Patellar fossa is a depression of the anterior vitreous caused by which structure?

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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

Patellar fossa is a depression of the anterior vitreous caused by which structure?

Explanation:
The patellar fossa is a shallow depression in the anterior surface of the vitreous that lies opposite the posterior surface of the lens. It’s formed by the posterior lens capsule pressing into the vitreous, creating a small pit in the anterior hyaloid membrane. The iris, cornea, or the anterior lens don’t create this indentation, so the structure responsible is the posterior surface of the lens (posterior lens).

The patellar fossa is a shallow depression in the anterior surface of the vitreous that lies opposite the posterior surface of the lens. It’s formed by the posterior lens capsule pressing into the vitreous, creating a small pit in the anterior hyaloid membrane. The iris, cornea, or the anterior lens don’t create this indentation, so the structure responsible is the posterior surface of the lens (posterior lens).

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