Does vision still get worse with age even after cataract surgery?

If you do not have any other eye diseases, the vision often remains clear after cataract surgery for the rest of your life. 

 

Most age related change in vision is due to the lens of the eye.  Cataract surgery replaces the lens inside the eye, so there is not further reason for your vision to deteriorate with time.

Unless you have some other eye illness or pathology like macular degeneration or glaucoma, your vision after cataract surgery should remain every good.  
Sometimes the lens implants develop some scar tissue membranes on them and need to get zapped away with a quick and painless laser procedure but this is quite common and most ophthalmologists are quite skilled at treating it.

The vision should be great or even better and perhaps with less glasses dependence after surgery.
Ask you doctor if you have any other eye condition which may diminish vision later. Macular Degeneration is perhaps the most common condition that would do so.

Most of the vision loss that occurs with age is due to some form of degeneration or disease state and not due to age itself.  If the eye remains healthy following cataract surgery, the vision will generally remain relatively stable.  Age by itself causes only a relatively minor amount of vision loss and there are certainly people in their 90's or even 100's who can still see 20/20.

 

Having said that, the risk of developing some form of degeneration increases with increasing age.  Glaucoma, Macular Degeneration, and other eye diseases are much more common in older people.  It is therefore important to have your eyes examined regularly even when you are seeing well.

After cataract surgery, your vision should remain stable unless there is a health problem in the eye. In the absence of eye disease the eye should be capable of very good vision when the cataract is removed.