OCULAR ANA Set 2 (The Ciliary Body)

(DOC GR NOTES)

Peripheral margin of Iris

Anterior portion of the ciliary body

Choroid

Posterior portion of the ciliary body

Ciliary body

Dangerous area of the eye

Ciliary body

It is attached to the free border of choroid up to the base of iris extending from ora seratta to limbus or scleral spur

6 mm

Ciliary body measures?

2

Theciliary body is divided to how many main parts?

• Pars plana / Orbicularis ciliaris

• Pars plicata / Corona ciliaris

The two main parts of the ciliary

Pars plana / Orbicularis ciliairis

Least vascular part of the ciliary body and the site of surgical entry

Posterior

_______ surface of pars plana / Orbicularis ciliaris is smooth

Pars plana / Orbicularis ciliaris

This extend from the ORA SERATTA to the PARS PLICATA

4 mm

Pars plana / Orbicularis ciliaris measures?

Pars plicata / Corona ciliaris

This main part of the ciliary body has an anterior surface which is RIDGED or PLICATED

Pars plicata / Corona ciliaris

Most vascular structure of the ciliary body

2 mm

Length of ciliary processes

1 mm

Height of ciliary processes

0.5 mm

Width of ciliary processes

60 - 70

How many folds or fingers of tissue nourishes the cornea and lens (AH) and has 2 fingers of tissue?

NON PIGMENTED EPITHELIUM AND PIGMENTED EPITHELIUM

2 fingers of tissue in the ciliary body. Found in the 70 folds of tissue

NON PIGMENTED EPITHELIUM

One of the 2 fingers of tissue and is the outer layer, anterior continuation to the sensory retina

PIGMENTED EPITHELIUM

ant. continuation of the RPE

1. Ciliary stroma

2. Supraciliaris (Supraciliary lamina)

Layers of the ciliary body (In to out)

Supraciliaris (Supraciliary lamina)

outermost layer adjacent to sclera

Supraciliaris (Supraciliary lamina)

zone of transition from ciliary stroma to the sclera

Supraciliaris (Supraciliary lamina) cells

Collagen, fibroblast, melanocytes

Ciliary stroma

consist of LOOSE CT, rich in BV and melanocytes

Ciliary stroma

this is filled with ciliary muscle

Ciliary stroma

This extend from the scleral spur to choroid

Longitudinal Fiber / Brucke’s muscle

Type of ciliary muscle and the OUTEMROST layer

Longitudinal Fiber / Brucke’s muscle

Meridional fibers

Scleral spur; choroid

Longitudinal Fiber originates at ______ then towards the ______

Longitudinal Fiber / Brucke’s muscle

main bulk lying parallel to overlying sclera

Radial fibers

Type of ciliary muscle

Radial fibers

Oblique fibers

Brucke’s muscle

Radial fibers originate from the anterior portion of ______________ and run obliquely to become continuous with circular muscle fibers

Circular fibers

Muller’s muscle

Circular fibers / Muller’s muscle

innermost and run around the eyeball

Circular fibers / Muller’s muscle

parallel to the lens equator

Circular fibers / Muller’s muscle

site of attachment of the zonular fibers

Ciliary epithelium

aqueous producer

Ciliary epithelium

double layer of cuboidal cells extending from iris root to the retina

Ciliary epithelium

Type of ciliary muscle

Non pigmented epithelium

inner layer of cells / NERVOUS PART OF THE RETINA

Non pigmented epithelium

have the ability to produce SECRETION

Pigmented epithelium

continuous to the RPE and rest agains stroma

Stroma

Pigmented epithelium is continuous to the RPE and rest against _______

Anterior ciliary arteries

Blood supply of Ciliary body

Long and short ciliary arteries

Blood supply of Ciliary body

Zonula occludens of NON PIGMENTED CILIARY EPITHELIUM

Blood - Aqueous Barrier

Non - fenestrated Iris Vessels

Blood - Aqueous Barrier

Epithelial layers

Damage to the blood - aqueous barrier will result in seperation of which layer?

Damage to pigmented epithelium

Damage to the blood - aqueous barrier will cause

Plasma membrane

Damage to the blood - aqueous barrier will cause LEAKAGE of _________

Increase IOP

Damage to the blood - aqueous barrier will cause LEAKAGE of plasma membrane causing?