Well now I can see well enough to respond to this thread......"Seeing computer & typing is difficult for me"
I've been getting "shots" since 2017,,,,,at first in one eye....and finally in both eye.
As a newbie back then I didn't know what the Retina doc was injecting.....
As time went on I found that he was using Avastin but had switch to Eylea (sp?).  
But after a while he switched back to Avastin as the eyes were "stable"  ...every six weeks.....
Today, one eye is worse and he is switch me back to Eylea in 4 weeks.
The Avastin is billed at $200/shot.....but the Eylea is $2000 per shot....each eye.  My medicare and other insurance pays for it along with all the testing.....
The goal is to keep me from going blind but not a cure.  I can still drive in the day time on local roads.  My central vision is gone which makes all kind of chores difficult....e.g. seeing and holding my grease gun on a zerk that I can hardly see or notice if the grease is goin in where it belongs.  My Kubota MMM/lifts have about 15 zerks....some really hard to even reach...........
But at 91+ YO I shouldn't complain.   I was 89 before they did the cataract surgery first time.
Cheers,
Mike