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370 Keratitis

370.0 Corneal ulcer

          Ulcer:
           cornea (central) (marginal) (perforated) (ring)
           hypopyon
           Mooren's
          _________________________________________________________________________
          Category of | Visual acuity with best possible correction
           visual |________________________________________________________________
          impairment | maximum less than | minimum equal to or better than
          ____________|______________________________|_________________________________
           | |
           | 6/18 | 6/60
           1 | 3/10 (0.3) | 1/10 (0.1)
           | 20/70 | 20/200
          ____________|______________________________|_________________________________
           | |
           | 6/60 | 3/60
           2 | 1/10 (0.1) | 1/20 (0.05)
           | 20/200 | 20/400
          ____________|______________________________|_________________________________
           | |
           | 3/60 | 1/60 (finger counting at
           3 | | 1 metre)
           | 1/20 (0.05) | 1/50 (0.02)
           | 20/400 | 5/300 (20/1200)
          ____________|______________________________|_________________________________
           | |
           | 1/60 (finger counting at |
           4 | 1 metre) | Light perception
           | 1/50 (0.02) |
           | 5/300 (20/1200) |
          ____________|______________________________|_________________________________
           |
           5 | No light perception
          ____________|________________________________________________________________
           |
           9 | Undetermined or unspecified
          ____________|________________________________________________________________
          If the extent of the visual field is taken into account, patients with a field
          no greater than 10ø but greater than 5ø around central fixation should be
          placed in category 3 and patients with a field no greater than 5ø around
          central fixation should be placed in category 4, even if the central acuity is
          not impaired.

370.2 Other superficial keratitis without conjunctivitis

          Keratitis: Keratitis:
           areolar striate
           filamentary superficial punctate
           nummular Photokeratitis
           stellate Snow blindness

370.3 Certain types of keratoconjunctivitis

          Keratoconjunctivitis:
           exposure
           neurotrophic
           phlyctenular

370.4 Other and unspecified keratoconjunctivitis

          Keratitis or keratoconjunctivitis
           in other exanthemata
           NOS
          Superficial keratitis with conjunctivitis

370.5 Interstitial and deep keratitis

          Corneal abscess Keratitis:
          Interstitial keratitis: sclerosing
           NOS
           nonsyphilitic

370.6 Corneal neovascularization

          Ghost vessels (corneal)
          Pannus (corneal)

370.8 Other forms of keratitis

370.9 Unspecified

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