My eye doctor recommended Refresh Tears Lubricant Eye Drops after I was having dry, red, bloodshot eyes. He gave me a sample of Refresh Tears and after I used them up, I bought a bottle. When I applied the drops to my eyes, they were very soothing. They didn't burn or sting, like some brands. The bottle is a good size and seems to last a long time. The directions say to use 1 or 2 drops in the affected eye(s). I started out using them several times a day. It took away the redness and instantly made my dry, irritated eyes start to feel better. Once my eyes healed, I still use them occasionally when they start to feel dry. They help me with dry eyes from allergies, blowing fans, or dry winter air. I find it very soothing to use right before bed, too. I wear soft contacts and my eye doctor said I can use Refresh Tears with them in my eyes. I haven't had any problems with my contacts or my eyes doing this. I use them both with and without my contacts in.