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
2011年
1期
9-12
,共4页
翟国光%邱岩%白华%李耀宇
翟國光%邱巖%白華%李耀宇
적국광%구암%백화%리요우
亮度%眼球旋转%瞳孔中心%角膜磨镶术,激光原位%虹膜定位
亮度%眼毬鏇轉%瞳孔中心%角膜磨鑲術,激光原位%虹膜定位
량도%안구선전%동공중심%각막마양술,격광원위%홍막정위
Luminance%Cyclotorsion%Pupil centre%Keratomileusis,laser in situ%Iris-registration
目的 探讨准分子激光原位角膜磨镶术(LASIK)术中光线亮度改变对眼球旋转角度和瞳孔中心的影响.方法 前瞻性病例系列研究.LASIK患者140例(268眼),术中通过调整激光机灯光亮度,以虹膜定位技术(VisxStar-S4-IR)分别测出高亮度和低亮度下眼球的旋转角度、瞳孔大小、瞳孔直径及瞳孔中心位置,并进行比较分析.在与基础眼位相比及亮度变化之间,眼球旋转方向在两眼的差异采用卡方检验;眼球旋转角度、瞳孔直径改变在两种亮度状态下的差异采用独立样本t检验.结果 灯光亮度改变后,268眼中有259眼(占96.6%)发生了眼球旋转,而且主要为外旋(180眼,69.5%),其中有26眼(占10.0%)眼球旋转方向发生改变.大部分眼(247眼,占95.4%)旋转角度≤2°,且与基础眼位比较,右眼与左眼低亮度下的旋转角度大于高亮度(t=2.375、2.146,P均＜0.05).在高亮度和低亮度下,患眼瞳孔直径分别为2.00～4.10 mm和2.40～5.80 mm,差异有统计学意义(t=2.1l,P＜0.05).在高亮度和低亮度下,与术前检查结果相比,约2/3眼的瞳孔中心均向鼻上方偏移,但两种光亮度之间瞳孔中心的偏移差异无统计学意义.结论 准分子激光屈光手术中,亮度的改变会引起眼球旋转和瞳孔中心位置的改变,从而影响手术矫正的准确性.
目的 探討準分子激光原位角膜磨鑲術(LASIK)術中光線亮度改變對眼毬鏇轉角度和瞳孔中心的影響.方法 前瞻性病例繫列研究.LASIK患者140例(268眼),術中通過調整激光機燈光亮度,以虹膜定位技術(VisxStar-S4-IR)分彆測齣高亮度和低亮度下眼毬的鏇轉角度、瞳孔大小、瞳孔直徑及瞳孔中心位置,併進行比較分析.在與基礎眼位相比及亮度變化之間,眼毬鏇轉方嚮在兩眼的差異採用卡方檢驗;眼毬鏇轉角度、瞳孔直徑改變在兩種亮度狀態下的差異採用獨立樣本t檢驗.結果 燈光亮度改變後,268眼中有259眼(佔96.6%)髮生瞭眼毬鏇轉,而且主要為外鏇(180眼,69.5%),其中有26眼(佔10.0%)眼毬鏇轉方嚮髮生改變.大部分眼(247眼,佔95.4%)鏇轉角度≤2°,且與基礎眼位比較,右眼與左眼低亮度下的鏇轉角度大于高亮度(t=2.375、2.146,P均＜0.05).在高亮度和低亮度下,患眼瞳孔直徑分彆為2.00～4.10 mm和2.40～5.80 mm,差異有統計學意義(t=2.1l,P＜0.05).在高亮度和低亮度下,與術前檢查結果相比,約2/3眼的瞳孔中心均嚮鼻上方偏移,但兩種光亮度之間瞳孔中心的偏移差異無統計學意義.結論 準分子激光屈光手術中,亮度的改變會引起眼毬鏇轉和瞳孔中心位置的改變,從而影響手術矯正的準確性.
목적 탐토준분자격광원위각막마양술(LASIK)술중광선량도개변대안구선전각도화동공중심적영향.방법 전첨성병례계렬연구.LASIK환자140례(268안),술중통과조정격광궤등광량도,이홍막정위기술(VisxStar-S4-IR)분별측출고량도화저량도하안구적선전각도、동공대소、동공직경급동공중심위치,병진행비교분석.재여기출안위상비급량도변화지간,안구선전방향재량안적차이채용잡방검험;안구선전각도、동공직경개변재량충량도상태하적차이채용독립양본t검험.결과 등광량도개변후,268안중유259안(점96.6%)발생료안구선전,이차주요위외선(180안,69.5%),기중유26안(점10.0%)안구선전방향발생개변.대부분안(247안,점95.4%)선전각도≤2°,차여기출안위비교,우안여좌안저량도하적선전각도대우고량도(t=2.375、2.146,P균＜0.05).재고량도화저량도하,환안동공직경분별위2.00～4.10 mm화2.40～5.80 mm,차이유통계학의의(t=2.1l,P＜0.05).재고량도화저량도하,여술전검사결과상비,약2/3안적동공중심균향비상방편이,단량충광량도지간동공중심적편이차이무통계학의의.결론 준분자격광굴광수술중,량도적개변회인기안구선전화동공중심위치적개변,종이영향수술교정적준학성.
Objective Discuss the effect of luminance on cyclotorsion and pupil center during Laser in situ keratomileusis (LASIK). Methods Prospective case series study. One hundred and forty subjects (268 eyes) were selected to receive LASIK operation. During the operation, the brightness of laser lighter was adjusted, rotation angle of eyeballs, diameter and position of pupil centre under high brightness and low brightness was tested using Visx S4 IR examer laser chi-square test and independent samples t test was used. Results Two hundred and fifty-nine eyes (96.6%) rotated, and mainly (69.5%) was extorsion after brightness adjusted. Furthermore, direction-changing occurred in 26 eyes. The rotation angle in most eyes (247 eyes, counted 95.4%) were within 2°. Under the high brightness and dark brightness, pupil centre of most eyes shifting naso-upside, but the discrepancy under different brightness with no statistic difference. Conclusion During LASIK procedures, luminance brightness will cause cyclotorsion and position shifting of pupil centre, therefore, brightness will affect the accuracy of LASIK.
