anatomy of ciliary body

Anatomy Of Ciliary Anatomy Of Ciliary BodyBody

Miss. Ayesha Kazmi.Miss. Ayesha Kazmi.OTC STUDENT.OTC STUDENT.

LRBT School Of Ophthalmic Para medicine.LRBT School Of Ophthalmic Para medicine.

LRBT Free Eye Base Hospital, Korangi 2 ½ LRBT Free Eye Base Hospital, Korangi 2 ½ Karachi. Karachi.

Ciliary Body:Ciliary Body:

Definition:

“ It is the intermediate part of the uveal tract. It is vascular and triangular in structure.”

Location:Location: It is located between the iris and choroid.

Parts Of Ciliary Body:Parts Of Ciliary Body:

It is divided into two parts:

1. Pars Plicata.

2. Pars Plana.

1.1. Pars Plicata:Pars Plicata:

It is the anterior one third (about 2mm) wide, it is

vascular.

It consist of :

i. Ciliary Muscles.

ii. Stroma.

iii.Ciliary Processes.

i.i. Ciliary Muscles:Ciliary Muscles: Non-striated having longitudinal, circular and radial

(oblique) fibers.

ii.ii. Stroma:Stroma: It consists of connective tissue, pigments, blood

vessels and nerves.

iii.iii. Ciliary Processes:Ciliary Processes: A finger- like projection about 70-80 in numbers.

These processes are the main site of aqueous production.

2. Pars Plana:2. Pars Plana: It is posterior two third (about 4mm), it is

relatively avascular.

It consist of two epithelial layers:

i. Non pigmented cells.

ii. Pigmented cells.

Epithelial Cells:Epithelial Cells:

Functions Of Ciliary Body:Functions Of Ciliary Body:

It contains Ciliary Muscles which help in accommodation.

Formation of aqueous humour by Ciliary Processes.

It provides attachment to the Zonules. It also anchor the lens in place.

Pars Plicata & Pars PlanaPars Plicata & Pars Plana

Pars Plicata & Pars PlanaPars Plicata & Pars Plana