In addition to RP there are a number of other Inherited Retinal Diseases (IRDs). Here is a list of some of them
Usher Syndrome
Usher Syndrome is a disease that combines RP with hearing loss. There are typically 3 types of Usher Syndrome. Type 1 causes severe hearing loss noticeable at birth along with severe RP which occurs during childhood. Type 2 has moderate to severe hearing loss that is noticeable in adolescence and RP is noticeable in adolescence or early adulthood. Type 3 has progressive hearing loss and late onset RP. Usher Syndrome is a recessive only condition and can only occur when both parents are carriers of the gene.
Leber Congenital Amaurosis (LCA)
Leber Congenital Amaurosis is a retinal disease that causes severe vision loss at birth or early childhood. It is the leading cause of blindness in children. It is a recessive only disease which means both parents must be carriers of the mutated gene.
Stargardts Disease
Stargardts Disease is a condition that affects the Macula in the retina. It causes vision loss in the central vision and is usually noticeable in adolescence or early childhood.
Cone-Rod Dystrophy
Cone-Rod Dystrophy is a condition that affects both the Cones and Rods of the retina. Early symptoms are night blindness, blurry vision, loss of peripheral vision and severe light sensitivity. Cone-Rod Dystrophy can be dominant, recessive or x-linked.
Choroideremia
Choroideremia is a condition that affects the choroid which controls blood flow to the retina. Symptoms are night blindness, blurry vision, lack of color vision and lack of peripheral vision.
Achromatopsia
Achromatopsia is a condition that leads to a lack of color vision. People with the condition see only in grey scale. They may also have blurry vision. The disease is recessive only which means both parents must be carriers of the mutated gene.
