How cataract surgery is carried out


This animation will show how surgery is used
to correct a cataract. This operation is called phacoemulsification
cataract surgery. Click the navigation arrows below the animation
screen to play, pause, rewind or fast-forward the animation.
This animation contains sound. Here we show the different parts of the eye.
A contract is caused by changes in the lens protein of your eye.
It usually develops over a long period of time.
Most often a cataract is due to the aging process.
Once your ophthalmic surgeon has examined you, drops will be placed in you eye to dilate
(widen) your pupil. This makes it easier for the surgeon to see
the lens of your eye. Local anesthetic drops will be placed in your
eye. This will completely numb your eye.
Sometimes a local anesthetic injection is used instead of drops.
A tiny cut is made on the surface of your eye.
The cut or opening is usually so small that no stitches are needed after the operation.
An ultrasound tool is used to break up the lens.
The lens sits in a thin sac of tissue called a lens capsule.
The broken up pieces of lens are removed from the lens capsule through a small tube.
An artificial lens (intraocular lens) is inserted through the cut into the lens capsule.
The lens is folded so that it can pass easily through the tiny opening.
Once inserted, the artificial lens unfolds itself and replaces the old lens.
Your eye will be covered with a dressing to protect it.
You will need to wear the dressing over your eye for a few hours after your operation.
This is the end of the animation. Click on the animation screen to watch it
again.

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