I have worn contact lenses since I was 15, I had been in glasses since the 5th grade before that. After saving all the money I could my parents agreed to let me try some. I was thrilled! I have worn contacts for many years now and this product, the AMO Complete Blink-N-Clean lens drops is th best ever! I can now wear my contacts for longer periods of times now, and if I ever get dust or dirt in my eyes I just drop a few drop's in each and and blink a few times and I feel good as new. I do not know what took so long for someone to come up with a product like this but I am grateful they finally did! Now do not worry, because at first when you put the drops in the drops are a little thicker than you might expect and it does not burn but it does tingle just a bit. I have found this to be very effective and has saved me the hassle of removing my lenses constantly, but keep in mind this does not take the place of normal cleaning you need to do to your lenses.