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Dry eyes can occur from involvement of any of the 3 layers of the tear film. The tear film has 3 layers- aqueous, lipid and mucin. The most frquent layer to be affected is the aqueous layer. It is seen due to increased evapouration of tears ,as can be seen with excessive hours in front of the laptop/computer/television or long hours of continous reading or writing. It can also be precipitated by excessive exposure to air conditioning or even very hot and humid climate. The treatment is in the form of tear supplements such as over the counter preservative free Refresh tears eye drops , 1 drop 4 times a day for about a month.
Usually there can be severe burning sensation in the eyes, redness of the eyes( or the corner of the eyes), reflex watering from the eyes, eye fatigue etc. These are all clubbed under the symptoms of computer vision syndrome( for those who spend long hours in front of the computer). Treatment is in the form of lubricating eye drops and preventive measures such as - take a few seconds break and take your glance away from the computer, keep the eyes closed so as to help the tear film to reform.
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