Scheimpflug成像技术观察了胶原交联术后角膜前后表面的变化。
Scheimpflug imaged corneal changes on anterior and posterior surfaces after collagen cross-linking.
作者信息
Hassan Ziad, Modis Laszlo, Szalai Eszter, Berta Andras, Nemeth Gabor
机构信息
Orbident Refractive Surgery and Medical Center, Debrecen 4032, Hungary.
Department of Ophthalmology, Medical and Health Science Center, University of Debrecen, Debrecen 4012, Hungary.
出版信息
Int J Ophthalmol. 2014 Apr 18;7(2):313-6. doi: 10.3980/j.issn.2222-3959.2014.02.21. eCollection 2014.
AIM
To compare the anterior and posterior corneal parameters before and after collagen cross-linking therapy for keratoconus.
METHODS
Collagen cross-linking was performed in 31 eyes of 31 keratoconus patients (mean age 30.6±8.9y). Prior to treatment and an average 7mo after therapy, Scheimpflug analysis was performed using Pentacam HR. In addition to corneal thickness assessments, corneal radius, elevation, and aberrometric measurements were performed both on anterior and posterior corneal surfaces. Data obtained before and after surgery were statistically analyzed.
RESULTS
In terms of horizontal and vertical corneal radius, and central corneal thickness no deviations were observed an average 7mo after operation. Corneal higher order aberration showed no difference neither on anterior nor on posterior corneal surfaces. During follow-up period, no significant deviation was detected regarding elevation values obtained by measurement in mm units between the 3.0-8.0 mm-zones.
CONCLUSION
Corneal stabilization could be observed in terms of anterior and posterior corneal surfaces, elevation and higher order aberration values 7mo after collagen cross-linking therapy for keratoconus.
目的
比较圆锥角膜患者胶原交联治疗前后角膜前、后表面参数。
方法
对31例圆锥角膜患者（平均年龄30.6±8.9岁）的31只眼进行胶原交联治疗。治疗前及治疗后平均7个月，使用Pentacam HR进行眼前节分析。除角膜厚度评估外，还对角膜前、后表面进行角膜半径、高度及像差测量。对手术前后获得的数据进行统计学分析。
结果
术后平均7个月，在水平和垂直角膜半径及中央角膜厚度方面未观察到偏差。角膜前、后表面的高阶像差均无差异。随访期间，在3.0 - 8.0毫米区域内，以毫米为单位测量的高度值未检测到明显偏差。
结论
圆锥角膜胶原交联治疗7个月后，在角膜前、后表面、高度及高阶像差值方面可观察到角膜稳定。
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