Artificial tears can provide relief from dry eye symptoms, what to consider when choosing eye drops used to treat dry eye? Artificial tears are eye drops that are used to lubricate dry eyes and also help maintain the moisture in the outer layer of the eye. These drops can be used to treat dry eyes caused by aging, certain medications, illnesses, eye surgery, or environmental factors such as smog or windy weather. Artificial tears can be purchased without a prescription, but there is no single type of artificial tear that will work for all types of dry eyes, and patients may need to try a number of different brands to find the best fit. It is best to avoid eye drops that are used to reduce redness in the eyes, as prolonged use of such drops may cause eye irritation. In addition to lubricating the eyes, some artificial tears contain electrolytes. They can group to promote healing on the surface of the eye, and artificial tears may contain thickening agents that can prolong the time it stays on the surface of the eye. There are two types of artificial tears 1. Artificial tears containing preservatives: These artificial tears are usually packaged in multiple doses and contain preservatives that inhibit bacterial growth when the bottle is opened. Preservatives can irritate the eyes, especially if you have mild to moderate dry eye. Preservative-free eye drops. These artificial tears contain fewer additives and are better suited for patients who use eye drops more than 4 times/day or who have moderate to severe dry eye. Preservative-free eye drops are usually packaged in single-dose packages. 2. There are also over-the-counter gel or colloidal dosage forms of artificial tears: If symptoms are not relieved after trying a variety of products, the next step may be to try one or more artificial tear eye ointments. Eye ointments may cause blurred vision, so it’s best to use them at bedtime. If symptoms are not relieved after trying the above, schedule a visit with an ophthalmologist (eye doctor or optometrist) who will give you other treatments.