The progressive blindness of<unk>  results from retinitis pigmentosa. The photoreceptor cells<unk> ually start to degenerate from the outer periphery to the center of the retina, including the macula. The degeneration is<unk> ually first noticed as night blindness (nyctalopia); peripheral vision is gradually lost, restricting the visual field (tunnel vision), which generally progresses to complete blindness. The qualifier pigmentosa reflects the fact that clumps of pigment may be visible by an ophthalmoscope in advanced stages of degeneration. The hearing impairment associated with<unk>  is caused by damaged hair cells in the cochlea of the inner ear inhibiting electrical impulses from reaching the brain. It is a form of dysacusis.
Usher syndrome
Myhre syndrome
Sly syndrome
Irlen syndrome
McGillivray syndrome
Fabry disease
Bart syndrome
Sugarman syndrome