Oasis TEARS is the only preservative-free, lubricating eye drop with a special substance that combines with the active ingredient, glycerin, to keep tears on the eye surface for a long time. This unique combination lubricates and moisturizes the surface of the eye for instant comfort. With each blink of the eye, it re-lubricates to provide long-lasting relief.

When your natural tears are unable to provide enough moisture or lubrication to your eyes, artificial tears can help. However, not all artificial tears are the same. They can have different active ingredients, preservatives, and packaging. For example, they can be in the form of liquid, gels, ointments, or sprays.

What are preservatives?

Preservatives are chemicals that are sometimes used to prevent contamination or decomposition of a medicine or liquid. When an eye drop medicine is exposed to oxygen or a nonsterile surface it becomes at risk for contamination or decomposition. Some artificial tears contain preservatives to prevent this. Certain preservatives, such as benzalkonium chloride (BAK) and disodium EDTA, can harm the surface of your eyes. Using more than 4 to 6 drops a day of artificial tears containing BAK increases the likelihood of side effects caused by BAK.

Some tear substitutes contain preservatives that can damage the surface of your eye, such as BAK. This damage prevents the artificial tears from keeping the tear film in place, and can harm the surface of your eye. If you are using certain medication drops or wear contact lenses, it is even more important to have tears that are preservative free to keep your eyes healthy.

Are all preservatives the same?

No. There are many different types of preservatives and some are safer than others.

Benefits of preservative-free tears

There are artificial tear products that do not use preservatives and are packaged in single-use containers. Products such as Oasis TEARS and Oasis TEARS PLUS remain sterile and unexposed to oxygen. Studies have shown that preservative-free eye drops are safe to use in patients, even when frequently used.

It can be purchased at the store or our web store. It offers a money back guarantee that if it doesn't work for you they will refund your money! http://store.theeyebar.net/Oasis+Tears+Plus.html

You can also read more info on the product here http://oasistears.com