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ciliary margin

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ciliary margin
n.
1. The border of the iris that is attached to the ciliary body.
2. The border of the tarsus of an eyelid.

ciliary margin,
the peripheral border of the iris, continuous with the ciliary body.

iris, plateau
An anatomical anomaly in which the iris lies in a plane rather than bulging anteriorly. This is due to the fact that the root (or ciliary margin) of the iris is inserted more anteriorly into the ciliary body than is usual. On dilatation of the pupil the peripheral iris expands against the trabecular meshwork. It can predispose the eye to angle-closure glaucoma.


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In animals whose eyes can regenerate, such as fish and frogs, stem cells reside in the ciliary margin, an area on the outer edge of the retina near the iris.
 
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