D2I2.
genetic

Retinitis pigmentosa

Retinitis pigmentosa (RP) is a member of a group of disorders called inherited (IRD) that cause loss of vision. Symptoms include trouble seeing at night and decreasing vision. As peripheral vision worsens, people may experience "tunnel vision". Complete blindness is uncommon. Onset of symptoms is generally gradual and often begins in childhood.

Underlined words are explained — tap any of them.

Symptoms — what it feels like

  • ·Trouble seeing at night, decreased vision

Causes — why it happens

  • ·

How it's found

  • ·Eye examination

Treatment

  • ·Low vision aids, portable lighting, orientation and mobility training
Plain-language summary adapted from Wikipedia. Not medical advice.