1 Department of Ophthalmology, Royal Perth Hospital, Perth, Western Australia, Australia.
2 School of Pathology and Laboratory Medicine, University of Western Australia, Perth, Australia.
3 Department of Microbiology, PathWest Laboratory Medicine, Fiona Stanley Hospital, Perth, Western Australia, Australia.
4 Department of Infectious Diseases and Microbiology, Royal Perth Hospital, Perth, Western Australia, Australia. paul.ingram@health.wa.gov.au.
5 Centre for Ophthalmology and Visual Science (incorporating Lions Eye Institute), The University of Western Australia, Perth, Western Australia, Australia.
6 Department of Ophthalmology, Perth Children's Hospital, Perth, Western Australia, Australia.