at UC Santa Barbara Neuroscience Research Institute that shows a small mosaic of the outer plexiform layer in mouse retina stained with anti-Calbindin D (green; horizontal cells) PNA (red; cone terminals) [...] [...] group at UC Santa Barbara Neuroscience Research Institute that shows a small mosaic of the outer plexiform layer in mouse retina stained with anti-Calbindin D (green; horizontal cells) PNA (red; cone terminals) [...]

]]> Comment on Part IX: Brain Visual Areas by Masmoudi http://webvision.med.utah.edu/book/part-ix-psychophysics-of-vision/#comment-51756 Masmoudi Fri, 17 Feb 2012 11:25:10 +0000 http://155.100.105.205/#comment-51756 Great JOB Great JOB

]]> Comment on Simple Anatomy of the Retina by Bryan William Jones http://webvision.med.utah.edu/book/part-i-foundations/simple-anatomy-of-the-retina/#comment-50817 Bryan William Jones Tue, 14 Feb 2012 21:54:28 +0000 http://155.100.105.205/#comment-50817 Dear Laura, We have a standard policy here on Webvision: information on Webvision should be considered as research appropriate and not be construed as clinically relevant, or medical advice. Information provided here is informational only. Medically related questions should be addressed with your health care providers. I am sorry that we cannot address any individual medical health care related question, but it is simply too difficult and inappropriate for us to address patient care concerns over the Internet. If you do not feel that your health care provider is delivering appropriate care, then I'd suggest shopping around for another ophthalmologist who specializes in retina. Also, make sure that you get the information from your health care provider that you are entitled to. Does not matter if he is busy. If he is not meeting your needs, then you should look for someone else. Dear Laura,

We have a standard policy here on Webvision: information on Webvision should be considered as research appropriate and not be construed as clinically relevant, or medical advice. Information provided here is informational only. Medically related questions should be addressed with your health care providers.

I am sorry that we cannot address any individual medical health care related question, but it is simply too difficult and inappropriate for us to address patient care concerns over the Internet. If you do not feel that your health care provider is delivering appropriate care, then I’d suggest shopping around for another ophthalmologist who specializes in retina. Also, make sure that you get the information from your health care provider that you are entitled to. Does not matter if he is busy. If he is not meeting your needs, then you should look for someone else.

]]> Comment on Simple Anatomy of the Retina by Laura http://webvision.med.utah.edu/book/part-i-foundations/simple-anatomy-of-the-retina/#comment-50810 Laura Tue, 14 Feb 2012 21:09:49 +0000 http://155.100.105.205/#comment-50810 I suffer from POHS and I have lots of scarring. I have some distorted/grey areas on my Amsler Grid testing. These spots are very close, but not directly in my central vision. My retinal specialist doesn't off much information - he's extremely busy. When part of my vision is distorted (similar to macular degeneration), is this usually from choroidal neovascularization or just damage to the retina? I suffer from POHS and I have lots of scarring. I have some distorted/grey areas on my Amsler Grid testing. These spots are very close, but not directly in my central vision. My retinal specialist doesn’t off much information – he’s extremely busy. When part of my vision is distorted (similar to macular degeneration), is this usually from choroidal neovascularization or just damage to the retina?

]]> Comment on Psychophysics of Vision by Chairs Missing » Blog Archive » The Blueprint http://webvision.med.utah.edu/book/part-viii-gabac-receptors/psychophysics-of-vision/#comment-50250 Chairs Missing » Blog Archive » The Blueprint Mon, 13 Feb 2012 15:52:03 +0000 http://155.100.105.205/?page_id=153#comment-50250 [...] to NPR on a regular basis.)  Therefore I think there’ll be some discussion of interesting things I’ve learned here at NECO, and some clinical “hey what a fascinating patient” stuff (all [...] [...] to NPR on a regular basis.)  Therefore I think there’ll be some discussion of interesting things I’ve learned here at NECO, and some clinical “hey what a fascinating patient” stuff (all [...]

]]> Comment on Photoreceptors by Bryan William Jones http://webvision.med.utah.edu/book/part-ii-anatomy-and-physiology-of-the-retina/photoreceptors/#comment-48711 Bryan William Jones Thu, 09 Feb 2012 13:01:01 +0000 http://155.100.105.205/?page_id=94#comment-48711 A number of studies have documented two ribbons in rod photoreceptors of primate and cat retinas (ex. Migdale, et.al 2003 in JCN) http://www.ncbi.nlm.nih.gov/pubmed/12454999 The other thing to consider is that it may appear to be more than two ribbons in some preparations due to the 3D nature of the structures, though there are two. A number of studies have documented two ribbons in rod photoreceptors of primate and cat retinas (ex. Migdale, et.al 2003 in JCN) http://www.ncbi.nlm.nih.gov/pubmed/12454999 The other thing to consider is that it may appear to be more than two ribbons in some preparations due to the 3D nature of the structures, though there are two.

]]> Comment on Photoreceptors by Anna http://webvision.med.utah.edu/book/part-ii-anatomy-and-physiology-of-the-retina/photoreceptors/#comment-48695 Anna Thu, 09 Feb 2012 11:21:53 +0000 http://155.100.105.205/?page_id=94#comment-48695 Don´t rod spherules have only one synaptic ribbon? Don´t rod spherules have only one synaptic ribbon?

]]> Comment on The retinal pigment epithelium by Gene Therapy Rescues Photoreceptor Blindness in Dogs and Paves The Way for Treating Human X-linked Retinitis Pigmentosa – Webvision http://webvision.med.utah.edu/book/part-ii-anatomy-and-physiology-of-the-retina/the-retinal-pigment-epithelium/#comment-48294 Gene Therapy Rescues Photoreceptor Blindness in Dogs and Paves The Way for Treating Human X-linked Retinitis Pigmentosa – Webvision Wed, 08 Feb 2012 13:01:13 +0000 http://155.100.105.205/?page_id=89#comment-48294 [...] authors past work has been in gene therapies in mouse and dog models where the defect was in the retinal pigment epithelium, this study presents data from a defect in photoreceptors, specifically mutations in the RPGR gene [...] [...] authors past work has been in gene therapies in mouse and dog models where the defect was in the retinal pigment epithelium, this study presents data from a defect in photoreceptors, specifically mutations in the RPGR gene [...]

]]> Comment on Stargardt’s Disease angiogram by Preliminary Report Shows Stem Cells Reversed Macular Degeneration | Jim On Light http://webvision.med.utah.edu/2011/06/stargardts-disease-angiogram/#comment-46831 Preliminary Report Shows Stem Cells Reversed Macular Degeneration | Jim On Light Sat, 04 Feb 2012 05:27:52 +0000 http://webvision.med.utah.edu/?p=1334#comment-46831 [...] out the original article at The Lancet.  Very, very cool news.Thanks, Wikipedia, Wikipedia, and WebVision!Share this:ShareEmailPrint Tags: blind, eyesight, macular degeneration, medical, Stargardt's [...] [...] out the original article at The Lancet.  Very, very cool news.Thanks, Wikipedia, Wikipedia, and WebVision!Share this:ShareEmailPrint Tags: blind, eyesight, macular degeneration, medical, Stargardt's [...]

]]> Comment on Perception of Depth by jamesd http://webvision.med.utah.edu/book/part-viii-gabac-receptors/perception-of-depth/#comment-46125 jamesd Thu, 02 Feb 2012 09:32:39 +0000 http://155.100.105.205/?page_id=170#comment-46125 I've got a doozy for you guys, not exactly on the lines of what is being discussed. I've been a commercial pilot for 38 years, last month I failed the depth perception test and lost my lic! I've flown helicopters in and out of just about any and every limited area you could imagine but still I failed the test. I have known since birth I have a color peception problem (red/green) but still I could get a pilots lic in 5 different countries. Color blindness is a load of hogwash to people who are affected, I can see everything a nornal person can, but I admit when you mix the colors it beocmes much more difficult. I’ve got a doozy for you guys, not exactly on the lines of what is being discussed. I’ve been a commercial pilot for 38 years, last month I failed the depth perception test and lost my lic! I’ve flown helicopters in and out of just about any and every limited area you could imagine but still I failed the test. I have known since birth I have a color peception problem (red/green) but still I could get a pilots lic in 5 different countries. Color blindness is a load of hogwash to people who are affected, I can see everything a nornal person can, but I admit when you mix the colors it beocmes much more difficult.

]]> Comment on The Primary Visual Cortex by Tom http://webvision.med.utah.edu/book/part-ix-psychophysics-of-vision/the-primary-visual-cortex/#comment-45981 Tom Thu, 02 Feb 2012 01:25:31 +0000 http://155.100.105.205/?page_id=172#comment-45981 Hi. The site said the RF position and size are basic properties of a cell. So, how do get to find out the RF size? Most importantly, at V1, are all RF the same size? or they varies according to the eccentricities from the fovea? Thank you. Hi.
The site said the RF position and size are basic properties of a cell.
So, how do get to find out the RF size?
Most importantly, at V1, are all RF the same size? or they varies according to the eccentricities from the fovea?
Thank you.

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