A posterior vitreous detachment at which location has the highest likelihood of causing a retinal tear?

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Prepare for the NBEO Ocular Anatomy Posterior Segment and Cranial Nerves Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

A posterior vitreous detachment at which location has the highest likelihood of causing a retinal tear?

Explanation:
Traction from a posterior vitreous detachment is most likely to produce a retinal tear where the vitreoretinal adhesion is strongest. That strongest attachment is at the vitreous base, which sits right at the border of the retina near the ora serrata. When the posterior hyaloid detaches, pulling at the base exerts the greatest force on the retina, making a full‑thickness tear most likely there. Traction in other attachment areas, like near the optic disc or the macula, can lead to different problems (such as macular holes or other changes) but isn’t as prone to causing peripheral tears as the base.

Traction from a posterior vitreous detachment is most likely to produce a retinal tear where the vitreoretinal adhesion is strongest. That strongest attachment is at the vitreous base, which sits right at the border of the retina near the ora serrata. When the posterior hyaloid detaches, pulling at the base exerts the greatest force on the retina, making a full‑thickness tear most likely there. Traction in other attachment areas, like near the optic disc or the macula, can lead to different problems (such as macular holes or other changes) but isn’t as prone to causing peripheral tears as the base.

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