Retinitis pigmentosa has a prevalence of approximately 1 in 4,000 people. An estimated 1.5
million people are affected worldwide. Affected patients typically report night blindness in
adolescence and loss of side vision in young adulthood. As the condition progresses,
patients develop tunnel vision and eventually lose central vision as well. Findings on ocular
examination in more advanced stages include attenuated retinal vessels, waxy pallor of the
optic discs, and intraretinal pigment distributed circumferentially around the midperipheral …