Table 1.

Causative organisms pre- and post-implementation of RANZCO guidelines (October 2012) for intravitreal injections (IVI)

Causative organism	Pre-guidelines (2007–2010)	Post-guidelines (2012–2017)	P value
Staph epidermidis	14 (26.4%)	44 (31.2%)	0.6
Staph aureus	3 (5.7%)	20 (14.2%)	0.14
Streptococcus spp.	13 (24.5%)	5(3.55%)	< 0.00004
Other gram positive	1 (1.9%)	3 (2.13%)	1
Culture negative	20 (37.7%)	65 (46.1%)	0.33
Total	53	141