Eye Infections

Blepharitis

Description of Medical Condition An inflammatory reaction of the eyelid margin. It usually occurs as seborrheic (non-ulcerative) or as staphylococcal (ulcerative) blepharitis. Both types may coexist. System(s) affected: Skin/Exocrine Genetics: N/A Incidence/Prevalence in USA: Common (the most frequent ocular disease) Predominant age: Adult Predominant sex: Male = Female Medical Symptoms and Signs of Disease • Staphylococcus aureus blepharitis – Itching – Lacrimation; tearing – Burning – Photophobia (light sensitivity) – Usually worse in morning – Recurrent stye (external hordeolum, or internal hordeolum) – Recurrent chalazia (chronic inflammation of meibomian glands) – Fine, epithelial keratitis, lower half of cornea – Ulcerations at base of eyelashes – Broken, sparse, misdirected eyelashes(trichiasis) • Seborrheic …

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Corneal ulceration

Description of Medical Condition Corneal ulcers represent an infection of the cornea by bacteria, virus or fungi as a result of breakdown in the protective epithelial barrier. If left untreated, corneal ulcers can result in blindness. Ulcerations may be central or marginal. System(s) affected: Nervous Genetics: None Incidence/Prevalence in USA: Common Predominant age: None Predominant sex: Male = Female Medical Symptoms and Signs of Disease • Eyelid and conjunctiva become inflamed • Mucopurulent discharge • The corneal epithelium will be absent with underlying ulceration and infiltration of the corneal stroma with leukocytes • Foreign body sensation • Blurred vision • Light sensitivity • Pain What Causes Disease? • Corneal ulcers are …

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