Eye Conditions (A-Z)

How the Eye Works

Before considering laser eye surgery, it is helpful to understand how the eye works.

Our eyes may be small but they are one of the most impressive systems in the body. The human eye is made up of many important parts which all work together to give us a clear view of the world around us.

The front of the eye is made up of the cornea, pupil, iris and lens. Light enters through the cornea, pupil and iris, which can dilate and contract depending on the light intensity. It then passes through the lens which both refines and helps to focus the light into the retina. The retina is located at the back of the eye and here the light is absorbed. Photoreceptor nerve cells change the light rays into electrical impulses which are sent up to the brain via the optical nerve. It is here, where the image is interpreted. 

Eye Conditions (A-Z)

Everyone will notice a change in their vision at some point in time. In fact, some eye conditions are far more common than you might think.