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What causes excessive blinking of eyes? - Dr. Samina F Zamindar
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The commonest cause of excessive blinking of the eyes is dryness in the eyes. This is the way in which the eyes are telling you that they are thirsty. They need some more tears because with every blink, a new consignment of tears flows into your eyes and it nourishes the cornea. Why does the cornea needs nourishment by tears? Yes, it does need nourishment only by tears because the cornea does not have any blood supply. Well my friends, didn’t you always think that only when you cry, tears roll down? No. There is always a layer of tears in the eye which nourishes the cornea and whatever reason it might be, which causes a depletion of tear film, your eyes need to blink again and again to see that your cornea gets nourished, because the cornea of the eye is the most important structure of the eye and a very important role it plays to give you clear vision. This being said, I would like to now say that there are other causes also of recurrent blinking of the eyes, for example, any allergy of the eyes or any irritant entering into your eyes because this is the only way in which the eye can get that out. So many times in my practice, I see children who come with the complaint that they are blinking very often. Parents get really worried. After I have done a complete thorough check up of their eyes, and I don’t find any reason for their excessive blinking, then the most commonest reason would be an attention seeking behavior. This child is feeling neglected. And he or she wants the attention of their parent. Well, then we are talking about a deep psychological problem for which a counselor as to be enrolled. Some children who have a refractive error, that means they need to wear spectacles to see clearly, they come to us with a complaint of excessive blinking. So when we examine them, we find out that they might need to wear a glass and soon as we give them the correct refractive correction, in the form of spectacles, the blinking disappears.
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