Table 7 Size of corneal ulcers evaluated in 3298 eyes and microbiological correlation.

Sl no	Size of corneal ulcer	Positive for fungus						Positive for bacteria including Nocardia			Positive for Acanthamoeba						Positive for Nocardia
		KOH +ve	Gram +ve	Culture +ve	KOH and culture +ve	KOH and Gram +ve	Gram and culture +ve	Gram +ve	Culture +ve	Gram and culture +ve	KOH +ve	Gram +ve	Culture +ve	KOH and culture +ve	KOH and Gram +ve	Gram and culture +ve	KOH +ve	Gram +ve	Culture +ve	KOH and culture +ve	KOH and Gram +ve	Gram and culture +ve
1	<2 mm	61	15	59	50	15	15	136	109	109	0	0	0	0	0	0	5	0	5	0	0	0
2	2–6 mm	806	718	802	802	719	719	826	814	814	5	0	6	5	0	0	23	22	23	22	22	22
3	>6 mm	363	355	359	359	355	355	241	228	228	27	21	29	27	21	21	18	18	18	18	18	18
	Total	1230	1088	1220	1211	1088	1088	1203	1151	1151	32	21	35	32	21	21	46	40	46	40	40	40