Table 5. Number of positive cultures (no.), percentage positive (%) and mean CFU for each organism isolated before and after each application of povidone-iodine (n=total number of eyes tested).

Organism	Before 1st application of povidone-iodine				After 1st application of povidone-iodine				Before 2nd application of povidone-iodine				After 2nd application of povidone-iodine
	n	No.	%	CFU	n	No.	%	CFU	n	No.	%	CFU	n	No.	%	CFU
Coagulase-negative Staphylococci	52	12	23	18	52	21	38	29	52	23	44	27	52	5	10	15
S. aureus	52	1	2	10	52	2	4	30	52	2	4	20	52	0	0	<10
Diphtheroids	52	2	4	180	52	1	2	10	52	1	2	10	52	0	0	<10
Viridans Streptococci	52	1	2	2400	52	0	0	<10	52	2	4	335	52	1	2	30
Pseudomonas sp.	52	1	2	240	52	1	2	1690	52	1	2	4690	52	0	0	<10
β-Haemolytic Streptococci	52	0	0	<10	52	1	2	10	52	0	0	<10	52	0	0	<10
Fungus	52	0	0	<10	52	0	0	<10	52	1	2	10	52	0	0	<10

Abbreviation: CFU, colony-forming units.