Environmental factors such as dust, smoke and wind can cause dry eyes. Air conditioning systems may lead to discomfort. Certain tasks such as working on PCs can significantly reduce blinking. Dry eye increases with age, consult your eye care professional for simple treatments for eyelid related conditions like blepharitis. Regular examinations are also important to detect any allergy. Although dry eye drops may alleviate allergy symptoms, you made need specific anti-allergy drops. If your contact lenses feel increasingly uncomfortable through the course of the day, then you may benefit from upgrading to the latest generation of contact lens materials that retain the moisture in your eyes. Finally, be sure to tell your practitioner if you have had laser treatment, such as LASIK, as these can also induce dry eye.