Capsule of Ténon

The capsule of Ténon consists of a thin membrane which envelops the eyeball from the optic nerve to the ciliary region, separating it from the orbital fat and forming a socket in which it plays. Shown is the capsule of Ténon. The aponeurosis is seen from behind forward on the posterior hemisphere of the globe. Labels: a, Cellulofibrous intermuscular lamina; b, deep leaf of the sheath incised at the point where it leaves the muscle to fold itself on the posterior hemisphere when it forms the posterior capsule; d, Partly incised; c, Serous membrane.

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