11/1/2023 0 Comments Pigmented layer of retina![]() It is bounded on the interior by Bruch’s membrane. Position and structure: The choroid is the middle tunic of the eyeball. The double layered epithelium covering the ciliary body produces the aqueous humor. Function: The ciliary muscle is responsible for accommodation.The suspensory ligament, the zonule, extends from the pars plana and the intervals between the ciliary processes to the lens capsule. ![]() It consists of anterior pars plicata and the posterior pars plana, which lies 3.5mm posterior to the limbus. Numerous ciliary processes extend into the posterior chamber of the eye. Position and structure: The ciliary body extends from the root of the iris to the ora serrata, where it joins the choroid.Under slit lamp retro-illumination they appear reddish due to the fundus reflex. ![]() Caucasians at birth always have a grayish-blue iris as the pigmented layer only develops gradually during the first year of life. Even in albinos (see impaired melanin synthesis), the eyes have a grayish blue iris because of the melanin deficiency.
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