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. 2021 Aug 11;8:715118. doi: 10.3389/fmed.2021.715118

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Copyright © 2021 Ting, Cairns, Gopal, Ho, Krstic, Elsahn, Lister, Said and Dua.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A–C) Examples of bacterial keratitis with varying severity, including (A) small infiltrate (≤3 mm), (B) moderate infiltrate (3.1–6 mm), and (C) large infiltrate (>6 mm). (D–F) Examples of bacterial keratitis in different locations, including (D) peripheral, (E) paracentral, and (F) central location.