Retinitis pigmentosa is an inherited disease of the retina that affects 1 in 3,500 people and is one of the leading causes of blindness. It was first discovered and diagnosed by According to an NHGRI article “Learning About Retinitis Pigmentosa” (2013), the disease can be diagnosed at age of 10 in most cases. There are different stages of retinitis pigmentosa. Generally, one of the first common signs is the degeneration of the rod cells. This causes the patient to lose their peripheral vision and acquire tunnel vision. On the other hand, some patients’ first symptoms of retinitis pigmentosa include lose of central vision. In both instances, the progressive cone and rod breakdown causes disruption in color perception, night blindness, peripheral and/or central vision. Because of the variability presented by retinitis pigmentosa, not all patients experience these symptoms during their lifetime, and not all patients become completely blind. Unfortunately, this disease cannot be corrected with corrective lenses and there are no known cures (Learning, 2013).
“Learning about Retinitis Pigmentosa.” National Human Genome Research Institute (NHGRI), 27 Dec. 2013, www.genome.gov/13514348/learning-about-retinitis-pigmentosa/#al-5.