
EXTERNAL EYE DISEASES
Some common External Eye Diseases include:
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Blepharitis - 
inflammation of the edges of the eyelids, possibly with thickening scales, crusts, shallow ulcers, or redness and swelling at the edges of the eyelids 
 
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Chalazion - 
enlargements of an oil gland (similar to a pimple) deep in the eyelid caused by an obstruction of the gland’s opening 
 
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Stye - 
infected eyelash follicles. 
 
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Lacrimal duct obstruction/infection - 
partial or complete obstruction in the tear drainage system 
 
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Symptoms
Symptoms may include:
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Swelling 
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Pain 
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Redness 
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Itching 
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Burning 
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Growth 
Causes
Some of the causes for the following corneal disorders are:
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Blepharitis - 
bacterial or viral infection 
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allegic reaction 
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skin conditions, for eg. eczema 
 
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Chalazion - 
obstruction of gland without infection 
 
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Stye - 
staphylococcal (bacterial) infection 
 
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- 
Lacrimal duct obstruction/infection - 
chronic infection or inflammation 
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tumour 
 
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External Eye Diseases Treatments
Treatment for external eye diseases include the following:
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Supportive measures - 
for example, warm compresses, eyelid cleansing 
 
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- 
Treating the cause (bacterial, viral origin) 
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Surgery in rare cases 


