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 HOAs
AL ≤ 22.5 mm
22.5 < AL ≤ 24.5 mm
Before operation
After operation
Before operation
After operation
Anterior corneal surface
HOAs
0.64 ± 0.35
0.77 ± 0.40†
0.63 ± 0.41
0.77 ± 0.34†
Z (4, 0)
0.32 ± 0.14
0.36 ± 0.17
0.30 ± 0.16
0.31 ± 0.19
Z (3, −1)
0.08 ± 0.37
0.15 ± 0.39
0.10 ± 0.27
0.12 ± 0.28
Z (3, 1)
0.04 ± 0.20
0.07 ± 0.22
0.00 ± 0.17
0.03 ± 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
HOAs
0.21 ± 0.06
0.23 ± 0.08
0.19 ± 0.08
0.21 ± 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 ± 0.04
0.04 ± 0.06
0.03 ± 0.06
Z (3, 1)
−0.00 ± 0.05
0.01 ± 0.05
0.00 ± 0.06
0.01 ± 0.05
Z (3, 3)
0.01 ± 0.06
0.00 ± 0.07
0.01 ± 0.08
−0.01 ± 0.06
Z (3, −3)
−0.03 ± 0.07
0.02 ± 0.08
−0.03 ± 0.06
−0.00 ± 0.07
Total cornea
HOAs
0.61 ± 0.36
0.73 ± 0.43†
0.62 ± 0.32
0.79 ± 0.36†
Z (4, 0)
0.29 ± 0.13
0.33 ± 0.18
0.30 ± 0.17
0.30 ± 0.20
Z (3, −1)
0.11 ± 0.40
0.15 ± 0.41
0.15 ± 0.29
0.14 ± 0.30
Z (3, 1)
0.04 ± 0.19
0.07 ± 0.22
0.00 ± 0.18
0.04 ± 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.