Table 2.

Importance ratings of factors that are pre-requisites for ISBCS. A significant amount of importance was given to prevent infection (reducing the risk of endophthalmitis, good infection record and re-gowning and re-gloving)

Option	Not important	A little important	Important	Very important
The patient and their eyes have no additional risk of developing endophthalamitis	0 (0%)	1 (5.6%)	2 (11.1%)	15 (83.3%)
Exclusion of high risk eyes (extremes of axial length, glaucoma, risk of inflammation including cystoid macular oedema, risk of retinal detachment, dense or white nucleus, etc)	1 (5.6%)	2 (11.1%)	5 (27.8%)	10 (55.6%)
Surgeon with a track record	0 (0%)	0 (0%)	10 (55.6%)	8 (44.4%)
Operating facilities have good infection record	0 (0%)	1 (5.6%)	2 (11.1%)	15 (83.3%)
The surgeon and scrub nurse rescrub, regown and reglove before second eye surgery	2 (11.1%)	0 (0%)	0 (0%)	16 (88.9%)
Second surgeon and second scrub nurse scrub for second eye surgery	13 (72.2%)	3 (16.7%)	0 (0%)	2 (11.1%)
Instruments for each operation having gone through different sterilisation cycles	7 (38.9%)	2 (11.1%)	2 (11.1%)	7 (38.9%)
Medicine, solutions and cannulae having come from different manufacturers or have different batch numbers	5 (27.8%)	2 (11.1%)	3 (16.7%)	8 (44.4%)
Day 1 review by ophthalmologist	13 (72.2%)	3 (16.7%)	2 (11.1%)	0 (0%)