Eye bags surgery and cornea ulcer

I had cornea ulcer many year ago . Although my eyes are healed I felt they are way more sensitive than before when I wear contacts and I have developed more vein in the eyes. I have been interested in getting a lower bleph for a while and my biggest concern is that might impact my vision . For people who had cornea ulcer, can they still do a lower blep? Does it increase risk of any thing ?My understanding is our eye can feel stressed after a lower bleph and I worry my eyes can take it