I am sharing my experience that patanjali drishti is very good and its keep eyes good.Drishti are very comfort to eyes.Before sometime I drived my bike when bike speed goes to 50 km then my eyes excuse tears and developed irratilibity in my eyes.After that my friend advice me to drishti eye drop and I use daily For 30days.And its result is better.And after that my eyes is very good.It is very good and ayurvadic.I recommende to your eyes that patanjali drishti is first.But it create small pain 5 to 10 sec.when you pouring in eyes.