Phlyctenule
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A phlyctenule is medical term for a small whitish bump or blister found on eye. It is to one or more discreet spots on the eye, has visible small blood vessels. It is a collection of white blood cells (primarily polymorphonuclear leukocytes and lymphocytes) in response to staphylococcus or other bacteria. In underdeveloped regions Tuberculosis is the most common cause.
The condition may improve with proper hygiene. Medical treatment may consist of the use of artificial tears eye drops, vasoconstrictors (such as Tetrahydrozoline), or corticosteroid eyedrops.
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