Sounds like Wet Maculer degeneration. I wouldn't like to have an injection in the eye, although, it probably isn't any worse than having stitches removed without anesthetic (after corneal graft). The trick though is to relax, in my experience worrying about things and becoming anxious increases pain sensitivity and just make the experience worse.
I've not had that procedure, i've only had cyclodiode laser (twice), and need another round though i've been putting it off for various reasons. I've had cateract surgery too, although i was too young to remember it (congenital cateracts).
