“Is a cataract serious?”

A cataract occurs when the lens of the eye becomes cloudy due to age, medications, or health problems like diabetes, Cataracts will occur to everyone at some point in their life. It can be serious if your vision is affected to the point that you are not safe to drive or an accident occurs because you did not see something that you should have. Cataract surgery can result in your seeing better when the cataract is removed and replaced with a clear implant. If you were diagnosed this by an eye doctor, have any and all questions that you are concerned about directed to them so that you can make an informed and educated decision as to what to do and when to do it.
Cataract surgery is usually risk-free but never risk-proof. Factors that need to be considered are your age, health status, medications being used, and current visual status of your eyes. Good luck and best wishes.

Depends on staging of cataract and is it affecting quality of life

The primary problem with cataracts is associated visual impairment. When they impair your ability to function or enjoyment of life cataract surgery is usually advised. The success rate for restoration is very high.