Table 1.

Aetiology of corneal ulcers

	India		Ghana
Type of micro-organism	No	%	No	%
Definite bacterial	191	23.9	36	12.4
Definite fungal	309	38.6	105	36.2
Definite mixed	44	5.5	4	1.4
Definite Acanthamoeba spp	7	0.9	1	0.3
Unknown	249	31.1	144	49.7
Total	800	100	290	100

	India	Ghana
*Bacteria only.
Microscopy and culture negative	23	87
Microscopy positive, culture negative*	218	24
Microscopy negative, culture positive	8	33
Total	249	144