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Effects of pterygium surgery on front and back corneal surfaces and anterior segment parameters

机译：翼状surgery肉手术对角膜前后表面和前节参数的影响

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摘要

The purpose of this study was to evaluate the effects of pterygium surgery on front and back corneal surfaces and anterior segment parameters. This prospective study included 96 eyes with primary pterygium that underwent surgery. Preoperatively and at 1, 3, and 6 months postoperatively, Pentacam was used to evaluate front and back corneal surfaces, anterior chamber depth (ACD), anterior chamber angle (ACA) and anterior chamber volume (ACV). Mean simulated keratometry at the front corneal surface increased from 42.73 ± 2.21 D preoperatively to 44.45 ± 2.05 D at 1 month (P 0.001); it then decreased to 44.32 ± 2.07 D at 3 months (P 0.001) and 44.19 ± 2.10 D at 6 months (P = 0.01). There was no statistically significant change in mean simulated keratometry at the back corneal surface. Radius of the front corneal best-fit sphere (BFS) decreased from 7.99 ± 0.29 mm preoperatively to 7.77 ± 0.25 mm at 1 month postoperatively (P 0.001), without further change up to 6 months. Radius of the back corneal BFS increased from 6.42 ± 0.24 mm preoperatively to 6.50 ± 0.24 mm at 1 month (P 0.001), without further change. Postoperative changes in mean simulated keratometry and radii of BFS had statistically significant positive correlations with pterygium extension onto the cornea and grade of pterygium morphology but, not with the surgical technique. There were no significant changes in ACD, ACA, and ACV values after pterygium surgery. Furthermore, the spherical equivalent of manifest refraction changed from +0.75 ± 1.06 D preoperatively to −0.72 ± 1.33 D at 1 month postoperatively (P = 0.001), with no further significant change. In conclusion, after pterygium surgery there were significant changes in front mean keratometry and front and back corneal radii of BFS. These were correlated with preoperative pterygium size and morphology grade. No significant changes in anterior segment parameters were noted postoperatively.
机译：这项研究的目的是评估翼状surgery肉手术对前后角膜表面和前节参数的影响。这项前瞻性研究包括接受手术的96眼原发性翼状eyes肉。术前以及术后1、3和6个月，使用Pentacam评估前后角膜表面，前房深度（ACD），前房角（ACA）和前房容积（ACV）。术后1个月，角膜前表面的平均模拟角膜测量值从术前的42.73±2.21 D增加到44.45±2.05 D（P <0.001）；然后在3个月时下降至44.32±2.07 D（P <0.001）和6个月时下降至44.19±2.10 D（P = 0.01）。角膜后表面的平均模拟角膜曲率没有统计学上的显着变化。角膜最适合球面（BFS）的半径从术前的7.99±0.29毫米降低到术后1个月的7.77±0.25毫米（P <0.001），长达6个月没有变化。术后1个月，后角膜BFS的半径从术前的6.42±0.24 mm增加到6.50±0.24 mm（P <0.001），而没有进一步的变化。术后BFS的平均模拟角膜曲率和半径的变化与翼状肉在角膜上的延伸和翼状肉形态的等级具有统计学显着正相关，但与手术技术无关。翼状surgery肉手术后，ACD，ACA和ACV值无明显变化。此外，术后1个月的明显屈光度的球面等效值从术前+0.75±1.06 D改变为-0.72±1.33 D（P = 0.001），而没有进一步的显着变化。总之，翼状ery肉手术后，BFS的前平均角膜曲率和前后角膜半径均发生显着变化。这些与术前翼状size肉的大小和形态等级相关。术后未观察到前节参数的显着变化。

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  • 来源
    《International Ophthalmology》 |2012年第3期|p.251-257|共7页
  • 作者

    Ahmad Kheirkhah; Hamid Safi; Rahman Nazari; Reza Kaghazkanani; Hassan Hashemi; Mahmoud Jabbarvand Behrouz;

  • 作者单位

    Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, South Kargar Street, Tehran, Iran;

    Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, South Kargar Street, Tehran, Iran;

    Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, South Kargar Street, Tehran, Iran;

    Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, South Kargar Street, Tehran, Iran;

    Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, South Kargar Street, Tehran, Iran;

    Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, South Kargar Street, Tehran, Iran;

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  • 正文语种 eng
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  • 关键词

    Anterior segment parameters; Corneal best-fit sphere; Keratometry; Pentacam; Pterygium;

    机译：前节参数;角膜最适合球体;角膜曲率测定法;Pentacam;翼状;肉;

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