Pars planitis can affect which structures?

Pars planitis can affect which structures?

• A. Pars plana and peripheral retina
• B. Optic nerve
• C. Lens
• D. Cornea

Answer: (A)

Pars planitis is a form of intermediate uveitis where inflammation mainly targets the vitreous and the peripheral retina near the vitreous base. The characteristic signs are snowballs in the inferior vitreous and snowbanks along the pars plana at the ora serrata. Because the inflammatory process is centered in these posterior-segment structures, the optic nerve, lens, and cornea are not typically involved. Therefore, the structures that can be affected are the pars plana and peripheral retina.