Was told to put one drop in each eye at night. (Optometrist) My vision has become blurry. I just started the other day seeing black half circle in one eye. I have started going to counseling as usually a happy person have become quite depressed. The depression happened well before this new vision impairment, which started two days ago. I am overly anxious and lethargic not wanting to do my normal daily routine. My sleeping is erratic. Recently having trouble driving at night. I tossed it in the trash just now after reading possible side effects. For about six days now I’ve been taking vitamins for eye health. Once I stop using, is this damage now a part of my life or can it be rectified with ceasing its use. I feel so stupid not looking at the side effects first!