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Keratitis
Aka: Keratitis, Corneal Injury, Corneal Trauma, Corneal Inflammation
- Definition
- Corneal Inflammation
- Etiology
- Secondary to Scleritis or Episcleritis
- Superficial punctate Keratitis (pinpoint Corneal lesions)
- Exposure to sun or Sunlamp (UV Keratitis)
- Arc-welding
- Contact Lens overuse
- Corneal Abrasion from foreign body
- Infection
- Bacterial Keratitis (esp. Contact Lens wear)
- Pseudomonas (esp. yellow-green discharge)
- Staphylococcus aureus
- Serratia
- Viral Keratitis
- Herpes Simplex Keratitis (dendritic lesion)
- Varicella Zoster Virus (Herpes Zoster Ophthalmicus)
- Epstein-Barr Virus
- Cytomegalovirus
- Parasitic Keratitis
- Acanthamoeba (esp. poor Contact Lens hygiene or water exposure while wearing)
- Severe Eye Pain, redness and photophobia for weeks
- Infiltrate in shape of ring over Cornea
- Symptoms
- Moderate to severe Eye Pain
- Moderate to severe Foreign body sensation
- Blurred Vision
- Watery to mucopurulent Eye Discharge
- Photophobia
- Eye tearing
- Painful Red Eye
- Signs
- Conjunctival injection and Ciliary Flush
- Corneal vascularization (sclerosing Keratitis)
- Corneal Opacification (sclerosing Keratitis)
- Decreased Visual Acuity (depending on location)
- Normal or reduced pupil size
- Fluorescein Staining for Corneal Epithelial Disruption
- Keratitis may have a more diffuse uptake
- Corneal Ulcer (Ulcerative Keratitis)
- Hypopyon
- Management
- Ophthalmology Consultation
- References
- Pflipsen (2016) Am Fam Physician 93(12): 991-8 [PubMed]