It is a really simple surgery. I've had both done. However, the important thing to realize is that when you get your new lens (at least at the time I got my implants a couple years back), you can't change the focal length without the help of glasses. Long range I see a lot better, but now I need reading glasses. Also, no self respecting ophthalmologist would remove your natural lens for no reason. When I had my cataract surgery in my left eye, three days later my retina tore and detached. Granted, I'm prone to that sort of thing, and if the cataract wasn't so thick from delaying the surgery it shouldn't have happened, but it's still a possibility.