I am using Patanjali Drishti Eye Drops deaily. Care for my Eyes problem, I had use and follow the same for about 1 or 2 months, this helped and effective but there is permanent relief in my problem. As Patanjali products or Divya Drishti Eye Drop is an Ayurvedic Proprietary Medicine. Its a very useful. All contents and medicine are natural herbal extracts with no impurities. Patanjali Drishti Eye Drop is successful in general eye problems like mine.