Which sign may be observed as vitreous prolapse in lens subluxation?

• A. Iris prolapse
• B. Hyperemia
• C. Vitreal prolapse (sometimes)
• D. Retinal detachment

Answer: (C)

In lens subluxation, weakness or rupture of the zonules allows abnormal movement of the vitreous body. The sign that may be observed is vitreous prolapse, where vitreous strands or a vitreous veil can be seen in the anterior chamber or near the lens due to forward movement of vitreous from the posterior segment. This is not always present, but it can occur when the vitreous becomes displaced as the lens shifts. Other signs like iris prolapse would point to wound-related issues, hyperemia is nonspecific, and retinal detachment is a posterior segment complication rather than a direct sign of vitreous prolapse in subluxation.