Table 2. Characteristics of groups with or without CME in OCT 1 month after surgery.

			CME development
			no	yes (%)*
Factor			(n = 62)	(n = 10)	P value
Age, years			67.9±10.05	72.4±8.25	0.189
Sex, n
		male	26	6 (18.8%)	0.317
		female	37	4 (9.8%)
History of diabetes, n
		no	53	9 (14.5%)	0.999
		Yes	10	1 (9.1%)
Laterality, n
		OD	32	5 (13.5%)	0.999
		OS	31	5 (13.9%)
Preoperative BCVA, logMAR			0.31±0.272	0.35±0.216	0.337
Snellen equivalent			20/41	20/45
Biometric values
	Mean keratometric value, D		42.8±1.38	42.9±1.88	0.968
	Anterior chamber depth, mm		2.65±0.394	2.58±0.375	0.563
	Anterior chamber angle, degrees		33.1±6.50	31.2±4.61	0.449
	Axial length, mm		23.9±1.07	23.8±1.41	0.654
	Preoperative CRT, µm		241±20.0	249±31.6	0.479
Postoperative 1-month BCVA, logMAR			0.11±0.160	0.09±0.151	0.811
	Snellen equivalent		20/26	20/25
Postoperative 1-month CRT, µm			251±21.1	296±44.6	0.002
Median number of 1-week VHDs, n (range)			1.0 (0–8)	2.5 (0–18)	0.025
Median number of 1-month VHDs, n (range)			1.0 (0–10)	5.0 (0–11)	0.004

CME = cystoid macular edema; OCT = optical coherence tomography; BCVA = best-corrected visual acuity; logMAR = the logarithm of the minimum angle of resolution; D = diopters; CRT = central subfield retinal thickness; VHD = vitreous hyper-reflective dot.

Results are expressed a mean ± standard deviation.

*Incidence of CME in total cases of each condition.

P values were calculated with the Fisher exact test for categorical variables and the Mann-Whitney U test for continuous variables.