Sometimes dryness can be caused by poor quality tears. The tear film is made up of 3 layers, lipid layer, water layer and the mucin layer. The top layer, which is the lipid or fat layer, becomes less stable with age. This means the underlying water later is exposed more, and therefore evaporates more. If the tears evaporate too quickly from the surface of your eyes, you need to blink more in order to keep the eyes moist. The body would then over compensate for this by producing more tears, which would end up spilling over.

Improving your diet by consuming more healthy fats helps improve the quality of your tears, resulting in less evaporation. Dry eye tablets, ointments and drops also help control the symptoms and reduce the watering.

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