How did a small knot grow under eyelid to return a responsibility

Lower eyelid long a small knot, medically known as chalazion, also known as meibomian cyst, is the eyelid meibomian gland idiopathic, chronic, non-purulent inflammation. Due to lipid accumulation in Zeis gland and meibomian gland, extrusion adjacent tissue, and cause chronic granulomatous inflammation, normal there is a fibrous tissue cyst, generally red pain, drug treatment and physical therapy effect is not accurate, so, it is recommended that surgery. The surgical incision is on the conjunctival surface, vertical to the eyelid margin, to prevent too much damage to the meibomian glands, and local antibiotic eye drops should be given after surgery to prevent infection and anti-inflammatory treatment.