BMC Ophthalmology

Table 3 Polar value analysis of astigmatism in WTR and ATR group after cataract surgery

From: Torsional and flattening effect on corneal astigmatism after cataract surgery: a retrospective analysis

			1 month postoperatively				2 months postoperatively
			∆AKP(+0)	p value	∆AKP(+45)	p value	∆AKP(+0)	p value	∆AKP(+45)	p value
WTR	MCCS	KA	−0.09 ± 0.25	0.514	0.02 ± 0.01	0.769	−0.15 ± 0.21	0.312	0.10 ± 0.07	0.658
	MCCS	TA	−0.12 ± 0.26	0.026	0.03 ± 0.01	0.115	−0.22 ± 0.20	0.016	0.12 ± 0.10	0.012
	CCS	KA	−0.23 ± 0.81	0.122	0.08 ± 0.04	0.281	−0.47 ± 0.61	0.310	0.16 ± 0.13	0.184
	CCS	TA	−0.27 ± 0.80	0.017	0.1 ± 0.05	0.046	−0.55 ± 0.63	0.008	0.29 ± 0.21	0.009
ATR	MCCS	KA	−0.07 ± 0.23	0.438	0.02 ± 0.01	0.637	−0.13 ± 0.19	0.306	0.09 ± 0.08	0.715
	MCCS	TA	−0.11 ± 0.29	0.041	0.02 ± 0.01	0.790	−0.20 ± 0.21	0.026	0.11 ± 0.10	0.038
	CCS	KA	−0.21 ± 0.85	0.118	0.08 ± 0.04	0.101	−0.44 ± 0.86	0.107	0.14 ± 0.11	0.091
	CCS	TA	−0.25 ± 0.92	0.011	0.13 ± 0.04	0.024	−0.53 ± 0.89	0.005	0.28 ± 0.19	0.013

Values are presented as mean ± SD
∆ change, AKP astigmatic polar value, ATR against-the-rule, CCS conventional cataract surgery, KA keratometric astigmatism, MCCS microcoaxial cataract surgery, TA total astigmatism, WTR with-the-rule

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