I'm currently having treatment. 3rd session of laser was done on Friday and they will contact me in 4 weeks. During the first 2 treatments my floaters were really bad. Strong black wishy ink in my vision and even though it healed my vision remained blurred.
I have visual snow also which is when I look at the sky or light colours I see pixel or tiny dots. Also everything seems darker like I need more light in a room otherwise it feels like I've lost 30% or so of normal lighter vision.
It depends but alao note that scarring can also affect your vision. They said the best way to prevent further damage and even slightly improve your vision is blood glucose control. If you're having treatment and your bloods are constantly high or you're having hypos often then it's going to damage the blood vessels in your eyes.
I would also recommend getting your kidneys checked out. Since the blood vessels in your eyes are the same size as the ones in your kidney and can sometimes be a early warning system. In my case my kidneys were fine.
Also smoking and drinking alcohol can cause damage ti the blood vessels in your eyes.
My advice is to keep your blood levels in target, keep getting treatment, stop smoking(if you are) and don't plaster your self with alcohol.
My vision hasn't improved since the first treatment back in july but.. . My floaters are less now and I haven't peaked over 13.0 reading for blood glucose for 2 weeks.
They also recommended an injection to help clear the vision but I'm slightly off the levels for it. Then obviously last option if it gets really bad is a operation.
Goodluck though =).