There are many causes of dry eye syndrome. Lemon juice is widely used to cure acne problem. The eye pressures were greatly elevated in both eyes. Issues such as lupus, thyroid disorders or rheumatoid arthritis also cause lack of tears. http://Selectinterest.com/__media__/js/netsoltrademark.php?d=Www.Opticaljournal.com%2Fsleep-apnea-and-dry-eye-syndrome%2F