The manufacturer states that Restasis does not reach full effectiveness unit after about 90 days of continued use. Restasis is an anti-inflammatory. Inflammation around the tiny channels that carry the fluids that comprise tears can restrict flow. Restasis can increase fluid flow by reducing the inflammation. Restasis will only be a viable treatment if the dry eye is caused by channels restricted by inflammation.
"Dry eye" does not necessarily mean the eyes are dry. It is necessary to determine if the quantity of the tears is adequate and if the quality of the tear is appropriate to keep the eyes moist. It is possible that both quantity and quality are okay, but the patient feels dry eye symptoms. This can occur if the nerves that provide this feeling are disrupted during Lasik. Dry eye treatment
will only be viable if the symptoms are actually caused by a fluid deficiency.
It is more common to experience dry eye toward the end of the day after the eyes have been exposed for many hours. Dry eyes only in the morning may indicate that the eye lids are not fully closed during sleep. Some individuals with this problem have taken to wearing small swimming goggles that fit tightly around each eye socket. This traps moisture and keeps out the dry air. A humidifier in the room may also provide relief.
Remember that air conditioning is a dehumidifier and a humidifier may be necessary just to bring the environment to normal.
Be certain that you use only artificial tears that are 100% preservative-free. The preservatives in artificial tears are a mild toxin that is normally benign, but extended and frequent use can cause the very irritation you are trying to avoid.