Vector analysis of femtosecond laser-assisted astigmatic keratotomy after deep anterior lamellar keratoplasty and penetrating keratoplasty
Vector analysis of femtosecond laser-assisted astigmatic keratotomy after deep anterior lamellar keratoplasty and penetrating keratoplasty
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DOI：
10.1007/s10792-017-0803-0
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发表时间：
2019-01-01
影响因子：
1.6
通讯作者：
Khattak, Ashbala
中科院分区：
文献类型：
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作者：
AnNakhli, Fouad;Khattak, Ashbala
PurposeTo compare the refractive and keratometric changes indicated by femtosecond laser crystalmatic keratotomy（AK）for suture-out post-keratoplasty astigmatism in deep anterior laminate keratoplasty（group I）and penetrating keratoplasty（group II）. SettingDhaidong Eye Specialist Hospital，Dhaidong，Saudi Arabia.DesignRetrospective，comparative，interventional study.MethodsThis study comprises 15 eyes in group I and 35 eyes in group II.所有患眼均接受飞秒AK治疗角膜移植术后散光。术前及术后6个月分别进行屈光度及角膜曲率测量。向量分析的Alpins方法被用来评估角膜曲率的变化引起的AK。ResultsThe屈光矫正分别为99和110%，在组I和组II（p=0.743）和成功的AK分别为43和51%，在组I和组II（p=0.966）。随着手术引起的散光的增加，误差的大小有过度矫正的趋势（r=0.80，p <0.05）。
PurposeTo compare the refractive and keratometric changes induced by femtosecond laser astigmatic keratotomy (AK) for suture-out post-keratoplasty astigmatism in deep anterior lamellar keratoplasty (group I) and penetrating keratoplasty (group II).SettingDhahran Eye Specialist Hospital, Dhahran, Saudi Arabia.DesignRetrospective, comparative, interventional study.MethodsThis study comprised 15 eyes in group I and 35 eyes in group II. All eyes underwent femtosecond AK for suture-out post-keratoplasty astigmatism. The refractive and keratometric measurements were evaluated before and 6months after AK. The Alpins method for vector analysis was used to evaluate the keratometric changes induced by AK.ResultsThe astigmatic correction was 99 and 110% in group I and group II, respectively (p=0.743) and the success of AK was 43 and 51% in group I and group II (p=0.966). There was a trend in the magnitude of error toward overcorrection with increased surgically induced astigmatism (r=0.80 with p