TY - JOUR
T1 - Analysis of photoastigmatic keratectomy with the cross-cylinder ablation
AU - Rosa, Nicola
AU - De Bernardo, Maddalena
AU - Romano, Mario R.
AU - Scarfato, Gianluca
AU - Verdoliva, Francesco
AU - Mastropasqua, Rodolfo
AU - Lanza, Michele
PY - 2012/7
Y1 - 2012/7
N2 - Aim: The aim was to evaluate the safety and efficacy of the "cross-cylinder" technique in the correction of astigmatism. Setting and Design: A prospective interventional study from a university eye department was conducted. Material and Methods: The photoastigmatic refractive keratectomy (PARK) using the "cross-cylinder" technique was performed in 102 eyes of 84 patients with at least 0.75 D of astigmatism. The study population was divided into two groups: in the first group the preoperative astigmatic power ranged from 0.75 D to 3.00 D (group 1), in the second group it ranged from -3.25 D to -6.00 D (group 2). Group 1 included 82 eyes of 67 patients (29 males and 38 females) with a mean cylinder power of -1.90 ± 0.63 D, group 2 included 20 eyes of 17 patients (13 males and 4 females) with a mean cylinder power of -4.28 ± 0.76 D. All eyes were targeted for emmetropia. The results were evaluated using Calossi's vector analysis method. Six-month postoperative outcomes are presented. Results: Six months after PARK the mean sphere for the entire cohort was +0.28 ± 0.75 D (range +2.5 to -2 D), the mean cylindrical power was +0.33 ± 0.51 D (range +2.5 to -1.25 D) and the mean spherical equivalent refraction was +0.73 ± 0.81 D (range +1.75 to -2 D). Conclusions: The cross-cylinder technique may be safely used with predictable results for the correction of astigmatism.
AB - Aim: The aim was to evaluate the safety and efficacy of the "cross-cylinder" technique in the correction of astigmatism. Setting and Design: A prospective interventional study from a university eye department was conducted. Material and Methods: The photoastigmatic refractive keratectomy (PARK) using the "cross-cylinder" technique was performed in 102 eyes of 84 patients with at least 0.75 D of astigmatism. The study population was divided into two groups: in the first group the preoperative astigmatic power ranged from 0.75 D to 3.00 D (group 1), in the second group it ranged from -3.25 D to -6.00 D (group 2). Group 1 included 82 eyes of 67 patients (29 males and 38 females) with a mean cylinder power of -1.90 ± 0.63 D, group 2 included 20 eyes of 17 patients (13 males and 4 females) with a mean cylinder power of -4.28 ± 0.76 D. All eyes were targeted for emmetropia. The results were evaluated using Calossi's vector analysis method. Six-month postoperative outcomes are presented. Results: Six months after PARK the mean sphere for the entire cohort was +0.28 ± 0.75 D (range +2.5 to -2 D), the mean cylindrical power was +0.33 ± 0.51 D (range +2.5 to -1.25 D) and the mean spherical equivalent refraction was +0.73 ± 0.81 D (range +1.75 to -2 D). Conclusions: The cross-cylinder technique may be safely used with predictable results for the correction of astigmatism.
KW - Cross-cylinder technique
KW - photoastigmatic refractive keratectomy
KW - refractive surgery
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U2 - 10.4103/0301-4738.98707
DO - 10.4103/0301-4738.98707
M3 - Article
C2 - 22824597
AN - SCOPUS:84864444441
VL - 60
SP - 283
EP - 287
JO - Indian Journal of Ophthalmology
JF - Indian Journal of Ophthalmology
SN - 0301-4738
IS - 4
ER -