Signs that a swollen eyelid is due to infection may include pain, inflammation, watery discharge and a red, itchy eye, says AllAboutVision.com. Bacterial infections cause styes and gland inflammations. A rare but serious infection called orbital cellulitis causes fever, bulging eyes and decreased vision.Continue Reading
Causes of infectious conjunctivitis, or pink eye, include bacteria, fungi and viruses, notes AllAboutVision.com. A thick discharge or pus are common effects of bacterial conjunctivitis. Viral conjunctivitis is highly contagious and often causes a watery discharge. All types of pink eye cause redness and inflammation of the mucous membrane that covers the white part of the eye. A swollen eyelid due to infection may produce a reddish, swollen bump on the edge of the eyelid, called a stye.
Orbital cellulitis is a bacterial infection that affects tissues around the eye, sometimes including the eyebrow and cheek, according to AllAboutVision.com. This condition requires immediate treatment with intravenous antibiotics to avoid serious consequences such as permanent vision loss or blindness, Ocular herpes is a viral infection that causes inflammation and potential scarring of the cornea. Blurry vision, painful sores on the eyelid, and badly swollen eyes are typical signs of ocular herpes. Non-infectious causes of a swollen eyelid include allergies, malfunctioning oil glands, injuries and a condition called Graves' disease that involves an overactive thyroid gland.Learn more about Pain & Symptoms