Clinical Study

Wavefront-Guided Photorefractive Keratectomy with the Use of a New Hartmann-Shack Aberrometer in Patients with Myopia and Compound Myopic Astigmatism

Table 6

Summary of published results of wavefront-guided photorefractive keratectomy.

Author (year) Number of eyes Follow-up (months) LaserPreoperativePostoperativePostoperative MSE withinPostop. UDVA 20/20 or better Loss of 2 or more lines of CDVA
MSE [D]
Mean ± SD
(range)
Magnitude of cylinder [D]
Mean ± SD
(range)
MSE [D]
Mean ± SD
(range)
Magnitude of cylinder [D]
Mean ± SD
(range)
±0.50 D±1.00 D

Vinciguerra et al. (2007) [15]683NIDEK EC-5000 CX Il−5.73 ± 2.03
(−2.50 to −11.25)
0.66 ± 0.59
(0 to 2.50)
−0.02 ± 0.78
(—)
92%98%100%0%
Durrie et al. (2008) [16]506Alcon LADARVision
4000
−3.99
(—)
0.63
(0 to 2.75)
+0.08
(—)
0.26
(—)
94%
Karimian et al. (2010) [17]288.1 ± 3.3Technolas 217z−4.92 ± 1.60
(−1.13 to −7.87)
0.93 ± 1.10
(—)
+0.19 ± 0.60
(−0.63 to +1.38)
0.57 ± 0.40
(0 to 1.50)
60.7%100%67.9%
Moshirfar et al. (2010) [5]1016Visx Star S4 IR−4.31 ± 2.01
(−1.53 to −8.07)
0.96 ± 0.78
(0 to 3.00)
+0.08 ± 0.35 (−0.75 to 1.50)0.36 ± 0.37
(0 to 1.25)
77%75%2%
Manche and Haw (2011) [18]3412Visx Star S4 IR−4.39 ± 2.02
(−0.75 to −8.00)
0.85 ± 0.62
(0.0 to 2.50)
−0.17 ± 0.41
(—)
0.25 ± 0.25
(—)
91%97%97%0%
Joosse et al. (2011) [19]6012Technolas 217z−6.05 ± 0.77
(−4.25 to −7.63)
0.88 ± 0.56
(0 to 2.25)
−0.02 ± 0.47
(−1.50 to 0.88)
0.32 ± 0.32
(0 to 1.25)
80%96.7%80%6.7%
van Philips (2011) [20]2710Technolas 217z100−5.72 ± 0.88
(−4.25 to −7.50)
0.84 ± 0.59 
(0 to 2.25)
−0.03 ± 0.42
(−0.75 to +1.00)
0.32 ± 0.33
(0 to 1.25)
82%100%78%0%
Bababeygy and Manche (2011) [21]14612Visx Star S4 IR−5.70 ± 2.54
(−0.13 to −10.30)
0.96 ± 0.81
(0 to 3.25)
−0.26 ± 0.31
(—)
0.30 ± 0.35
(0 to 1.50)
81.5%96.6%0%
Moshirfar et al. (2011) [22]233Visx Star S4 IR−3.34 ± 1.75
(+1.0 to −8.50)
0.47 ± 0.35
(0 to 2.75)
+0.14 ± 0.31
(−0.38 to +0.88)
0.27 ± 0.25
(0 to 0.75)
96%100%91%0%
Mifflin et al. (2012) [23]4012Visx Star S4 IR−3.22 ± 1.86
(+0.38 to −7.13)
0.72 ± 0.64
(0 to 2.50)
−0.08 ± 0.35
(−0.63 to +0.75)
0.31 ± 0.40
(0 to 1.25)
88.6%94.3%88.6%0%
Ryan and O’Keefe (2012) [6]3812Technolas 217z100−3.99 ± 1.26
(−2.04 to −6.52)
1.01 ± 1.23
(−0.25 to 5.80)
−0.26 ± 0.31
(—)
0.47 ± 0.51
(—)
89.2%97.3%87%0%
Current study6623Visx Star S4 IR−3.69 ± 2.20
(−0.50 to −11.00)
0.86 ± 0.83
(0 to 5.25)
+0.03 ± 0.38
(−2.50 to +2.00)
0.22 ± 0.28
(0 to 2.00)
91.1%97.6%89.4%1.1%

Cylinder change in the table: positive change in cylinder means reduction of cylinder.