Table 2.

Post-operative complications compared to RCOphth NOD 2017

Presence or absence of post-operative complications	Recorded in 4938 of eyes (98.6%), n (%)	RCOphth NOD 2017 for operations with recorded data (35.6%), %
No post-operative complications	4454 (90.2)	88.6
One or more post-operative complications	484 (9.8)	11.4
Post-operative uveitis	129 (2.6)	3.2
Cystoid macular oedema	99 (2.0)	2.7
Corneal oedema/striae/Descemet’s folds	78 (1.6)	2.7
Raised IOP (>21 mm Hg)	60 (1.2)	1.6
Reduction in visiona	50 (1.0)
Macular oedema	33 (0.7)	0.0
Corneal decompensation	17 (0.3)	0.2
Unexpected refractive outcome	14 (0.3)	0.2
Vitreous in AC	9 (0.2)	0.3
Leaking wound (Seidel +ve)	7 (0.1)	<0.1
Hypotony <5	6 (0.1)	<0.1
Retained soft lens matter	6 (0.1)	0.4
IOL decentred	5 (0.1)	0.2
Iris to wound	5 (0.1)	<0.1
Vitreous to the section	4 (0.1)	0.1
Choroidal effusion/haemorrhage	3 (0.1)	<0.1
Retinal tear	3 (0.1)	<0.1
Posterior capsule opacification—YAG indicated	3 (0.1)	0.1
Corneal epithelial defect	2 (<0.1)	<0.1
Endophthalmitis	2 (<0.1)	<0.1
Hyphaema	2 (<0.1)	<0.1
Post-operative eyelid oedema	2 (<0.1)	<0.1
Anterior capsulophimosis	1 (<0.1)	<0.1
Diplopia	1 (<0.1)	<0.1
Iris prolapse	1 (<0.1)	<0.1
Post-operative ptosis	1 (<0.1)	<0.1
Posterior capsule opacification	1 (<0.1)	0.3
Progression of diabetic retinopathy	1 (<0.1)	<0.1
Retinal detachment	1 (<0.1)	<0.1
Vitreous haemorrhage	1 (<0.1)	<0.1
Other	69 (1.4)	1.3

AC anterior chamber, IOL intraocular lens, IOP intraocular pressure, RCOphth NOD Royal College of Ophthalmologists’ National Ophthalmology Database

^aNote reduction of vision was reported by the clinician using electronic medical record and is not the same as the RCOphth NOD definition of doubling of the visual angle or worse. We report a 1.26% rate of reduction in vision according to the RCOphth NOD criteria