Hello
@Teen2 and welcome
🙂
Sorry to hear you're having problems with CKD and retinopathy, is OFF the same as a GFR percent for CKD? I've not heard that term before. The ophthamologist will discuss the best treatment and way forward for you.
I can hopefully help on the laser front. You have dilation drops put in the eye/s that are to be lasered and wait until you're called into the laser room, numbing anaesthetic drops are then put in the eye/s. You sit at a table like a slit lamp table and a contact lens is put on to your eye, due to the anaesthetic drops you just feel slight pressure. Your head is usually held in position so that the laser can be aimed very specifically at the affected areas and you'll then see a rapid sucession of usually red flashes coming at you. It shouldn't be painful it can feel prickly and slightly uncomfortable but not too much. You can only have a certain number of laser burns put on your retina at any one time as it can cause inflammation and the eye needs time to settle between treatments. Don't be surprised if you have to have more than one laser session.
Your eye/s will be blurry from the drops and also very light sensitive after the laser- take sunglases whatever the weather forecast!
This site is very useful for explaining all things retinopathy/maculopathy, injections
http://www.diabeticretinopathy.org.uk/laserdiabetic_retinopathy.html
Best Wishes I hope all goes well for you.