Do I need a cataract operation?
Whenever a cloudy human lens (or cataract) interferes with vision, an operation to remove the cloudy lens and replace it with an artificial lens (intraocular lens or IOL) will improve vision. The decision as to whether to have the operation depends on the severity of your symptoms and whether or not you feel that the small risks involved in surgery are worth taking to get better vision.
If you decide not to go ahead with cataract surgery, your vision will continue to get worse. However, not having cataract surgery done now does not prevent you having it later. There are a few conditions in which surgery is better to be done sooner rather than postponed. I can advise you if this applies to you once I have examined your eyes.