retinitis pigmentosa…

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eye, slit-lamp exam, rp, retinitis pigmentosa, progressive degeneration, the retina, the eye, affects night vision, peripheral vision, retinitis pigmentosa commonly runs in families, defects, number of different genes which have, been identified, cells controlling night vision, rods, most likely to be affected, retinal cone cells, most damaged, hallmark, presence of dark pigmented spots, in the retina, the disease progresses, peripheral vision is greadually lost, eventually lead to blindness, not complete blindness, signs, symptoms often first appear in childhood, severe visual problems, develop, early adulthood, main risk factor, family history of retinitis pigmentosa, an uncommon condition affecting, 1 in 4,000 people, vision decreased at night, in reduced light, loss of peripheral vision, loss of central vision, in advanced cases, tests determine the integrity, the retina, visual acuity, refraction test, color defectiveness determination, pupillary reflex response, slit lamp examination, intraocular pressure determination, retinal examination by ophthalmoscopy, ultrasound, the eye, retinal photography, fluorescein angiography, electroretinogram, a record, the action currents, the retina produced by visual stimuli, no effective treatment, use of sunglasses to protect the retina from ultraviolet light, vision-preserving effect, though controversial, recent studies have indicated that treatment, antioxidant agents, vitamin a palmitate, delay the progression, of this disease, referral to a low vision specialist is very helpful in maintaining patient independence, regular visits to eye care specialist, important to monitor, the development of cataracts, retinal swelling, continue to progress, though at a very slow pace, complete blindness is uncommon, peripheral, central loss of vision, eventually occur, many other syndromes, features similar to retinitis pigmentosa have been described, friedreich's ataxia, mucopolysaccharidosis, muscular dystrophy, myotonic dystrophy, laurence-moon syndrome, laurence-moon-bardet-biedl syndrome, an inherited disorder causing mental deficiency, obesity, short stature, vision problems, muscular weakness, night vision becomes difficult, symptoms of this disorder develop, genetic counseling, determine the risk of this disease occurring, person's offspring.