Anatomy of the Eye

THE ANATOMY OF THE EYE

Introduction

The eyes are undoubtedly the most sensitive and delicate organs we possess, and perhaps the most amazing. They present us with the window through which we view the world, and are responsible for four fifths of all the information our brain receives – which is probably why we rely on our eyesight more than any other senses.

Discussion:

Anatomy of the Eye

view link:

 http://www.youtube.com/watch?v=1YsnDquYurc

http://www.allaboutvision.com/resources/anatomy.htm

cornea aqueous   humor

iris lens retina

macula choroid sclera optic nerve

Common Eye Problems:

Myopia (short sight) and Hypermetropia (long sight) are common conditions and are both caused by the cornea and lens not focusing properly on the retina.

Short sight is where the eyeball is elongated or the lens is too thick, causing the image to focus in front of the retina.

There are other sight-threatening conditions that are not so easily corrected or overcome. Cataract, trachoma, glaucoma and river blindness , for example, will cause complete blindness if left untreated. Sightsaver is preventing and curing these diseases and restoring sight where possible.

Causes of Blindness

When you think about it, the very act of actually seeing the world around us is an astonishing thing. It relies on the interaction between the brain and the eyeball, two extraordinarily complex organs, so it’s hardly surprising that there are so many ways in which we can suffer sight loss or reduction.

View link:

http://www.sightsavers.org/learn_more/causes_of_blindness/default.html?gclid=C

http://www.youtube.com/watch?v=xgLl2bmSi9s

Evaluation:

                            Enumarate the Anatomy of the eye

                            Enumarate the common problems of the eye