X-linked retinitis pigmentosa (XLRP) is an inherited retinal disease causing significant vision loss, sometimes complete blindness, in males. Females are often considered to be unaffected carriers of the condition, with a 50 percent chance of passing XLRP to their sons. A calico cat. What age group is affected by retinitisRead More →

Retinitis pigmentosa occurs in about 1 of every 4,000 people in the United States. When the trait is dominant, it is more likely to show up when people are in their 40s. When the trait is recessive, it tends to first appear when people are in their 20s. Who isRead More →