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SYMPTOMS
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Discomfort | Reduced vision | Sometimes asymptomatic
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SIGNS
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Gray-white calcium deposition at Bowman membrane, usually horizontal across the cornea
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WORK-UP
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Thorough history. Slit lamp examination
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TREATMENT
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Preservative-free artificial tears | Bandage contact lenses | EDTA chelation of the calcium plaque
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FOLLOW-UP
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Every 3-12 months depending on severity
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ETIOLOGY
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There are several causes of BK, including: Glaucoma | Uveitis | Eye surgery | Phthisis bulbi | Hypercalcemia | Trauma | Idiopathic
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DIFFERENTIAL DX
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Interstitial keratitis | Spheroidal degeneration | Limbal stem cell deficiency | Salzmann nodular degeneration
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