Influence of angle alpha on visual quality after implantation of extended depth of focus intraocular lenses

BMC Ophthalmology

Table 1 Comparison of preoperative patient parameters (Mean ± SD)

Parameter	Group A1 (r<0.3 mm) (27 eyes)	Group B1 (r ≥ 0.3 mm) (52 eyes)	P	Group A2 (r < 0.4 mm) (41 eyes)	Group B2 (r ≥ 0.4 mm) (38 eyes)	P	Group A3 (r < 0.5 mm) (60 eyes)	Group B3 (r ≥ 0.5 mm) (19 eyes)	P
Age (y)^a	57.89±11.21	56.90±8.41	0.662	57.51±10.34	56.95±8.40	0.792	55.82±12.27	56.79±10.45	0.756
UDVA (logMAR)^b	0.96±0.58	0.80±0.44	0.302	0.96±0.54	0.74±0.41	0.088	0.88±0.53	0.76±0.36	0.604
CDVA (logMAR) ^b	0.57±0.34	0.52±0.30	0.490	0.55±0.33	0.52±0.29	0.819	0.52±0.33	0.58±0.26	0.212
AL (mm) ^b	23.95±1.01	23.65±1.12	0.142	23.92±0.99	23.58±1.17	0.089	23.88±1.08	23.35±1.03	0.067
ACD (mm) ^b	3.29±0.44	3.37±0.37	0.602	3.37±0.42	3.31±0.36	0.418	3.36±0.41	3.29±0.33	0.524
Km (D) ^a	43.78±1.32	43.65±1.73	0.720	43.65±1.39	43.74±1.80	0.809	43.72±1.40	43.60±2.14	0.813
LT (mm) ^a	4.13±0.49	4.07±0.41	0.563	4.12±0.49	4.06±0.38	0.532	4.11±0.42	4.03±0.48	0.454
Corneal astigmatism (D) ^b	0.67±0.27	0.62±0.30	0.471	0.65±0.27	0.62±0.32	0.617	0.63±0.28	0.67±0.36	0.590
Mesopic pupil size (mm) ^b	4.39±0.60	4.24±0.45	0.344	4.36±0.54	4.22±0.47	0.237	4.32±0.51	4.21±0.52	0.226
IOL power (D) ^b	21.06±2.03	21.61±2.72	0.064	21.24±2.09	21.61±2.90	0.178	21.10±2.65	22.42±1.69	0.058
Target refraction (D) ^a	-0.55±0.18	-0.56±0.15	0.816	-0.56±0.17	-0.54±0.15	0.639	-0.56±0.16	-0.52±0.15	0.388

SD Standard deviation, UDVA Uncorrected distance visual acuity, CDVA Corrected distance visual acuity, logMAR Logarithm of the minimum angle of resolution, AL Axial length, ACD Anterior chamber depth, Km Mean keratometry, LT Lens thickness, IOL Intraocular lens
^a parameters normally distributed
^b parameters not normally distributed

ISSN: 1471-2415