Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best Drops for Dry Eyes

Murine Tears are my favorite lubricant eye drops, which I use every morning before putting on my contacts. My optometrist told me that our eyes are the driest when we wake up & at the end of the day, & that it isn't bad to use lubricant drops as often as I do. I was bummed when my local drugstore stopped carrying Murine Tears, and tried other brands which are more thick which I did not care for. I was so relieved/thankful when I found Murine Tears via Amazon. I also like that they supposedly are 'close to natural tears'. This product is great!