What is the third strongest vitreoretinal attachment?

• A. Vitreous base
• B. Posterior lens
• C. Optic disc
• D. Macula

Answer: (C)

Vitreoretinal attachments vary in how firmly the vitreous cortex sticks to the retina. The firmest point is the vitreous base at the ora serrata, where the vitreous is tightly integrated with the peripheral retina. The next strongest connection is at the macula, where the premacular vitreous cortex adheres to the retinal surface via the internal limiting membrane. The third strongest attachment is at the optic disc, where the posterior hyaloid forms substantial but comparatively smaller adhesions to the nerve head region. This arrangement helps explain patterns of traction during posterior vitreous detachment and why optic-disc–level adhesion can influence certain vitreoretinal conditions. The posterior lens attachment is comparatively weaker and not among the strongest vitreoretinal ties.