Table 3.

Corneal culture findings in relation to predisposing risk factor in patients with infectious keratitis

		Total	CLW	NK	OSD	OT	CT	ELD	SI/B	OOS
All microbes isolated		378	156	83	37	30	36	24	8	4
Gram‐positive	Staphylococcus aureus	43	10	11	8	6	5	2	–	1
	Coagulase‐negative staphylococci	113	49	26	7	10	10	9	1	1
	Streptococcus pneumoniae	9	1	1	4	1	1	–	1	–
	Alpha‐haemolytic streptococci	24	6	4	4	6	3	1	–	–
	Beta‐haemolytic streptococci	4	1	2	1	–	–	–	–	–
	Corynebacterium spp.	34	13	8	5	–	5	2	1	–
	Micrococcus spp.	5	1	1	1	–	–	–	–	2
	Miscellaneous*	3	1	2	–	–	–	–	–	–
	Total Gram‐positive	235	82	55	30	23	24	14	3	4
Gram‐negative	Haemophilus influenzae	4	1	–	–	–	1	1	1	–
	Moraxella spp.	21	2	10	2	1	2	2	2	–
	Neisseria meningitidis	3	3	–	–	–	–	–	–	–
	Pseudomonas aeruginosa	19	16	–	–	–	1	2	–	–
	Enterobacteriaceae†	9	5	–	–	–	1	2	1	–
	Miscellaneous‡	6	2	1	2	1	–	–	–	–
	Total Gram‐negative	62	29	11	4	2	5	7	4	–
Anaerobes	Anaerobic diphteroid rods§	73	41	16	3	4	6	3	–	–
	Anaerobic Gram‐positive cocci	2	1	1	–	–	–	–	–	–
	Total anaerobes	75	42	17	3	4	6	3	–	–
Fungi	Candida albicans	2	1	–	–	–	1	–	–	–
	Miscellaneous¶	4	2	–	–	1	–	–	1	–
	Total fungi	6	3	–	–	1	1	–	1	–

CLW = contact lens wear; CT = corneal transplant; ELD = eye lid disorder; NK = no known; OOS = other ocular surgery; OSD = ocular surface disease; OT = ocular trauma; SI/B = severely ill/blind eye.

* Miscellaneous Bacillus spp., Clostridium spp.

^† Enterobacteriaceae Serratia spp., Escherichia coli, Enterobacteriaceae spp. Klebsiella oxytoca, Proteus mirabilis.

^‡ Miscellaneous Aggregatibacter segnis, Stenotrophomonas maltophilia, Chrysoebacterium indologenes, Pasteurella multocida. Pseudomonas spp., Gram‐negative rod not specified.

^§ Anaerobic diphteroid rods: Cutibacterium acnes, anaerobic diphteroid rods.

^¶ Miscellaneous: Aspergillus fumigatus, Alternaria spp., Fusarium spp., mould non‐specified.