The eyedrops I have switched to are white, it's like putting Tipex in your eyes and makes me think of the characters in Jose Saramago's novel Blindness, who suffer a contagious loss of sight where everything suddenly turns white. My friend told me of the book, recently, saying, Don't you dare even glimpse this just now, so I ordered it from the library. The writing is fabulous though it's more about an imbalance of power and society breaking down than anything else. I am a third of the way through. I have still not finished any of the last three books I have been reading.