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Topic: Retinitis pigmentosa


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In the News (Fri 18 Dec 09)

  
  Retinitis Pigmentosa- Health Encyclopedia and Reference
Retinitis pigmentosa is the name given to a group of diseases that affect the retina.
Retinitis pigmentosa is an inherited disorder in which excessive amounts of a substance called phytanic acid accumulate and cause extensive damage to the retina.
The symptoms of retinitis pigmentosa are night blindness, inflammation of the retina, marked limitation of the field of vision (tunnel vision), loss of kinesthetic sense (sense of body movement), shrinkage of the retina, clumping of retinal pigment, and dislodging of the blood vessels of the retina.
drdean.healthcentral.com /encyclopedia/408/278/Retinitis_Pigmentosa.html   (675 words)

  
 Retinitis pigmentosa - Wikipedia, the free encyclopedia
Retinitis pigmentosa, or RP, is a genetic eye condition.
RP is a group of inherited disorders in which abnormalities of the photoreceptors (rods and cones) or the retinal pigment epithelium (RPE) of the retina lead to progressive visual loss.
Mottling of the retinal pigment epithelium with bone-spicule pigmentation is typically pathognomonic for retinis pigmentosa.
en.wikipedia.org /wiki/Retinitis_pigmentosa   (597 words)

  
 Eye : Women Beauty   (Site not responding. Last check: 2007-10-08)
Retinitis pigmentosa is a rare disorder in which the cells in the light - sensitive retina in the eye are progressively lost.
Retinitis Pigmentosa can be inherited from our parents as genes carry family traits like eye and hair color, the shape of our face, etc. Retinitis Pigmentosa can be passed to succeeding generations by one of three genetic inheritance patterns—autosomal dominant, autosomal recessive, or X-linked inheritance.
Retinitis pigmentosa is diagnosed by examining the retina with an ophthalmoscope, an instrument which directs a beam of light into the eye.
www.womenfitness.net /beauty/eye/retinitis.htm   (752 words)

  
 Retinitis Pigmentosa - Center for Macular Degeneration - University of Iowa
Retinitis pigmentosa is a term used to refer to a group of disorders that affect the photoreceptor cells of the retina.
In most individuals with retinitis pigmentosa, the rod photoreceptor cells are selectively affected and as a result, these individuals experience difficulty seeing in dim light and a progressive loss of their peripheral vision.
Retinitis pigmentosa is quite rare, affecting only 1 in 4,000 people in the population.
cmd.ophth.uiowa.edu /rp   (307 words)

  
 Retinitis Pigmentosa
Retinitis Pigmentosa (RP) is the name given to a group of eye diseases often characterised by night blindness and the gradual loss of peripheral vision.
X-linked retinitis pigmentosa (XLRP) is a clinically and genetically heterogeneous degenerative disease of the retina.
Retinitis pigmentosa (RP) is a group of retinal degenerative diseases in which there is a slow and progressive loss of photoreceptors.
www.thedoctorsdoctor.com /diseases/retinitis_pigmentosa.htm   (1874 words)

  
 Retinitis Pigmentosa File: Latest Research
In terms of retinal prostheses, advances in microtechnology have allowed for the development of sophisticated, high-density integrated circuit devices that may be implanted either in the subretinal or epiretinal space.
Intercellular Trafficking of Adenovirus-Delivered HSV VP22 from the Retinal Pigment Epithelium to the Photoreceptors-Implications for Gene Therapy.
Visual loss caused by outer retinal degeneration in diseases such as retinitis pigmentosa or age-related macular degeneration can be reversed by electrical stimulation of the retina or the optic nerve (retinal or optic nerve prostheses, respectively).
ssl.adgrafix.com /users/lifestag/retinitis/latest.html   (4615 words)

  
 Retinitis Pigmentosa   (Site not responding. Last check: 2007-10-08)
Retinitis pigmentosa is an inherited condition of the retina in which specific photoreceptor cells, called rods, degenerate.
Retinitis pigmentosa is probably caused by mutations in at least ten different genes.
Retinal appearance of a patient with retinitis pigmentosa caused by a mutation in the rhodopsin gene.
www.ophth.uiowa.edu /RP.html   (318 words)

  
 Retinitis Pigmentosa
Retinitis Pigmentosa is the name given to a hereditary disease of the retina in the eye.
Retinitis Pigmentosa could be caused by a breakdown in the function of the rods or the cones in some part of the retina.
Since Retinitis Pigmentosa runs in families, all members in an affected family are urged to have a thorough eye examination.
merritew.tripod.com /retinitispigmentosa   (410 words)

  
 retinitis pigmentosa
Retinitis pigmentosa is a disorder in which the cells in the eye that sense light break down (degenerate), leading to a slow loss of vision and sometimes blindness.
Retinitis pigmentosa is a genetic disorder, which means that people are born with the disorder already programmed into their cells.
Because retinitis pigmentosa is a genetic disorder, there is no way to prevent it from developing, and there is no proven way to prevent or delay the associated vision loss.
www.aetnapharmacy.com /AP/ihtAP/r.WSIHW000/st.9339/t.9954.html   (771 words)

  
 An overview of retinitis pigmentosa
Retinitis pigmentosa is a group of hereditary diseases that causes the degeneration of the retina.
Often called night blindness, retinitis pigmentosa may develop in a family where either one parent or both parents are affected or where there is seemingly no familial history of the disease.
In cases where retinitis pigmentosa and hearing loss or deafness occur, there is a chance of Ushers Syndrome.
www.geocities.com /retinitis_pigmentosa_rp   (280 words)

  
 Retina Associates - Retinitis Pigmentosa
Retinitis pigmentosa (RP) refers to a group of related diseases which tend to run in families and cause slow but progressive loss of vision.
In retinitis pigmentosa there is gradual destruction of some of the nervous sensors in the retina along with abnormal pigment clumping.
In some cases, retinitis pigmentosa may be associated with other disease processes which might need evaluation by other medical specialists.
www.retina-associates.net /retinitis_pigmentosa.htm   (412 words)

  
 Retinitis Pigmentosa   (Site not responding. Last check: 2007-10-08)
Retinitis pigmentosa and its group of related diseases can run in families and cause slow, progressive loss of vision.
In retinitis pigmentosa, there is slow destruction of certain cells in the retina.
Patients with retinitis pigmentosa can develop other diseases, such as glaucoma and cataracts, and it is important to treat these conditions in order to maximize vision.
bri.wustl.edu /edu_retinitis.html   (226 words)

  
 What is Retinitis Pigmentosa?
Retinitis pigmentosa (RP) is the name given to a group of inherited eye diseases that affect the retina.
Retinitis pigmentosa causes the degeneration of photoreceptor cells in the retina.
Symptoms of Retinitis Pigmentosa are most often recognized in children, adolescents and young adults, with progression of the disease continuing throughout the individual’s life.
www.blindness.org /content.asp?id=45   (967 words)

  
 A Guide to Retinitis Pigmentosa
Retinitis Pigmentosa is the name given to a group of disorders of the Retina, all of which result in a progressive reduction in vision.
Retinitis Pigmentosa is a group of hereditary disorders whose common feature is a gradual deterioration of the light sensitive cells of the Retina.
The main features visible on the fundus are the retinal blood vessels, which spread out from a pale, whitish disc, the head of the optic nerve and in the centre a somewhat denser area called the macular.
www.brps.org.uk /Graphics/G_Guide.html   (2210 words)

  
 RETINITIS PIGMENTOSA
Retinitis pigmentosa or RP is a group of geneticallydetermined, progressive degenerations of the rods and cones of the retina.
The term retinitis pigmentosa was coined in 1857 by Donders, and like many older terms, it is a misnomer.
A dynamic test of retinal function, the ERG is a measure of the retina's electrical activity in response to light stimulation.
www.medhelp.org /lib/retinit.htm   (784 words)

  
 Retinitis Pigmentosa - Eye Disorders - Your Vision - VisionConnection   (Site not responding. Last check: 2007-10-08)
Retinitis Pigmentosa (RP) is the name given to a group of hereditary retinal diseases characterized by progressive loss of visual field, night blindness and reduced or absent electroretinogram (ERG test) recording, which indicates that a large portion of the retina is damaged.
Retinal cells are among the most specialized cells in the human body and depend on a number of unique genes to create vision.
It is caused by mutations in genes that are active in retinal cells.
www.visionconnection.org /Content/YourVision/EyeDisorders/RetinitisPigmentosa?cookie_test=1   (1339 words)

  
 Retinitis Pigmentosa   (Site not responding. Last check: 2007-10-08)
Retinitis pigmentosa is actually the name given to a group of hereditary eye disorders, all of which involve the eye's retina, the light-sensitive nerve layer that lines the back of the eye, and all of which cause a gradual, yet progressive, loss or reduction in visual ability.
Retinitis pigmentosa is caused by a variety of different inherited retinal defects - all of which affect the ability of the retina to sense light.
Some persons with retinitis pigmentosa experience a slow, very progressive loss of vision, while others lose their visual ability much more quickly and severely.
medicalcenter.osu.edu /patientcare/healthinformation/diseasesandconditions/eyecare/disorders/retinitis   (362 words)

  
 Retinitis Pigmentosa - VisionChannel   (Site not responding. Last check: 2007-10-08)
Retinitis pigmentosa is a term that refers to group of hereditary disorders that affect the retinaƂ’s ability to respond to light.
Retinitis pigmentosa may be caused by mutations in any one of at least ten different genes, resulting in a malfunction in the retinal pigment epithelial (RPE) cells and a breakdown of a portion of the outer segment disc membrane of photoreceptor cells.
Retinitis pigmentosa is caused by a genetic defect.
www.visionchannel.net /retinitis   (413 words)

  
 Retinitis Pigmentosa Overview
Retinitis pigmentosa (RP) is a group of inherited disorders in which abnormalities of the photoreceptors (rods and cones) or the retinal pigment epithelium (RPE) of the retina lead to progressive visual loss.
Typically, though, retinal disease in affected females with X-linked RP is much less severe than that seen in males, in contrast to adRP, in which males and females are, on average, equally affected.
A medical history, ophthalmic history, and physical examination focusing on features associated with syndromic RP are necessary to establish the cause of retinitis pigmentosa in an affected individual.
www.geneclinics.org /profiles/rp-overview/details.html   (3174 words)

  
 Retinitis Pigmentosa
Texas Association of Retinits Pigmentosa (TARP) The Texas Association of Retinitis Pigmentosa, Inc., TARP is a nonprofit, 501 (c) (3) organization based in Texas.
Retinal Implant Project The goal of the Retinal Implant Project is to develop a microelectronic prosthesis to restore some vision to patients with retinal disease, specifically macular degeneration and retinitis pigmentosa.
Retinitis Pigmentosa International Retinitis Pigmentosa International supports research to end blindness from degenerative eye disease, promote a public awareness and education campaign, and provide human services programs to better the quality of life for those with vision loss.
www.lowvision.org /retinitis_pigmentosa.htm   (1122 words)

  
 Retinitis pigmentosa - BBC - Health - Conditions - Retinitis pigmentosa
Retinitis pigmentosa is actually the name given to a group of hereditary eye Retinitis pigmentosa is caused by a variety of different inherited retinal
Retinitis pigmentosa is a term coined by Donders in 1855.
Retinitis pigmentosa (RP) is the name given to a group of hereditary diseases of the retina - the light sensitive
pigmentosa.getinfoeasy.com /?q=pigmentosa-retinitis-pigmentosa   (203 words)

  
 Handbook of Ocular Disease Management - Retinitis Pigmentosa
Retinal pigmentary changes occur in the form of fine mottling or granularity with surrounding areas of atrophy.
Retinitis pigmentosa is believed to stem from a genetic defect, which leads to a disturbance in the retinal pigment epithelium (RPE) and the breakdown of the photoreceptors' outer segment disc membranes.
Understandably, the untreatable progressive nature of retinitis pigmentosa is extremely unsettling for the patient and their loved ones; it is often beneficial to recommend psychological or family counseling early in the disease.
www.revoptom.com /handbook/sect5q.htm   (802 words)

  
 Retinitis pigmentosa
Retinitis pigmentosa is a progressive degeneration of the retina (part of the eye) which affects night vision and peripheral vision.
The hallmark of the disease is the presence of dark pigmented spots in the retina.
The main risk factor is a family history of retinitis pigmentosa.
www.healthscout.com /ency/1/001029.html   (247 words)

  
 Retinitis Pigmentosa
Night blindness refers to difficulty seeing in the dark; it is the initial symptom of RP and usually occurs within the first two decades of life.
The diagnosis of RP is suspected due to a history of night blindness; it is confirmed by measurement of a loss in side vision as well as characteristic pigmentary changes on examination of the retina, the light-sensitive structure that covers the inside of the eye.
The National Retinitis Pigmentosa Foundation Fighting Blindness (1401 Mt. Royal Avenue, Baltimore, MD 21217) funds I I centers that are actively involved with RP research.
uic.edu /com/eye/LearningAboutVision/EyeFacts/RetinitisPigmentosa.shtml   (930 words)

  
 Understanding retinitis pigmentosa
Retinitis pigmentosa (RP) is the name given to a group of hereditary eye disorders.
This inheritance pattern is sometimes difficult to identify in a family where there have been no sons for several generations, as the faulty gene could have passed down a line of female carriers and then suddenly affect a male child.
One example of this is Usher syndrome, where people develop the dual disability of hearing loss and retinitis pigmentosa.
www.rnib.org.uk /xpedio/groups/public/documents/PublicWebsite/public_rnib003662.hcsp   (1430 words)

  
 eMedicine - Retinitis Pigmentosa : Article by Anthony de Beus, MD, PhD   (Site not responding. Last check: 2007-10-08)
Background: Retinitis pigmentosa (RP) should be regarded as a phenotypic description of several related, yet distinct, dystrophies of the photoreceptors and the pigment epithelium.
Retinitis punctata albescens is a form of RP with numerous flecks, whereas fundus albipunctatus is a form of CSNB with a similar appearance.
Retinal findings consist of whitish gray dots in the superficial layer of the retina and flecks in the macular area that are not detectable by fluorescein angiography.
www.emedicine.com /oph/topic704.htm   (6199 words)

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