I have frequent injections in my eye but a different drug and for a different reason. I'm prone to eye bleeds. So I get periodic shots of Avastin. It works to keep the eye quiet for a while. The procedure is the same for lucentis as it is for Avastin. You lie back. They wash all around the outside of your eye. They clamp it open (this, for me, is the worst part). They flush your eye thoroughly with washes and numbing drops etc. then the doctor says look way up into you head. Then he announces inject. The needle goes in and you can see an immediate flush into your eye of liquid.
I would say the injection takes two seconds and you're only in the chair for ten minutes. The majority of the time is spent prepping you. Then when it's over I get one dose of antibacterial ointment applied to my eye which I find soothing. I only have to apply ointment at bedtime the first night.
At first I was horrified about all this but I have probably had a dozen to 15 shots over the past three years. I have come to welcome them. They work and when you consider the alternative you feel grateful that such a sight saving procedure exists.
I have had blood in the white of my eye only twice and it was so far down under my lid that no one could even see it. It's fairly painless. I always feel like I have a speck of dust under my eyelid for the rest of the day. The next day I'm fine to do anything and glad that medicine is in there and that it works so well.
Best of luck with it. You will be fine.