Comparative Analysis of the Safety and Functional Outcomes of Anterior versus Retropupillary Iris-Claw IOL Fixation
Table 4
Univariate and multivariable regression analysis showing factors influencing final BCDVA.
Covariate
Interval
Univariate analysis
Multivariable analysis
β coeff
95% CI
β coeff
95% CI
Age
1 year increment
0.06
−0.02–0.16
—
Gender
Female vs. male
0.32
0.07–0.57
0.14
−0.05–0.34
Iris-claw IOL placement
AC vs. PC
0.02
−0.22–0.27
−0.07
−0.26–0.11
Prior trauma
Vs. no prior trauma
0.01
−0.08–1.1
—
Previous surgery
Vs. no surgery
0.13
0.05–0.20
0.08
0.02–0.14#
Preexistent corneal pathology
Vs. no preexistent corneal pathology
0.24
−0.13–0.62
—
Preexistent macular pathology
Vs. no preexistent macular pathology
0.68
0.22–1.14
0.21
−0.16–0.59
Preexistent retinal pathology
Vs. no preexistent retinal pathology
0.11
−0.15–0.37
—
Postop. CME
Vs. no postop. CME
0.07
−0.19–0.35
—
Postop. PBK
Vs. no postop. PBK
0.25
−0.12–0.63
—
Postop. complication†
Vs. no postop. complications
0.25
0.01–0.49
—
BCDVA at 1 month
0.1 logMAR increment
0.70
0.48–0.92
0.63
0.42–0.84#
; † = excluded from multivariable model due to variance inflation; # = β-coefficient based on stepwise regression model for best fit. R2 = 0.57; IOL: intraocular lens; CME: cystoid macular edema; PBK: pseudophakic bullous keratopathy; BCDVA: best-corrected distance visual acuity; AC: anterior chamber; PC: posterior chamber; CI: confidence interval.
