Retinitis Pigmentosa

Question 1

What kind of vision does retinitis pigmentosa result in?

Answer 1

Funnel vision - because the peripheral retina is mostly affected.

Question 2

What are the features of retinitis pigmentosa?

Answer 2

1. Night blindness is the initial sign
2. Funnel (Tunnel) vision

Question 3

What are some of the signs seen on fundoscopy in retinitis pigmentosa?

Answer 3

1. Black bone spicule-shaped pigmentation in the peripheral retina.
2. Mottling of the retinal pigment epithelium.

Question 4

What diseases are associated with retinitis pigmentosa?

Answer 4

• Refsum disease:
  
  • cerebellar ataxia, peripheral neuropathy, deafness, ichthyosis
• Usher syndrome
• Abetalipoproteinemia
• Lawrence-Moon-Biedl syndrome
• Kearns-Sayre syndrome
• Alport’s syndrome