国际眼科杂志
國際眼科雜誌
국제안과잡지
INTERNATIONAL JOURNAL OF OPHTHALMOLOGY
2014年
10期
1828-1830
,共3页
陈蛟%王华%何书喜%罗栋强
陳蛟%王華%何書喜%囉棟彊
진교%왕화%하서희%라동강
中央角膜厚度%EX500%A型超声测厚仪%准分子激光角膜原位磨镶术
中央角膜厚度%EX500%A型超聲測厚儀%準分子激光角膜原位磨鑲術
중앙각막후도%EX500%A형초성측후의%준분자격광각막원위마양술
central corneal thickness%EX500%A -scan%LASIK
目的：探讨 EX500准分子激光治疗仪( EX500 Excimer Laser workstation )术中测量 LASIK 患者中央角膜厚度( central conreal thickness,CCT)的准确性及临床意义。<br> 方法：对2013-01/06在我院行LASIK手术的63例120眼患者分别用EX500和A型超声测厚仪进行CCT测量,按A超测量值>550μm,500~550μm,<500μm分为三组。用Moria公司 SBK 微型角膜刀切开角膜瓣后再次分别用EX500和A超进行CCT测量。 EX500进行准分子激光消融,完成后测量剩余角膜基质床厚度。对以上数据进行配对t检验。<br> 结果：术前 CCT 的平均测量值：A 超为527.9±34.3μm, EX500为528.5±34.6μm,两者差异无统计学意义( t=1.736,P=0.085)。其中CCT>550μm组的平均测量值：A超为571.4±17.3μm,EX500为572.7±15.7μm,两者差异无统计学意义( t=1.857, P=0.072)。 CCT 500~550μm组的平均测量值：A超为523.4±13.1μm,EX500为524.2±12.4μm,两者差异无统计学意义(t=1.934,P=0.058)。CCT<500μm 组的平均测量值：A 超为484.5±9.8μm, EX500为483.7±8.9μm,两者差异无统计学意义( t=1.395,P=0.174)。掀起角膜瓣后CCT的平均测量值：A超为401.3±34.2μm,EX500为393.4±38.9μm,两者差异有统计学意义( t=6.669, P=0.000), EX500测量平均值明显低于A超组。准分子激光消融完成后测量剩余角膜基质床厚度的平均测量值：A超为332.6±38.3μm,EX500为307.3±37.1μm,两者差异有统计学意义( t=17.165,P=0.000)。<br> 结论：对于LASIK患者术前角膜CCT的测量,EX500与A 超的平均测量值无明显差异,但对于掀起角膜瓣后和准分子激光消融后角膜剩余基质床厚度的测量,EX500测量值低于A超的测量值。
目的：探討 EX500準分子激光治療儀( EX500 Excimer Laser workstation )術中測量 LASIK 患者中央角膜厚度( central conreal thickness,CCT)的準確性及臨床意義。<br> 方法：對2013-01/06在我院行LASIK手術的63例120眼患者分彆用EX500和A型超聲測厚儀進行CCT測量,按A超測量值>550μm,500~550μm,<500μm分為三組。用Moria公司 SBK 微型角膜刀切開角膜瓣後再次分彆用EX500和A超進行CCT測量。 EX500進行準分子激光消融,完成後測量剩餘角膜基質床厚度。對以上數據進行配對t檢驗。<br> 結果：術前 CCT 的平均測量值：A 超為527.9±34.3μm, EX500為528.5±34.6μm,兩者差異無統計學意義( t=1.736,P=0.085)。其中CCT>550μm組的平均測量值：A超為571.4±17.3μm,EX500為572.7±15.7μm,兩者差異無統計學意義( t=1.857, P=0.072)。 CCT 500~550μm組的平均測量值：A超為523.4±13.1μm,EX500為524.2±12.4μm,兩者差異無統計學意義(t=1.934,P=0.058)。CCT<500μm 組的平均測量值：A 超為484.5±9.8μm, EX500為483.7±8.9μm,兩者差異無統計學意義( t=1.395,P=0.174)。掀起角膜瓣後CCT的平均測量值：A超為401.3±34.2μm,EX500為393.4±38.9μm,兩者差異有統計學意義( t=6.669, P=0.000), EX500測量平均值明顯低于A超組。準分子激光消融完成後測量剩餘角膜基質床厚度的平均測量值：A超為332.6±38.3μm,EX500為307.3±37.1μm,兩者差異有統計學意義( t=17.165,P=0.000)。<br> 結論：對于LASIK患者術前角膜CCT的測量,EX500與A 超的平均測量值無明顯差異,但對于掀起角膜瓣後和準分子激光消融後角膜剩餘基質床厚度的測量,EX500測量值低于A超的測量值。
목적：탐토 EX500준분자격광치료의( EX500 Excimer Laser workstation )술중측량 LASIK 환자중앙각막후도( central conreal thickness,CCT)적준학성급림상의의。<br> 방법：대2013-01/06재아원행LASIK수술적63례120안환자분별용EX500화A형초성측후의진행CCT측량,안A초측량치>550μm,500~550μm,<500μm분위삼조。용Moria공사 SBK 미형각막도절개각막판후재차분별용EX500화A초진행CCT측량。 EX500진행준분자격광소융,완성후측량잉여각막기질상후도。대이상수거진행배대t검험。<br> 결과：술전 CCT 적평균측량치：A 초위527.9±34.3μm, EX500위528.5±34.6μm,량자차이무통계학의의( t=1.736,P=0.085)。기중CCT>550μm조적평균측량치：A초위571.4±17.3μm,EX500위572.7±15.7μm,량자차이무통계학의의( t=1.857, P=0.072)。 CCT 500~550μm조적평균측량치：A초위523.4±13.1μm,EX500위524.2±12.4μm,량자차이무통계학의의(t=1.934,P=0.058)。CCT<500μm 조적평균측량치：A 초위484.5±9.8μm, EX500위483.7±8.9μm,량자차이무통계학의의( t=1.395,P=0.174)。흔기각막판후CCT적평균측량치：A초위401.3±34.2μm,EX500위393.4±38.9μm,량자차이유통계학의의( t=6.669, P=0.000), EX500측량평균치명현저우A초조。준분자격광소융완성후측량잉여각막기질상후도적평균측량치：A초위332.6±38.3μm,EX500위307.3±37.1μm,량자차이유통계학의의( t=17.165,P=0.000)。<br> 결론：대우LASIK환자술전각막CCT적측량,EX500여A 초적평균측량치무명현차이,단대우흔기각막판후화준분자격광소융후각막잉여기질상후도적측량,EX500측량치저우A초적측량치。
AIM: To evaluate the accuracy of central conreal thickness ( CCT ) using EX500 Excimer Laser workstation (EX500) in laser in situ keratomileusis (LASIK) patients.METHODS:The CCT of 120 eyes (63 patients) who had LASIK between January 2013 and June 2013 were measured by A- scan and EX500. Three groups were classified: >550μm, 500 ~550μm, <500μm according the CCT value of A-scan. The CCT were measured again by corneal flap creating by moria SBK microkeratome. The thickness of the corneal bed stroma were measured by A-scan and EX500 after keratomileusis. All outcomes were analyzed with paired t test. <br> RESULTS: The average preoperative CCT value was 527. 9±34. 3μm measured by A-scan, 528. 5±34. 6μm measured by EX500. There was no significant difference between these two measurements (t=1. 736, P=0. 085). In group which CCT >550μm, the average preoperative CCT value was 571. 4±17. 3μm measured by A-scan, 572.7±15. 7μm measured by EX500. There was no significant difference between these two measurements (t=1. 857, P=0. 072). In group which CCT 500 ~ 550μm, the average preoperative CCT value was 523. 4±13. 1μm measured by A-scan, 524. 2±12. 4μm measured by EX500. There was no significant difference between these two measurements ( t=1. 934, P = 0. 058 ). In group which CCT <500μm, the average preoperative CCT value 484. 5±9.8μm measured by A-scan, 483. 7±8. 9μm measured by EX500. There was no significant difference between these two measurements (t=1. 395, P=0. 174). The average CCT value after corneal flap lifting was 401. 3 ± 34. 2μm measured by A-scan, 393. 4±38. 9μm measured by EX500. There was a significant difference between these two measurements ( t = 6. 669, P = 0. 000 ). The average thickness of the corneal bed stroma value after keratomileusis was 332. 6±38. 3μm measured by A-scan, 307. 3 ± 37. 1μm measured by EX500. There was a significant difference between these two measurements ( t=17. 165, P=0. 000). <br> CONCLUSION: There is no significant difference between preoperative CCT value measured by A-scan and EX500. After corneal flap lifting and keratomileusis, the CCT value measured by EX500 is smaller than measured by A-scan.
