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DRY EYE SYNDROME 20200414_203310 (Pathophysiology (This mixture helps…
DRY EYE SYNDROME 
Pathophysiology
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Tears are a complex mixture of water, fatty oils and mucus
For some people, the cause of dry eyes is imbalance in the composition of their tears
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Eyelid problems,medications and environmental factors can also lead to dryeyes
Risk factors
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Undergoing radiation therapy,such as used to have cancer,aimed at the eyes
Clinical manifestations
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Redness,pain and difficulty moving the lids
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Itching,excessive mucus secretion
Blurred vision, aften worsening at the end of the day,after focusing for prolonged period
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Definition
Or keratoconjuctivitis sicca,is a deficiency in the production of any of the aqueous, mucin or lipid tear film components, lid surface abnormalities or epithelial abnormalities related to systemic diseases,infection,injury or complications of medications
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