中华眼视光学与视觉科学杂志
中華眼視光學與視覺科學雜誌
중화안시광학여시각과학잡지
CHINESE JOURNAL OF OPTOMETRY OPHTHALMOLOGY AND VISUAL SCIENCE
2015年
5期
296-299
,共4页
角膜磨镶术,前弹力层下%飞秒激光%角膜%Pentacam
角膜磨鑲術,前彈力層下%飛秒激光%角膜%Pentacam
각막마양술,전탄력층하%비초격광%각막%Pentacam
Keratomileusis,sub Bowman%Femtosecond laser%Cornea%Pentacam
目的 比较飞秒激光及机械刀辅助的SBK术的角膜瓣厚度,探讨手术对角膜后表面稳定性的影响.方法 前瞻性非随机队列研究.选取郑州市第二人民医院2013年6月30日至12月31日飞秒激光及机械刀辅助的SBK术患者各200例(200眼),分别为飞秒激光组和机械刀组.通过A超测量角膜瓣厚度,Pentacam测量术前和术后1、3、6个月时角膜后表面中央曲率半径和最高曲率半径及角膜后表面顶点高度.检查指标的组间比较采用独立样本t检验,各组手术前后不同时间点间各测量指标的总体差异比较采用重复测量两因素方差分析,多重比较采用SNK-q检验.结果 机械刀组角膜瓣厚度为(104.4±10.3)1μm,飞秒激光组为(99.2±5.1)μm,差异存在统计学意义(t=5.365,P＜0.05).计算2组实际角膜瓣厚度与预设值间差值的绝对值,机械刀组为(6.38±5.21)μm,飞秒激光组为(2.17±2.69) μm,2组差异存在统计学意义(t=7.751,P＜0.01).2组的角膜后表面中央曲率半径、最陡曲率半径及顶点高度,同一组内各个时间点之间相比差异均无统计学意义.机械刀组术后1、3、6个月与飞秒激光组相应时间点的角膜后表面中央曲率半径、最陡曲率半径及后表面顶点高度比较差异均无统计学意义.结论 飞秒激光及机械刀辅助的SBK术角膜瓣厚度存在差异,2种手术术后角膜后表面曲率及顶点高度均保持良好的稳定性,且2种术式对角膜后表面稳定性的影响无显著性差异.
目的 比較飛秒激光及機械刀輔助的SBK術的角膜瓣厚度,探討手術對角膜後錶麵穩定性的影響.方法 前瞻性非隨機隊列研究.選取鄭州市第二人民醫院2013年6月30日至12月31日飛秒激光及機械刀輔助的SBK術患者各200例(200眼),分彆為飛秒激光組和機械刀組.通過A超測量角膜瓣厚度,Pentacam測量術前和術後1、3、6箇月時角膜後錶麵中央麯率半徑和最高麯率半徑及角膜後錶麵頂點高度.檢查指標的組間比較採用獨立樣本t檢驗,各組手術前後不同時間點間各測量指標的總體差異比較採用重複測量兩因素方差分析,多重比較採用SNK-q檢驗.結果 機械刀組角膜瓣厚度為(104.4±10.3)1μm,飛秒激光組為(99.2±5.1)μm,差異存在統計學意義(t=5.365,P＜0.05).計算2組實際角膜瓣厚度與預設值間差值的絕對值,機械刀組為(6.38±5.21)μm,飛秒激光組為(2.17±2.69) μm,2組差異存在統計學意義(t=7.751,P＜0.01).2組的角膜後錶麵中央麯率半徑、最陡麯率半徑及頂點高度,同一組內各箇時間點之間相比差異均無統計學意義.機械刀組術後1、3、6箇月與飛秒激光組相應時間點的角膜後錶麵中央麯率半徑、最陡麯率半徑及後錶麵頂點高度比較差異均無統計學意義.結論 飛秒激光及機械刀輔助的SBK術角膜瓣厚度存在差異,2種手術術後角膜後錶麵麯率及頂點高度均保持良好的穩定性,且2種術式對角膜後錶麵穩定性的影響無顯著性差異.
목적 비교비초격광급궤계도보조적SBK술적각막판후도,탐토수술대각막후표면은정성적영향.방법 전첨성비수궤대렬연구.선취정주시제이인민의원2013년6월30일지12월31일비초격광급궤계도보조적SBK술환자각200례(200안),분별위비초격광조화궤계도조.통과A초측량각막판후도,Pentacam측량술전화술후1、3、6개월시각막후표면중앙곡솔반경화최고곡솔반경급각막후표면정점고도.검사지표적조간비교채용독립양본t검험,각조수술전후불동시간점간각측량지표적총체차이비교채용중복측량량인소방차분석,다중비교채용SNK-q검험.결과 궤계도조각막판후도위(104.4±10.3)1μm,비초격광조위(99.2±5.1)μm,차이존재통계학의의(t=5.365,P＜0.05).계산2조실제각막판후도여예설치간차치적절대치,궤계도조위(6.38±5.21)μm,비초격광조위(2.17±2.69) μm,2조차이존재통계학의의(t=7.751,P＜0.01).2조적각막후표면중앙곡솔반경、최두곡솔반경급정점고도,동일조내각개시간점지간상비차이균무통계학의의.궤계도조술후1、3、6개월여비초격광조상응시간점적각막후표면중앙곡솔반경、최두곡솔반경급후표면정점고도비교차이균무통계학의의.결론 비초격광급궤계도보조적SBK술각막판후도존재차이,2충수술술후각막후표면곡솔급정점고도균보지량호적은정성,차2충술식대각막후표면은정성적영향무현저성차이.
Objective To compare the thickness of corneal flaps from femtosecond laser-assisted SBK versus mechanical microkeratome-assisted SBK and observe the stability of the posterior corneal surface.Methods This was a prospective nonrandom cohort study.The study included 200 patients (200 eyes) who underwent femtosecond laser-assisted SBK and 200 patients (200 eyes) who underwent mechanical microkeratome-assisted SBK from June 30 to December 31 in 2013 in the Second People's Hospital of Zhengzhou.Corneal flap thickness,central curvature,highest curvature and vertex altitude of the posterior corneal surface were measured by A-scan ultrasound and Pentacam before surgery and 1 month,3 months and 6 months after surgery.The resuhs were compared between the two groups with an independent samples t-test.The data were compared at different time points with a repeated measure two-factor analysis of variance and an SNK-q test.Results The mean thickness of the mechanical microkeratome group was 104.4±10.3 μm,and the mean flap thickness of the femtosecond laser group was 99.2.±5.1 μm.There was a significant difference between the two groups (t=5.365,P＜O.05).Absolute values of the differences between pre-surgical and postsurgical flap thickness were calculated,and the values for the mechanical microkeratome group and femtosecond laser group were 6.38±5.21 μm and 2.17±9..69 μm,respectively.There was a significant difference between the two groups (t=7.751,P＜0.01).Central curvature,the highest curvature and the vertex altitude of the posterior corneal surface were analyzed,and there were no significant differences at different time points or between femtosecond laser-assisted SBK and mechanical microkeratome-assisted SBK the two groups.Conclusion The thickness of corneal flaps have significant differences between curvatures and vertex altitude of the posterior corneal surface had good stability after the two surgery,and there was no significant difference in the influence that the two surgical methods had on the stability of the posterior corneal surface.
