Note: did the surgery at "Associated Retinal Consultants." I can't read this without getting too emotional, and am not sure if this is considered a totally new thing or if we just missed out on this possibility then.
I got cataract surgery in one eye a few years ago. I am much younger than the average patient. It's not as good as what you have naturally when you are young but it sure beats what you have with a cataract. In my case, the floater did become mostly unnoticeable within a year. It didn't really impede my daily life before that.
But as someone who had cataract surgery as a newborn, please don't fret about it too much. I don't know how old your son is or when his surgery was, but bilateral aphakia is something that has become more of an inconvenience than anything else. It certainly shouldn't limit his options in life. (Unless his heart is set on joining the military, like I was. But, as they say, I really dodged a bullet there.)