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Stye and Chalezion

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what is the difference :  STYE and CHALEZION  Stye (external hordeolum) is an acute suppurative inflammation of gland of Zeis or Moll. Chalezion (internal hordeolum/meibomian cyst) is a chronic non infective granulomatous inflamation of the meibomian gland. STYE: Causes Of Stye: Habitual rubbing of the eyes/lids Common Chronic blepharitic patients Most recurrent among patients with diabetes mellitus High alcohol intake increases the risk of Stye onset Symptoms of Stye : Acute eyelids pain Swelling of the lids Mild watering (tearing) Localized hard,red tender lid margins(cellulitis ) Ocular Discomfort with light (photophobia ) Abscess formation with visible pus beneath eyelid hair follicles Treatment of Stye: 1.Hot compresses 2-3 times a day are very useful in cellulitis stage. Note: when pus point is formed it may be evacuated by epilating (removing ) the involved hair surgery is rarely performed for Stye. 2.Antebiotic eye drops(doxicyclin/ciprofloxacin) 3-4

DRY EYE

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What is DRY EYE? Dry eye is a condition in which a person does not have enough quality tears to lubricate and nourish the eye.Tears are necessary to maintain clarity of the cornea and nourishes the front surface of the eye to ensure clear vision. Any anormaly in the integrity of the eyes tear film,the production or drainage can result in dry eye.This condition is often chronic and mostly affects the older adults. The  lower and the upper eyelids mechanically spread over the ocular surface through neuronally controlled blinking mechanism to wet the corner and other ocular surfaces and exits through the nasolacrimal drainage system.then into the nose. Tears provide lubrication,nourish ocular surface to reduce the risk of infections,wash away foreign substances that accidentally fall on the eye,keeps ocular surface smooth to allow clear vision. What is the differences between dry eye and dry eye syndrome (keratoconjunctivitis sicca ) dry eye is the general condition in w