What are cataracts?
Cataracts are areas that develop in the clear lens inside your eyes, stopping light from reaching the back of the eye, and causing blurred or misty vision. They are not painful.
What are the symptoms of cataracts?
- Blurred, misty or cloudy vision
- Difficulty seeing in dim or low light
- Colours look faded or more like sepia
- Double vision
- Seeing haloes (circles of light) around bright lights, or finding lights too ‘dazzling’ to look at
- You feel like the lenses in your glasses are dirty or greasy, even when they are clean
Cataracts can develop very slowly and may not be noticeable for some time. They often develop in both eyes, although not necessarily at the same time or in the same way.
What causes cataracts?
Unfortunately, most cataracts simply develop as we age, although you can reduce your risk by eating a healthy diet and not smoking or drinking alcohol. If you have been exposed to frequent strong UV light, have taken steroid medication over a long period of time, or have had untreated diabetes you may also be at higher risk.
Can you tell me if I have cataracts?
We always check for the signs of cataracts during an eye examination. When we look inside your eyes to check their overall health, we look through the lens inside your eye. In doing so, any cataract or cloudiness will be visible to your optometrist. Other tests will also indicate the presence of cataract, in particular a noticeable drop in visual acuity (the size of the letters you can see on the chart) Most of the time, the vision can be improved by an alteration to the type of correction you have. Where this is not possible, we can discuss referral to an ophthalmologist for more tests and treatment.
Unfortunately, because there are no drops or medicines that improve cataracts, and your vision will deteriorate slowly over time, the only effective treatment is surgery.
What happens during cataract surgery?
Cataract surgery is the most common surgery in the UK and has an extremely high success rate. It is a quick and simple procedure which is carried out under local anaesthetic as a day patient, so you will be able to communicate with your surgeon during the operation.
The surgeon will make a tiny incision in your eye to remove the cloudy lens and replace it with a new, clear artificial lens. You will not normally need stitches, but your eye will be covered to protect it.
If you have cataracts in both eyes, you’ll need two separate operations, usually carried out 6 to 12 weeks apart to give the first eye time to heal.
So, will I need new glasses after my cataract operation?
After cataract surgery most people will still need to wear glasses for certain tasks, although the prescription will be very different from before the operation, and the vision should be markedly better. You will need an eye examination about a month after surgery once your vision has settled down.
If you’re at all concerned about cataracts contact us today.