I have been using these eyes drops from past last year. It has effected me a lot. My eye sight number decrease from -3.5 to -2.75. Though its painful while applying for the first time but after it feels actually very refreshing after.
Before consuming any kind of market product I recommend you all to consult to your physician, not all products suits everyone. I am using it twice a day. for me its very useful. due to onions it may hurt a bit but as we know onions are good for eyes.