![]() Furthermore, stem technology helps in replacement of the affected retinal cells. Neuroprotective agents help in maintaining a small portion of vision. Medicinal drugs can help in development of these proteins. Some cases of Usher Syndrome are caused because of “nonsense” mutation that causes underdevelopment of essential proteins. A healthier version of duplicate genes is injected into the retina for reinstalling function. Since this rare eye disease is inherited, gene therapy is essential. Thus, usage of hearing aids and cochlear implants is important. Treatment: Treatment for this includes treatment of the deafness and speech impairment. Type 3: This type is very rare and is generally found in people having their origin in Finland. Lastly, the symptoms of retinitis pigmentosa show itself in the teenage years. The patients also develop comprehensible speech. Type 2: Deafness also affects the patient at an early age but is less severe than type 1 and therefore the hearing aids work in providing audibility. Along with deafness and blindness, the child also fails to evolve intelligible pronunciation. Signs of retinitis pigmentosa are also evident. Type 1: Deafness affects from the very birth and is so acute that hearing aids do not help. Usher syndrome can be broadly categorized into type 1, type 2 and type 3. ![]() This rare eye disease is mostly inherited. Deafness is the first symptom that can be observed in a child. Usher Syndrome causes both deafness and blindness (due to retinitis pigmentosa) in a patient. These do not help in improving the complete visual capability but helps in distinguishing between lit and dark places. The microchips electronically indicate the remaining cells which in turn pass the wave to the optic nerve for processing vision. Experimentation is going on which deals with replacement of the actually dead retinal cells with an electronic microchip that will bring vision to the living cells. Replacement of retinal pigment epithelium cells will help in the better nourishment of the living retinal cells. Stem technology helps to replace the degenerated cells and dead retinal cells i.e. Other technologies are being discovered by the scientists that include the stem cell technology and retina implantation. Treatment: For maximization of the existing vision, one can use magnifying or telescopic lenses. It affects both eyes equally and it is tough to foresee how it will affect the patient at a particular time. The degree of progression and the rate of loss of vision also differ from person to person including diseased individuals of the same family. In some cases it can be noticed in children in some others it is not evident until adulthood is reached. Earliest symptoms of this rare eye disease are low visibility in dim light including when going from a well lit area to a dark place and vice versa. Although Retinitis pigmentosa causes blindness, a lot of people retain their central vision till their middle age. Retinitis pigmentosa which is an inherited disease kills these cells gradually leading to blindness. These cells can be found in the rear of the eye in the retina. Rod cells help with night vision and cone cells with colour vision and reading. Further effectiveness of this treatment is being monitored. This has not had any side effects and has improved vision. In this, the patient’s retina is detached and a safe virus is injected to enhance vision. A complete cure has not been formulated however, a treatment has been materialized. ![]() Researchers have found CHM gene as the causative agent of this disease. Treatment: For low vision, aids like magnifying glasses or telescopic lenses can be used. This progresses overtime resulting in narrowing of vision and finally complete blindness in the late adulthood. Due to insufficiency of nourishment from the choroid, the rod cells die leading to partial blindness during night. The work of the choroids is to deliver nutrients and oxygen for the nourishment of the retinal pigment epithelial cells as well as the cone and rod cells which are photoreceptors. Choroideremia damages the choroid (a network of blood vessels) present at the back of the retina. Otherwise, Choroideremia in all probability goes underdiagnosed because its symptoms are more or less like a handful of other retinal problems like retinitis pigmentosa. The typical appearances at the rear of the eye and X-linked genetic pattern assist the doctors in detecting this rare eye disease. The estimate of loss of vision may differ from person to person but it will eventually lead to complete blindness. ![]() It is a genetic condition that intensifies loss of vision largely in males. Choroideremia is caused due to the decay of the photoreceptor cells lining at the rear of the eye which helps in light-sensing. ![]()
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