Artificial tears are OTC(over the counter) medications. They are often used as a supplement along with other treatments in moderate to severe forms of dry eyes.
Contains carboxymethyl cellulose, hydroxypropyl methylcellulose and hydroxypropyl cellulose along with water, salts and polymers except proteins found in natural tears. Ideally those who are using it frequently and for a long time should preferably use one without preservatives or the one with non-irritating preservatives.
Provides temporary relief
Very rare. Can include pain and irritation. But if it contains preservatives and used for a long time, then it can harm the eye.
1-2 drops into each eye every 3 hours.
In severe cases the frequency can be increased to 10-12 times/day.