61. 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 http://medicalcenter.osu.edu/patientcare/healthinformation/diseasesandconditions

Skip Navigation home about us referring ... Retinitis Pigmentosa Retinitis Pigmentosa Retinitis Pigmentosa What is retinitis pigmentosa? 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. What causes retinitis pigmentosa? Retinitis pigmentosa is caused by a variety of different inherited retinal defects - all of which affect the ability of the retina to sense light. The retinal defect may be found in the retina's rod cells (a type of retinal cell found outside of the central portion of the retina that help to transmit dim light and allow for peripheral vision), the retina's cone cells (a type of retinal cell found inside the center of the retina that help to transmit the color and detail of images), and/or in the connection between the cells that compose the retina. What are the symptoms of retinitis pigmentosa? The following are the most common symptoms of retinitis pigmentosa. However, each individual may experience symptoms differently, especially with severity and progression as the most obvious variables. Some persons with retinitis pigmentosa experience a slow, very progressive loss of vision, while others lose their visual ability much more quickly and severely. Other common symptoms may include:

62. RVIB - Understanding Retinitis Pigmentosa RP is an hereditary retinal degeneration. The name, retinitis pigmentosa, is not accurate, as itis implies inflammation of the retina. http://www.rvib.org.au/community_ed/rp.shtml

Home Page About RVIB Support RVIB Services for Clients ... Site map Search This Site: Advanced Search Eye Conditions Understanding Retinitis Pigmentosa (RP) "My vision is quite good in the daylight, but I am as blind as a bat at night!" What is Retinitis Pigmentosa (RP)? Retinitis Pigmentosa is the name given to a group of hereditary eye conditions in which there is a progressive deterioration of the retina. Rays of light pass through the cornea, then through the pupil (which is in the centre of the iris) and are focussed by the lens onto the macula, a small area in the centre of the retina. The retina is the delicate layer of tissue that lines the whole of the inside wall at the back of the eye. It is made up of 10 layers, with the outermost layers containing the seeing cells and the pigment layer. In the retina there are two types of seeing cells, rods and cones. The peripheral retina which gives us our side vision contains mainly rod cells. These cells provide our night vision and enable us to see the whole scene and to move about our surroundings. They work best in dim light. The macula which gives us our straight ahead vision contains cone cells. These cells allow us to see detail and discriminate colour. They work best in bright light.

63. Retinitis Pigmentosa Damage to the eye s inner back lining (retina) where images are focused occurs in retinitis pigmentosa. http://vision.about.com/od/retinitispigmentosa/

zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') zfs=0;zCMt='a43' About Vision Eye Diseases Retinitis Pigmentosa Vision Essentials Vision Symptoms You Should Never Ignore Daily Vision Tips ... Help zau(256,140,140,'el','http://z.about.com/0/ip/417/C.htm','');w(xb+xb+' ');zau(256,140,140,'von','http://z.about.com/0/ip/496/6.htm','');w(xb+xb); FREE Newsletter Sign Up Now for the Vision newsletter! See Online Courses Search Vision Retinitis Pigmentosa May Be Inherited Damage to the eye's inner back lining (retina) where images are focused occurs in retinitis pigmentosa. Alphabetical Recent Up a category Retinitis Pigmentosa Implant Early results from clinical trials show promise for an electronic implant that may aid retinal diseases such as retinitis pigmentosa and macular degeneration. Retinitis Pigmentosa Research Retinitis pigmentosa describes a group of inherited diseases that cause damage to the inner back layer of the eye (retina), leading to vision loss. How Retinitis Pigmentosa Occurs Genetics may be the underlying cause of many cases of retinitis pigmentosa. Retinitis Pigmentosa Causes Loss of Night Vision Retinitis pigmentosa may cause loss of night vision as the inner back portion of the eye, the retina, deteriorates.

64. Retinitis Pigmentosa Research retinitis pigmentosa describes a group of inherited diseases that cause damage to the inner back layer of the eye (retina), leading to vision loss. http://vision.about.com/od/retinitispigmentosa/f/retinitispig.htm

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65. Retinitis Pigmentosa retinitis pigmentosa (RP) refers to a group of inherited disorders that slowly retinitis pigmentosa International. http//www.rpinternational.org . http://www.healthatoz.com/healthatoz/Atoz/ency/retinitis_pigmentosa.jsp

66. Retinitis Pigmentosa retinitis pigmentosa is a hereditary degenerative disorder which is characterized by bilateral progressive loss of peripheral vision, night blindness, http://insight.med.utah.edu/opatharch/retina/retinitis_pigmentosa.htm

Home Up Contributors Submission Information ... Site Map Retinitis pigmentosa is a hereditary degenerative disorder which is characterized by bilateral progressive loss of peripheral vision, night blindness, and marked ring-like constriction of visual field. Fundus examination reveals an atrophic, waxy pallor to the optic disc with marked attenuation of retinal arterials(#22072). The retina itself shows a characteristic bony spicule-shaped disruption of pigmentation Histopathologically, this lesion is characterized by migration of macrophages and RPE cells filled with melanin into the retina, especially around blood vessels(#22075). This is thought to explain the bony spicule pattern of pigmentation seen on fundus examination. In addition, there is an atrophy of the photoreceptors of the retina as well as the choriocapillaris. See also (#22850, #22853, #22856) for other slides of retinitis pigmentosa. Clinical #22072 Clinical #22074 Med. Power #22075

67. Retinitis Pigmentosa retinitis pigmentosa. DESCRIPTION A group of diseases which result in the degeneration of the HealthDiseases and Conditions-retinitis pigmentosa http://www.tsbvi.edu/Education/anomalies/retinitis_pigmentosa.htm

RETINITIS PIGMENTOSA DESCRIPTION: TREATMENT: There is no known treatment for R.P. There is considerable research effort in this direction. Monitoring of retinal degeneration (locus and rate of change) via ERG and ophthalmoscopy of widest retinal periphery. A variety of optical aids may be effective (e.g., magnifiers if fields are not severely restricted, hand telescopes, CCTV, and "pocketscopes" - infra-red devices for highs use). Prism lenses may be useful. Higher levels of illumination may be helpful. IMPLICATIONS: GENETIC COUNSELING IS ESSENTIAL. Functional vision evaluations may need to be "as needed" (rather than annually). Identification of the type of R.P. is essential in establishing prognosis. Retinal specialists are usually better qualified to examine the widest area of the retina viewable. Regular eye exams are desirable, to track the rate and degree of deterioration. Related Websites: Retinal Degenerative Diseases Resources International Retinitis Pigmentosa Association Yahoo! Health-Diseases and Conditions-Retinitis Pigmentosa Back to Contents ... Back to TSBVI Education

68. Eye Repair As the years pass, those with the eye disease retinitis pigmentosa (RP) start to They found the first of many retinitis pigmentosa genetic defects that http://www.sfn.org/content/Publications/BrainBriefings/eye_repair.html

Login Directory Merchandise Contact Us ... Abstracts/Annual Meeting Publications Full size image available below Eye Repair Following an eruption of research, scientists are homing in on a variety of therapeutic strategies for the eye disease retinitis pigmentosa. New research areas that show promise include genetic manipulation, the infusion of protecting proteins and embryonic cell transplantation. Future therapies could not only delay or prevent the negative effects of RP, but may also head off other eye diseases. Eye cells perish. Sight diminishes. As the years pass, those with the eye disease retinitis pigmentosa (RP) start to see in blurs, as if a piece of wax paper is permanently strapped over their eyes. Eventually the disease's never-ending eye cell massacre leads to complete blindness. The untreatable, inherited disease, which afflicts 50,000 to 100,000 people in the U.S. alone, perplexed scientists for years. But then, less than a decade ago, a series of studies uncovered the building blocks for eye cell repair. In the late 1980s laboratory studies showed signs that eye cell transplantation may be possible. And in the early 1990s scientists' examination of our genes an inherited blueprint for human characteristics paid off. They found the first of many retinitis pigmentosa genetic defects that potentially could be targeted with therapies. Others found evidence in animal models that natural molecules known as survival factors could protect eye cells from death. This research is leading to:

69. Retinitis Pigmentosa - Center For Macular Degeneration - University Of Iowa The Center for Macular Degeneration is dedicated to research and treatment of degenerative diseases of the eye. http://www.c4md.org/rp/

@import "../css/cmdbasic.css"; Skip to content You are viewing the unstyled version of the Center for Macular Degneration's website. To view the styled version, try turning on Cascading Style Sheet (CSS) support in your browser (if it is off) or upgrading to a newer browser with CSS support. Retinitis Pigmentosa Overview FAQs Treatments Research Glossary Search Go Site Map Viewing Options Basic Large Print Reverse Print Text About the CMD About the Center CMD Laboratories Our People Mission Statement ... Help Us Additional Information Questions About Your Visit Understanding Research Related Sites Home Retinitis Pigmentosa Overview Frequently Asked Questions Below are some of the most frequently asked questions about what retinitis pigmentosa is, how it affects vision, and how it can be treated. How does retinitis pigmentosa affect vision? What are the symptoms of retinitis pigmentosa? What causes retinitis pigmentosa? What are some current treatments for retinitis pigmentosa? ... The University of Iowa Center for Macular Degeneration Contact Information

70. Understanding Retinitis Pigmentosa What is retinitis pigmentosa? What is the retina? What causes RP? retinitis pigmentosa (RP) is the name given to a group of hereditary eye disorders. http://www.rnib.org.uk/xpedio/groups/public/documents/PublicWebsite/public_rnib0

Skip Navigation shopping donations what's new link to us sitemap ... Low Vision Back to: Homepage Eye Info Search: Whole site Eye Info section Tips for screenreader users Jump to main content Eye Info navigation Eye Info contents Contact us FAQs Useful links Eye conditions ... Vision 2005 Eye Info Print Email Understanding retinitis pigmentosa Summary: Helping you, your friends and family understand more about your eye condition. This information is taken from our "Understanding" series of booklets. Understanding retinitis pigmentosa What is retinitis pigmentosa? What is the retina? What causes RP? What are the symptoms of RP? ... Who can I contact for further information? What is retinitis pigmentosa? Retinitis pigmentosa (RP) is the name given to a group of hereditary eye disorders. These disorders affect the retina, which is the light-sensitive tissue lining the back of the eye, in which the first stages of seeing take place. In RP, sight loss is gradual but progressive. It is unusual for people with RP to become totally blind as most retain some useful vision well into old age. What is the retina?

71. Retinitis Pigmentosa: Definition And Much More From Answers.com retinitis pig·men·to·sa ( pig mento s?, -m?n- ) n. A hereditary degenerative disease of the retina, characterized by night blindness, pigmentary. http://www.answers.com/topic/retinitis-pigmentosa

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Dictionary Medical Term Medical Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping retinitis pigmentosa Dictionary retinitis pig·men·to·sa pĭg mĕn-tō sə, -mən- n. A hereditary degenerative disease of the retina, characterized by night blindness, pigmentary changes within the retina, and eventual loss of vision. [New Latin pigmentōsa , feminine of pigmentōsus , pigmented.] Medical Term Retinitis pigmentosa and congenital deafness (Also called Usher syndrome.) A genetic disorder characterized by hearing impairment and an eye disorder called retinitis pigmentosa in which vision worsens over time. Some people with Usher syndrome also have balance problems. It is the most common disease that compromises both hearing and vision. More than half of all deaf-blind people have Usher syndrome. The syndrome is passed along in families by autosomal recessive inheritance, which requires two copies of the Usher gene for the disorder to be manifest. Each parent of a boy or girl with Usher syndrome has one standard and one mutated Usher gene. A child with the syndrome has received two mutated Usher genes, one from each parent. There are three different types of Usher syndrome (US). They are called Usher syndrome type 1 (US1), Usher syndrome type 2 (US2), and Usher syndrome type 3 (US3). Types 1 and 2 are more common than type 3.

72. Retinitis Pigmentosa retinitis pigmentosa Updated June 3, 2005 retinitis pigmentosa St. Luke s Cataract Laser Institute, Tarpon Springs FL http://www.noah-health.org/en/eye/disorders/retinitispigment.html

Skip navigation About NOAH Help English Spanish Both Advanced NOAH Eye Change text size: Retinitis Pigmentosa Updated: June 3, 2005 The Eye Clinic and Retinitis Pigmentosa British Retinitis Pigmentosa Society Frequently Asked Questions about Retinitis Pigmentosa Prevent Blindness America Genetics and Retinitis Pigmentosa British Retinitis Pigmentosa Society A Guide to Retinitis Pigmentosa British Retinitis Pigmentosa Society Retinitis Pigmentosa Retinitis Pigmentosa University of Virginia Health System (also in Spanish Retinitis Pigmentosa Merck Manual, 2nd Home Edition Retinitis Pigmentosa American Optometric Association Retinitis Pigmentosa: Risk Factors Foundation Fighting Blindness Understanding Retinitis Pigmentosa Royal College of Ophthalmologists What is Retinitis Pigmentosa? Foundation Fighting Blindness Bardet-Biedl Syndrome Bardet-Biedl Syndrome Foundation Fighting Blindness Bardet-Biedl Syndrome Foundation Fighting Blindness, Canada Clinical Trials: Bardet-Biedl Syndrome Clinical Trials.gov Usher Syndrome Usher Syndrome National Institute on Deafness and Other Communication Disorders Usher Sydrome National Eye Institute Usher Syndrome Deafblind Scotland What is Usher Syndrome?

73. Search Result For "Retinitis Pigmentosa" The Eye Clinic and retinitis pigmentosa; Frequently Asked Questions about retinitis pigmentosa; Genetics and retinitis pigmentosa; A Guide to Retinitis http://www.noah-health.org/search/results.php?lang=1&keyword=Retinitis Pigmentos

74. Potential Stem Cells Treatment For Retinitis Pigmentosa And Other Retinal Degene ? A team of researchers from The Scripps Research Institute was able to preserve visual function in mice that were genetically predisposed to developing a http://www.news-medical.net/?id=4839

75. Fetal Tissue Restores Lost Sight From Retinitis Pigmentosa ? Three years ago Elisabeth Bryant believed she would be blind for the rest of her life. http://www.news-medical.net/?id=5911

76. Retinitis Pigmentosa Translate this page 2.2 Krankheitsmerkmale (Symptome) der retinitis pigmentosa retinitis pigmentosa (RP) ist die Bezeichnung für eine Gruppe von erblichen Augenerkrankungen http://www.pro-retina.de/for/RP_bro.html

Pro Retina Merkmale und Verlauf der Retinitis pigmentosa 2.1 Die Netzhaut und ihre Funktion 2.2 Krankheitsmerkmale (Symptome) der Retinitis pigmentosa Syndrome, Sonderformen der Retinitis pigmentosa und andere Netzhautdegenerationen 3.2 Assoziierte Retinitis pigmentosa oder Syndrome 3.2.1 Usher-Syndrom 3.2.2 Bardet-Biedl-Syndrom 3.4 Besondere Formen der Netzhautdegeneration 3.5 Behandelbare Sonderformen der Retinitis pigmentosa 3.5.1 Atrophia gyrata 3.5.3 Refsum-Syndrom 3.6 Makuladegenerationen Grauer Star und Retinitis pigmentosa Vererbung 5.1 Erbkrankheit und Vererbung

77. Eye Conditions > Retinitis Pigmentosa -- EyeMDLink.com retinitis pigmentosa is a progressive retinal degeneration that begins with loss of Treatment for retinitis pigmentosa remains controversial, however, http://www.eyemdlink.com/Condition.asp?ConditionID=391

78. Retinitis Pigmentosa DESCRIPTION retinitis pigmentosa is characterized by poor night vision, Arch Ophthalmol 1996;114560563; Pagon RA retinitis pigmentosa. http://www.5mcc.com/Assets/SUMMARY/TP0796.html

Retinitis pigmentosa DESCRIPTION: Retinitis pigmentosa is characterized by poor night vision, constricted visual fields, bone spicule-like pigmentation of the fundus, and electroretinographic evidence of photoreceptor cell dysfunction. System(s) affected: Nervous Genetics: Autosomal dominant - 20% Autosomal recessive - 37% X-linked recessive - 4.5% Sporadic - 38.5% Incidence/Prevalence in USA: RP affects approximately 1 in 4,000 people in the US Predominant age: X-linked RP has the earliest onset of the major hereditary types and many X-linked patients are legally blind by age 30 Autosomal dominant RP has a later onset than autosomal recessive or X-linked recessive RP Leber's congenital amaurosis which is a variant of RP presents at birth Late onset RP typically is asymptomatic and unrecognized until age 40 or 50 Predominant sex: CAUSES: The genetic mutations responsible for RP have been identified in some families with RP, primarily those with the autosomal dominant form Mutations in the rhodopsin gene account for about 30% of cases with autosomal dominant RP Another 4-6% of autosomal dominant RP is due to a mutation in the gene for a photoreceptor protein, peripherin/RDS

79. ► Retinitis Pigmentosa A medical encycopedia article on the topic retinitis pigmentosa. http://www.umm.edu/ency/article/001029.htm

var MenuLinkedBy='AllWebMenus [2]', awmBN='530'; awmAltUrl=''; Disease Nutrition Surgery Symptoms Injury ... Encyclopedia (English) Toggle English Spanish Retinitis pigmentosa Overview Symptoms Treatment Prevention Definition: Retinitis pigmentosa is a progressive degeneration of the retina (part of the eye) which affects night vision and peripheral vision. Alternative Names: RP Causes, incidence, and risk factors: Retinitis pigmentosa commonly runs in families. The disorder can be caused by defects in a number of different genes which have recently been identified. The cells controlling night vision, called rods, are most likely to be affected. However, in some cases, retinal cone cells are most damaged. The hallmark of the disease is the presence of dark pigmented spots in the retina As the disease progresses, peripheral vision is greadually lost. The condition may eventually lead to blindness , but this is usually not complete blindness. Signs and symptoms often first appear in childhood, but severe visual problems do not usually develop until early adulthood. The main risk factor is a family history of retinitis pigmentosa. It is an uncommon condition affecting about one in 4,000 people in the U.S.

80. Retinitis Pigmentosa File: Latest Treatments For Ocular Disease Updated regularly over 100 descriptions of the latest treatments for retinitis pigmentosa—from specialists in ophthalmology, ocular physiology, http://www.lifestages.com/health/retiniti.html

The Retinitis Pigmentosa File SM C E N T E R F O R C U R R E N T R E S E A R C H Approved by Physicians' Home Page Medinex Seal of Approval WellnessWeb: The Patient's Network HONcode Principles of the Health On the Net Foundation Partners of CareData.com W Retinitis Pigmentosa File . Learn about late-breaking research from recognized experts at eye institutes worldwide. Compiled from the National Library of Medicine database at the National Institutes of Health, the Retinitis Pigmentosa File Retinitis Pigmentosa File informs you about studies being conducted at renowned departments of ophthalmology, including the Johns Hopkins University Wilmer Eye Institute, the University of Illinois Department of Ophthalmology and Visual Sciences, and Berman-Gund Laboratory for the Study of Retinal Degenerations at Harvard Medical School. The Retinitis Pigmentosa File brings you the inside medical story on: General Studies in Retinitis Pigmentosa Transplantation Treatment for RP Vitamin Therapy for RP Surgical Treatments for RP Gene Therapy for Ocular Disorders Access to Free Full-Text Articles from Postgraduate Medicine, the British Medical Journal, and the New England Journal of Medicine

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