Is it a disease that can be prevented by cataract prevention?

There are many elderly people who have undergone cataract surgery.

Is it correct to think that joint pain, thickening of finger joints, and similar issues are caused by aging and are like age-related diseases?

Above all, I want to know the prevention methods if aging is not the 100% cause.

Like exercise methods or dietary supplements or something like that.

I think prevention in advance is the best way.

And if I have surgery, will I be able to return to daily life immediately?