Supervised by: Dr Amal Abo El-Monsef. By the end of this lecture, the student will be able to: 1. List the composition of the eye ball 2. Mention the.

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Presentation transcript:

Supervised by: Dr Amal Abo El-Monsef

By the end of this lecture, the student will be able to: 1. List the composition of the eye ball 2. Mention the function of the cornea

- The eye ball is the organ of vision Coats of the eye ball: They are: 1- The fibrous coat: it is the outer layer. It is formed made of: Sclera:Sclera: forms the posterior part of the fibrous coat. It is opaque. It is directly continuous anteriorly with the cornea. The cornea:The cornea: it is transparent. It is in contact with the aqueous humor. It is devoid of blood vessel. -Function of the cornea: Refraction of light.

2- Vascular coat: it is consists of: Iris:Iris: it is the pigmented part of the eye ball. It has a central opening called the pupil. Ciliary bodyCiliary body choroidchoroid 3- Nervous coat: it is formed by the retina. It is sensitive. The optic nerve is attached to retina.

Aqueous humor: Aqueous humor: it is a clear fluid. It fills the space anterior to the lens. It supplies the avascular cornea & lens with nutrients. Lens: Lens: it is transparent. It lies between the iris anteriorly & the vitreous body posteriorly. Viteous body: Viteous body: fills the eye ball behind the lens. It is a transparent gel.

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Gray's Anatomy for student (2004 recent ed) Snell's Clinical anatomy (7 th ed) Last's Anatomy, Regional and applied (10 th ed)

The students are requested to draw a cross section of the eye ball بسنت اشرف محمد احمد شكري بسنت حسن علي محمد احمد تغريد محمود ابراهيم مصطفى حسام الدين حسين محمد حسين مبروك حسام حسين منصور عبد السميع حماده محمد عشري عبد الحميد نصر Opened discussion session.