Three-Random-Point Marking Method for Toric Intraocular Lens Alignment Using the iTrace Aberrometer

Table 1

Comparison of pre- and postoperative outcomes between the three-random-point marking group and the slit-lamp horizontal meridian marking group.

Parameter	TRP marking group	SHM marking group	value
Preexisting corneal astigmatism cyl (D)	2.31 ± 0.61	2.24 ± 0.42	0.727
Postop cyl (D)	0.41 ± 0.17	0.47 ± 0.13	0.240
Preop UDVA (logMAR)	0.52 ± 0.17	0.62 ± 0.22	0.169
Preop CDVA (logMAR)	0.35 ± 0.10	0.41 ± 0.12	0.172
Postop UDVA (logMAR)	0.13 ± 0.07	0.10 ± 0.05	0.125
Postop CDVA (logMAR)	0.11 ± 0.07	0.07 ± 0.05	0.06
Toric IOL misalignment (°)	2.66 ± 1.42	3.29 ± 1.67	0.295

TRP = three-random-points; SHM = slit-lamp horizontal meridian; cyl = cylinder; UDVA = uncorrected distance visual acuity; CDVA = corrected distance visual acuity; logMAR = logarithm of the minimum angle of resolution; IOL = intraocular lens. Statistically significant differences, .