After three months, the glare from the sunset and also night lights have reduced. Also, I used to have a light blue ring around my iris, that has decreased significantly. The reason why it has taken me three months is that I wear contact lenses and it is hard for me to stop work each day, remove the lenses and sit still for ten minutes to let the drops sink in. The instructions say that I have to drop it in 8-9 times a day and I have only been doing it for 3-4 times a day, when I have a relief from work, or before bedtime and when I wake up. Also, the instructions say that when opening up a bottle, I would have to use it up within 30 days. Don't know if the efficacy decreases after 30 days or not. I haven't been back to the ophthalmologist , but I can definitely see better, during the day and especially at night. I believe that Ethos has saved me from an irreversible eye surgery that could range in the thousands of dollars.(The one star less is due to inconvenience of the contacts, or else it would be perfect!)