Need a mild moisturizing eye drop. One?

Hello doctors I have gone through series I problem with started with conjunctivitis and later turned to sports on cornea which lasted for almost four years which did not get cured even after long ayurvedic and allopathic treatment. Somehow I happen to use Eyetone drops which game II fantastic result including complete recovery from the problem and now there is no recurrence from last 4 years other than a mild dryness. For this I was using an ayurvedic crops from sreedhareeyam Eye care, Anthony due to the log town currently I am unable to get that drops. even tho I don't feel any  inconveniences or problems I would like to keep a mild moisturising drop with me could you please suggest one? Thanks in advance