The risk of serious complications developing as a result of cataract surgery is very low. Most common complications are treatable and don't have a long-term impact on your vision.
The risk of complications is higher in people with other eye conditions, such as Uveitis , severe short-sightedness (high myopia) or diabetic retinopathy .
The risk of complications is also higher if you can't lie flat easily, have problems breathing, or are taking tablets for prostate problems.
Ask your eye surgeon (ophthalmologist) to explain the possible risks beforethe operation.
The main problem that can occur after cataract surgery is a condition called posterior capsule opacification (PCO).
This is where part of the lens capsule the "pocket" the lens sits inside thickens, which can cause cloudy vision. This isn't the cataract returning, but a skin or membrane growing over the back of the artificial lens.
Less than 10% of people who have cataract surgery will eventually develop PCO, usually within two years.
If you develop PCO and your vision is affected, you may need laser eye surgeryto correct it. During this procedure, the cloudy part of the lens capsule will be removed, leaving enough of the capsule to hold the artificial lens in place.
Laser eye surgery for PCO is a short and relatively simple procedure that usually takes about 15 minutes.
Your vision should either be improved immediately or within a few days and, as no surgical incisions or stitches are necessary, you should be able to return to your normal activities straight away.
Other complications of cataract surgery are much less common, but can include those listed below.
During the operation:
After the operation:
You should seek immediate medical advice if you experience any loss of vision or increasing pain or redness after cataract surgery.
It's usually possible to successfully treat complications that arise from cataract surgery with medication or further surgery.
Rarely, your vision may be worse than it was before surgery. There's also a very small risk around1 in 1,000of permanent damage to your eye, causing a loss of sight.
However, the majority of people have a good result from surgery and are happy with the improvement in their vision.
Read about cataract surgery, a procedure to treat cataracts, where changes in the lens of the eye cause cloudy, blurry, or misty vision.
Find out when cataract surgery is offered on the NHS. It's usually recommended if cataracts are affecting your ability to carry out daily activities, such as reading and driving.
Find out what happens before, during and after cataract surgery.
Read about recovering after cataract surgery, including advice about when you can drive and return to everyday activities.
Read about the possible complications of cataract surgery. The main problem that can occur is a condition called posterior opacification (PCO).
Brenda Alworth had two cataract operations, with the second four years after the first.