Distinguish lens-induced uveitis from primary anterior uveitis.

• A. Lens-induced uveitis is secondary to lens pathology and may produce persistent, unilateral uveitis with lens signs; primary uveitis originates in the uveal tract without lens abnormalities.
• B. Lens-induced uveitis always affects both eyes.
• C. Primary uveitis arises from lens pathology.
• D. Lens-induced uveitis never involves the posterior segment.

Answer: (A)