Research Article

Changes in Corneal Higher-Order Aberrations and Ocular Biometric Measurements after Phacoemulsification Combined with Goniosynechialysis in Primary Angle Closure/Glaucoma Patients

Table 2

Comparison of changes in corneal HOAs between the two groups before and after surgery.

Corneal HOAsAL ≤ 22.5 mm22.5 < AL ≤ 24.5 mm
Before operationAfter operationBefore operationAfter operation

Anterior corneal surface
HOAs0.64 ± 0.350.77 ± 0.400.63 ± 0.410.77 ± 0.34
Z (4, 0)0.32 ± 0.140.36 ± 0.170.30 ± 0.160.31 ± 0.19
Z (3, −1)0.08 ± 0.370.15 ± 0.390.10 ± 0.270.12 ± 0.28
Z (3, 1)0.04 ± 0.200.07 ± 0.220.00 ± 0.170.03 ± 0.19
Z (3, 3)−0.05 ± 0.17−0.10 ± 0.24−0.04 ± 0.19−0.12 ± 0.22
Z (3, −3)−0.02 ± 0.19−0.22 ± 0.22−0.13 ± 0.21−0.36 ± 0.26

Posterior corneal surface
HOAs0.21 ± 0.060.23 ± 0.080.19 ± 0.080.21 ± 0.07
Z (4, 0)−0.13 ± 0.04−0.15 ± 0.04−0.09 ± 0.04−0.10 ± 0.05
Z (3, −1)0.01 ± 0.05−0.00 ± 0.040.04 ± 0.060.03 ± 0.06
Z (3, 1)−0.00 ± 0.050.01 ± 0.050.00 ± 0.060.01 ± 0.05
Z (3, 3)0.01 ± 0.060.00 ± 0.070.01 ± 0.08−0.01 ± 0.06
Z (3, −3)−0.03 ± 0.070.02 ± 0.08−0.03 ± 0.06−0.00 ± 0.07

Total cornea
HOAs0.61 ± 0.360.73 ± 0.430.62 ± 0.320.79 ± 0.36
Z (4, 0)0.29 ± 0.130.33 ± 0.180.30 ± 0.170.30 ± 0.20
Z (3, −1)0.11 ± 0.400.15 ± 0.410.15 ± 0.290.14 ± 0.30
Z (3, 1)0.04 ± 0.190.07 ± 0.220.00 ± 0.180.04 ± 0.20
Z (3, 3)−0.05 ± 0.18−0.10 ± 0.21−0.05 ± 0.18−0.13 ± 0.21
Z (3, −3)−0.05 ± 0.19−0.21 ± 0.22−0.15 ± 0.21−0.37 ± 0.27§†

: , significant differences between the two groups before surgery. : , compared with the preoperative baseline in each group. §: , significant differences between two groups after surgery. AL: axial length; HOAs: higher-order aberrations; Z (4, 0): spherical; Z (3, 1): horizontal coma; Z (3, −1): vertical coma; Z (3, 3): horizontal trefoil; Z (3, −3): vertical trefoil.