| A retinitis pigmentosa or retinitis pigmentosa(or | | | | become totally blind as most retain some useful |
| retinitis pigmentosa, retinopathia pigmentosa, RP) | | | | vision well into old age. |
| is a genetic disease that attacks the retina | | | | Causes of Retinitis pigmentosa (RP): |
| causing destruction of their cells. The patient has | | | | It is currently known that there are many |
| the disease gradually loses the sight First night | | | | different inherited problems causing RP. In all |
| vision after vision even during the day. The loss | | | | Retinitis pigmentosa (RP) -associated conditions |
| of perception of colors and shades in contrast | | | | however, the ability of the retina to respond to |
| also gradually affects the patient. | | | | light is affected. The problem can be in numerous |
| Retinitis pigmentosa (RP) is a group of inherited | | | | parts of the retina such as the rod or cone cells, |
| diseases of the retina (it is structure of the Eye) | | | | or in the connections between the cells of the |
| that all lead to a gradual progressive reduction in | | | | retina. |
| vision. Difficulties with night vision, sight and | | | | Symptoms of RP |
| peripheral vision are the first things that are | | | | The most common first symptom is difficulty in |
| noticed. Later, reading vision (detailed vision) and | | | | seeing in poor light, for example outdoors at dusk, |
| color vision are affected and exaggerated. The | | | | or in a dimly lit room. A second indication is |
| age at which symptoms begin is variable and may | | | | reduction of the visual field, in which view is lost |
| vary with the different hereditary and genetic | | | | from the sides, or from above and below. This is |
| types (Genetics and Retinitis Pigmentosa). The | | | | frequently referred to as tunnel vision and means |
| time and rate at which vision deteriorates is | | | | that the rod cells, and several of the outer cone |
| variable but is generally very slow with changes | | | | cells, have been affected first. |
| occurring over years rather than months. In | | | | In some Retinitis pigmentosa (RP) - associated |
| approximately half of all cases (50 to 60%) there | | | | conditions central vision is lost first. The first signs |
| are other family members with RP. There are | | | | of this are complicated in reading print or carrying |
| main three most important inheritance patterns, | | | | out detailed work. All Retinitis pigmentosa (RP) |
| autosomal recessive, autosomal dominant and | | | | conditions are progressive, but the speed at which |
| X-linked inheritance, depending on the genetic | | | | deterioration takes place varies from one person |
| cause (Genetics and Retinitis Pigmentosa). Retinitis | | | | to another. |
| pigmentosa mainly affects approx 1 in 3,000 to | | | | In various types of Retinitis pigmentosa, glare |
| 4,000 people. | | | | from bright lights is an increasing problem and |
| Retinitis pigmentosa (RP) is a group name of | | | | trouble, although some people do not experience |
| hereditary eye disorders. These disorders have an | | | | this until the more advanced stages. |
| effect on the retina, which is the inside layer | | | | There is no hard and fast rule, but in most cases |
| light-sensitive tissue, lining the back of the eye, in | | | | the early symptoms of Retinitis pigmentosa |
| which the first stages of seeing take place. In RP, | | | | increase and develop between the ages of 10 and |
| sight loss is slow and gradual but progressive. It is | | | | 30. |
| abnormal and unusual for people with RP to | | | | |