Chalazion chronic sterile lipogranuloma residing within eyelid that originates from an obstructed meibomian gland of the tarsal plates.
chalazion nodule of an eyelid. arises from obstruction of the sebaceous (oil glands) of the eyelid tarsal plate. affects the upper eyelids more commonly than lower lids because there are more meibomian (sebaceous) glands in the upper lid.
complications Large chalazia can occasionally exert mass effect on cornea and result in astigmatism and blurred vision; Acute secondary infection can lead to pain
Conservative treatment lid massage, warm compression and antibiotic-steroid eye drops or ointments Risk - the intraocular pressure should be monitored and the treatment course should be limited. Topical antibiotics eye drops are useful if the chalazion is associated with inflammatory conditions such as blepharitis .
Injection Local injection leads to resolution - steroid or 5-flurouracil. repeated injection can be given 1-2 weeks later if lesion persists. risks -skin necrosis, subcutaneous fat atrophy, embolic visual loss, incomplete resolution and need for surgical removal, and skin hypo-or hyper-pigmentation
Incision and curettage Local anesthetic agent is injected to the area surrounding the lesion. Eyelid is then everted with special clamp and incision is made through conjunctiva. Contents of chalazion are curetted, and tarsus may be minimally resected Since the operation is done at the inner side of eyelid, no scar will be seen over the anterior aspect of the lid. Preferably, specimens obtained during the procedure should be sent to pathology.