C55851Level 10
Grade 4 Keratitis, CTCAE
**Semantic type:** Finding
**Definition:** Perforation; best corrected visual acuity of 20/200 or worse in the affected eye
**Synonyms:** - CTCAE Grade 4 Keratitis (corneal inflammation/corneal ulceration) - Grade 4 Keratitis - Grade 4 Keratitis - Grade 4 Keratitis (corneal inflammation/corneal ulceration)
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