why do we have to dilate the pupils before cataract operation?

Answer 1

To get to the optic nerve in the back of the eye.

Answer 2

I'm not a physician but am an ex cataract surgical rep. The reason the pupil is dialated prior to the procedure is to faciliatate a better view of the cataract and to allow it to be more easily removed from the eye. Dialating the pupil is standard procedure for all cataract surgeries.

During the actual removal of the cataract a physician inserts a tiny needle that emits sound waves at a very high frequency. These sound waves break up the cataract which is then removed through the tip of the needle.

Once the cataract has been removed, an implantable silicone lens will be inserted in its place and will allow light to focus on the retina. This will restore your vision.

From about 3 months out from the surgery or later, you could begin to notice a haziness in your vision. This is not the formation of a new cataract. A simple procedure known as a Yag procedure will clear this right up. It's painless, does not require anesthesia or anything and can be performed in less than 5 minutes. Whether or not you have to have this procedure done is dependent upon a lot of things but it should be your last step in restoring your vision.

Answer 3

Cataracts are spots on the lens of the eye. To get to the lens you must dilate the pupils to get to the cataracts to fix them.

Answer 4

Pupils are frequently dilated on the day before cataract surgery and for retinal detachment surgery so the fundus can be examined.

Answer 5

The lens sit right behind the pupil. You have to be able to get to it.

Answer 6

it gives doctors more room to work in a small place like eye. so makes it easy for the opaque lense to come out without damaging other structures and also easy to put new prosthetic lense in eye.
cheers