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
2013年
6期
339-342
,共4页
胡亮%余鹏%陈佳%谭维娜%孙西宇%瞿佳
鬍亮%餘鵬%陳佳%譚維娜%孫西宇%瞿佳
호량%여붕%진가%담유나%손서우%구가
眼压%角膜中央厚度%球差%非球面性%Q值%近视
眼壓%角膜中央厚度%毬差%非毬麵性%Q值%近視
안압%각막중앙후도%구차%비구면성%Q치%근시
Intraocular pressure%Central corneal thickness%Spherical aberration%Asphericity%Q value%Myopia
目的 研究低中度近视人群眼压、角膜中央厚度与角膜球差及非球面性之间的相关性.方法 横断面研究.对108例(216眼)低中度近视患者应用Pentacam HR眼前节分析仪进行眼前节参数测量,得到角膜前后表面不同象限(上、下、鼻、颞侧,水平、垂直方向)及不同分析直径(6、7、8、9 mm)范围的角膜非球面性参数——Q值及角膜球差.分别使用非接触式眼压仪及A型超声角膜测厚仪进行眼压及角膜中央厚度的测量.数据采用Pearson相关性分析、独立样本t检验及单因素方差分析进行处理.结果 低度组眼压与垂直方向角膜前表面Q值有相关性(右眼:r=-0.30,P＜0.05;左眼:r=-0.34,P＜0.05),与角膜前表面球差无相关性;中度近视组眼压与角膜前表面球差有相关性(右眼:r=0.31,P＜0.05;左眼:r=0.37,P＜0.01),与角膜前表面Q值无相关性.仅低度近视组角膜中央厚度与颞侧角膜前表面Q值有相关性(右眼:r=0.47,P＜0.01;左眼:r=0.29,P＜0.05).结论 低度近视者眼压可导致角膜前表面非球面性减弱,中度近视者眼压与角膜前表面球差呈正相关,产生这种差异的原因可能与角膜本身的补偿机制有关.
目的 研究低中度近視人群眼壓、角膜中央厚度與角膜毬差及非毬麵性之間的相關性.方法 橫斷麵研究.對108例(216眼)低中度近視患者應用Pentacam HR眼前節分析儀進行眼前節參數測量,得到角膜前後錶麵不同象限(上、下、鼻、顳側,水平、垂直方嚮)及不同分析直徑(6、7、8、9 mm)範圍的角膜非毬麵性參數——Q值及角膜毬差.分彆使用非接觸式眼壓儀及A型超聲角膜測厚儀進行眼壓及角膜中央厚度的測量.數據採用Pearson相關性分析、獨立樣本t檢驗及單因素方差分析進行處理.結果 低度組眼壓與垂直方嚮角膜前錶麵Q值有相關性(右眼:r=-0.30,P＜0.05;左眼:r=-0.34,P＜0.05),與角膜前錶麵毬差無相關性;中度近視組眼壓與角膜前錶麵毬差有相關性(右眼:r=0.31,P＜0.05;左眼:r=0.37,P＜0.01),與角膜前錶麵Q值無相關性.僅低度近視組角膜中央厚度與顳側角膜前錶麵Q值有相關性(右眼:r=0.47,P＜0.01;左眼:r=0.29,P＜0.05).結論 低度近視者眼壓可導緻角膜前錶麵非毬麵性減弱,中度近視者眼壓與角膜前錶麵毬差呈正相關,產生這種差異的原因可能與角膜本身的補償機製有關.
목적 연구저중도근시인군안압、각막중앙후도여각막구차급비구면성지간적상관성.방법 횡단면연구.대108례(216안)저중도근시환자응용Pentacam HR안전절분석의진행안전절삼수측량,득도각막전후표면불동상한(상、하、비、섭측,수평、수직방향)급불동분석직경(6、7、8、9 mm)범위적각막비구면성삼수——Q치급각막구차.분별사용비접촉식안압의급A형초성각막측후의진행안압급각막중앙후도적측량.수거채용Pearson상관성분석、독립양본t검험급단인소방차분석진행처리.결과 저도조안압여수직방향각막전표면Q치유상관성(우안:r=-0.30,P＜0.05;좌안:r=-0.34,P＜0.05),여각막전표면구차무상관성;중도근시조안압여각막전표면구차유상관성(우안:r=0.31,P＜0.05;좌안:r=0.37,P＜0.01),여각막전표면Q치무상관성.부저도근시조각막중앙후도여섭측각막전표면Q치유상관성(우안:r=0.47,P＜0.01;좌안:r=0.29,P＜0.05).결론 저도근시자안압가도치각막전표면비구면성감약,중도근시자안압여각막전표면구차정정상관,산생저충차이적원인가능여각막본신적보상궤제유관.
Objective To investigate the correlation between intraocular pressure (IOP) and central corneal thickness (CCT) and corneal spherical aberration as well as asphericity.Methods This was a cross-sectional study.Two hundred and sixteen eyes in 108 mild-to-moderate myopia patients were examined with the Pentacam HR anterior segment tomographer.The aspheric coefficient (Q value) and corneal spherical aberration results from the different quadrants in both the anterior and posterior corneas (including superior,inferior,nasal,temporal,horizontal and vertical directions)and the data 6,7,8 and 9 mm eccentric diameters were obtained.IOP and CCT were measured by a non-contact tonometer and A-scan ultrasonic corneal pachymeter,respectively.Patients were divided into 2 groups based on the degree of myopia.The relationship between the IOP with and without CCT and corneal spherical aberration as well as asphericity were analyzed.Data was processed using a Pearson correlation analysis,independent samples t test and one-way ANOVA.Results IOP was significantly correlated with anterior corneal asphericity (r=-0.30,P＜0.05 for right eyes; r=-0.34,P＜0.05 for left eyes),but was not significantly correlated with anterior corneal spherical aberration in the mild myopia group.In the moderate myopia group,although IOP was significantly correlated with anterior corneal spherical aberration (r=0.31,P＜0.05 for right eye; r=0.37,P＜0.01 for left eye),there was no significant correlation with anterior corneal Q value.CCT was only significantly correlated with the temporal corneal Q value (r=0.47,P＜0.01 for right eyes; r=0.29,P＜0.05 for left eyes).Conclusion IOP induced a decrease in anterior corneal asphericity in mild myopes,however,it was positively correlated with anterior corneal spherical aberration.The reason for the difference may be related to the compensation mechanism of the cornea itself.
