Vascular Structure Of Eye

It is mainly responsible for vision differentiation of colour the human eye can differentiate approximately 10 12 million colours and maintaining the biological clock of the human body. The eye is the photo-receptor organ.

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Anatomically the eyeball can be divided into three parts the fibrous vascular and inner layers.

Vascular structure of eye. Middle coat vascular tunic The middle layer of tissue surrounding the eye also known as the vascular tunic or uvea is formed from behind forward by the choroid the ciliary body and the iris. Fibrous vascular pigmented and nervous retina. The eye has two different vascular systems.

There are 6 sets of muscles attached to outer surface of eye ball which helps to rotate it in different direction. Originates in the superonasal quadrant of the orbit and extends posteriorly through the medial part of the superior orbital fissure into the cavernous sinus. The eye is made up of three coats or layers enclosing various anatomical structures.

Click to see full answer. Some aspects related to vascular regulation and innervation are also discussed along with outstanding questions that remain a matter of debate. Choroid ciliary body iris Nervous inner.

Provides the main venous drainage of the orbit. In front of the lens is the iris which regulates the amount of light entering into the eyeThe lens is suspended in place by the suspensory ligament of the lens a ring of fibrous tissue that attaches to the lens at its equator and connects it to the ciliary body. Four major circulatory systems within the eye are considered namely those nourishing the retina the optic nerve head the choroid and the anterior segment.

The iris which is connected to the anterior part of the ciliary body covers the top of the lens. Click to see full answer. Sclera cornea Vascular middle.

The structure of the eye is an important topic to understand as it one of the important sensory organs in the human body. Anatomy parts and structure. The eyeball consists of three layers.

The whale eye receives its primary blood supply from the ophthalmic rete which extends just behind the eyeball. Structure of Human Eye. These remarkable features of our eye are enabled by the complex structure of the eyeball.

The vascular coat of the eye 1. The middle vascular coat choroid ciliary body iris. All these vessels arise from theoph-thalmic artery.

The ophthalmic rete diverges from the basilar rete and the cervical rete via the posterior thoracic artery. Oculus is a paired sensory organ which is responsible for the sense of sightAnatomically each eye consists of an eyeball and accessory structures of the eye. The sclera covers most of the eyeball whereas the cornea covers a small part of the front of the eye.

In this article we will discuss about the structure of human eye. Human eye is spherical about 25 cm in diameter. It lies in a bony cavity within the facial skeleton known as the bony orbit.

The wall of the eyeball consists of three layers surrounding the vitreous body. The average human eye can see around 100 different shades of color and has a resolution that equals 576 gigapixels. Four major circulatory systems within the eye are considered namely those nourishing the retina the optic nerve head the choroid and the anterior segment.

Its wall is composed of three coats. Some aspects related to vascular. These images are a random sampling from a Bing search on the term Vascular Anatomy of the Eye Click on the image or right click to open the source website in a new browser window.

Fibrous layer - the outer layer vascular layer - the middle layer retina - the inner layer of the eyeball. The sclera is relatively avascular whereas the cornea is completely avascular as it relies on nutrient supply from nearby capillary beds in its periphery lacrimal fluid and aqueous humour. Gross Anatomy Almost the entire blood supplyof the eye comes from the choroidal vessels which originate from the ophthalmic.

Secretion of growth factors such as vascular endothelial growth factor VEGF and fibroblast growth factor 9 FGF-9 are critical for the physiological development and differentiation of the choroidal vascular network. The central retinal artery branches off of the ophthalmic artery and enters the back of the eye. The outer fibrous coat sclera cornea.

The retina consists of densely-packed nerve cells which are light-sensitive and is the basis of human sight. The outermost layer known as the fibrous tunic is composed of the cornea and sclera which provide shape to the eye and support the deeper structuresThe middle layer known as the vascular tunic or uvea consists of the choroid ciliary body pigmented epithelium and iris. The lens is part of the anterior segment of the human eye.

THEVASCULAR COAT OFTHE EYE ANIS SUZANNA BINTI MOHAMAD OPTOMETRIST 2. WALL OFTHE EYE Fibrous outer. It is situated on an orbit of skull and is supplied by optic nerve.

The eyeball is a bilateral and spherical organ which houses the structures responsible for vision. The ophthalmic artery is the primary source of blood flow to the eye. The iris and ciliary processes are supplied by iridic arteries via the major arterial.

Posterior to the lens is the vitreous body which along. The CRA is the major source of blood flow to the retina. The eye is a hollow spherical structure measuring about 25 cm in diameter.

The ciliary arteries and the central retinalartery.

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