Thanks for the kind words.
Yes, it is possible to not use Restasis during the recovery period after Lasik and have a fine outcome. In fact that is probably the majority of people.
If the cause of the dry eye is all related to the surgery (Lasik induced temporary dry eyes), then healing should resolve the cause. If dry eyes is a natural state, then healing can only put you back to the natural state of dry eyes.
Restasis is the only medication that is approved to treat the underlying cause of dry eyes. Artificial tears are treating the symptom, not the cause. If you have underlying dry eyes or if after surgery you find that dry eyes is a continuing problem, then Restasis may be appropriate.
The theory that consistent use of diluted cyclosporine in Restasis may somehow affect your immune system is not supported by any scientific evidence.
In all cases, the diagnosis of dry eyes and a recommendation how best to treat them can only be made by a competent doctor after a comprehensive examination. The best I can do here is an educated guess.