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Vision Correction



The human eye is like a camera where the cornea (transparent front window of the eye) and the natural crystalline lens (the human natural lens inside the eye and behind the pupil) both act like the zooming lens in a camera. The cornea and the lens work together to focus the image on the retina (the very back layer inside the eye which act like the film in the camera). The retina converts the light-rays into messages that are sent through the optic nerve to the brain. The brain interprets these messages into the images we see.

Refractive errors occur when the shape of the eye prevents light from focusing directly on the retina. The length of the eyeball (longer or shorter), changes in the shape of the cornea or aging of the lens can cause refractive errors.

Types of refractive errors

The most common types of refractive errors are myopia, hyperopia, presbyopia and astigmatism.








Refractive Surgery

The most common method of correcting refractive errors is the use of eye glasses or contact lenses. The prescribed lenses will help to put the light rays (the image) on the retina. Over the last decade, a variety of surgical procedures collectively known as refractive surgery has become increasingly a popular method in correcting refractive errors. In most cases these procedures ultimately alter the shape of the cornea so light rays are refocused on the retina to give good version.

The most common effective surgical procedures are:






Phakic Intraocular Lenses  (IOLs): Implantable Contact Lens ICL, and Artisan Iris-Clip IOLs

Accommodative IOLs

Multifocal IOLs

Refractive Lens Exchange (RLE)

Each of these procedures offers different technique for refocusing light more accurately on the retina. For many people with refractive errors who are content to wear glasses or contact lenses there is no need to consider refractive surgery. However, millions of people have elected to have refractive surgery to reduce their dependence on glasses or contacts. If you are considering refractive surgery then we advise you to have full consultation with Mr Samer Hamada and have a complete eye exam to determine which procedure is appropriate for your particular eyes.