Eyes, ears, nose and throat
Age-related macular degeneration
Retinopathy of prematurity
Conductive hearing loss
Eustachian tube dysfunction
Tympanic membrane perforation
Acoustic neuroma (schwannoma)
Temporomandibular joint dysfunction
Gastroesophageal reflux disease (GERD)
Retropharyngeal and peritonsillar abscesses
Thyroglossal duct cyst
Eye conditions: Refractive errors, lens disorders and glaucoma: Pathology review
Eye conditions: Retinal disorders: Pathology review
Eye conditions: Inflammation, infections and trauma: Pathology review
Vertigo: Pathology review
Nasal, oral and pharyngeal diseases: Pathology review
Thyroid nodules and thyroid cancer: Pathology review
Parathyroid disorders and calcium imbalance: Pathology review
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A corneal ulcer, also known as ulcerative keratitis, is a cornea lesion usually due to infection with bacteria, viruses, or fungi. The cornea is the clear, dome-shaped surface that covers the front of the eye. Other causes of corneal ulcers include injury (for example, from a sharp object), contact lens use, and other diseases that affect the eyes. Symptoms of a corneal ulcer include pain, redness, swelling, discharge from the eye, and blurred vision.
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