Hi Anne, seven weeks on water! Did I read that right? You don't say how tall you are. I don't know if I already mentioned this, in the past maybe, but Mantak Chia has some good ideas for the eyes. One of them that is quite simple is to wash them daily with water to which you add 1 or two drops fresh lemon or lime juice. I've done this just a few times so far, and can tell it's something that is very good for them.
If it can get rid of cataracts (like water fasting, this takes more than a few days)then maybe it can do a lot for you.
-I suppose it might not be something you want to do while on water only...
Wishing you all the best, no obstacles and clear fasting!