中国实用眼科杂志
中國實用眼科雜誌
중국실용안과잡지
CHINESE JOURNAL OF PRACTICAL OPHTHALMOLOGY
2013年
1期
42-45
,共4页
薛庆%马忠旭%刘汝瑜%甄小妹
薛慶%馬忠旭%劉汝瑜%甄小妹
설경%마충욱%류여유%견소매
高阶像差%人工晶状体%调制传递函数%屈光地形图高度
高階像差%人工晶狀體%調製傳遞函數%屈光地形圖高度
고계상차%인공정상체%조제전체함수%굴광지형도고도
Higher-order aberration%Intraocular lens%Modulation transfer function%Height of refraction map
目的 分析白内障术后人工晶状体眼3mm、4mm、5mm不同瞳孔直径下影响屈光地形图高度的主要高阶像差,屈光地形图高度与调制传递函数(MTF)的作用关系.方法 临床病例自身对照研究.选取2011年8月至2012年3月在天津市眼科医院就诊的年龄相关性白内障术后患者50例(50只眼),行i-Trace视功能分析仪测量全眼高阶像差、MTF曲线、屈光地形图.使用Image-Pro-Plus 6.0图形分析软件进行屈光地形图高度(HRM)测量,对HRM与高阶像差及MTF值进行线性相关分析.结果 屈光地形图的高度随瞳孔直径增大而增大,MTF值随瞳孔直径增大而减小,3 mm瞳孔大小的情况下,彗差均方根值与屈光地形图的高度正相关(,=0.784,P＜0.05),4 mm瞳孔直径下,彗差的均方根值与屈光地形图的高度正相关(,=0.627,P＜0.05),5 mm瞳孔直径下屈光地形图高度与球差正相关(r=0.358,P＜0.05).3 mm瞳孔时HRM与MTF (tHOA-15 c/d)呈负相关(P＜0.05,r =-0.606)；4mm瞳孔时HRM与MTF(tHOA-15 c/d)呈负相关(r=-0.335,P＜0.05)5 mm瞳孔时HRM与MTF (tHOA)无相关.结论 3 mm、4 mm瞳孔直径下影响屈光地形图高度的主要高阶像差为彗差,球差在瞳孔直径为5 mm对屈光地形图高度开始有影响,但同时也会降低MTF值.
目的 分析白內障術後人工晶狀體眼3mm、4mm、5mm不同瞳孔直徑下影響屈光地形圖高度的主要高階像差,屈光地形圖高度與調製傳遞函數(MTF)的作用關繫.方法 臨床病例自身對照研究.選取2011年8月至2012年3月在天津市眼科醫院就診的年齡相關性白內障術後患者50例(50隻眼),行i-Trace視功能分析儀測量全眼高階像差、MTF麯線、屈光地形圖.使用Image-Pro-Plus 6.0圖形分析軟件進行屈光地形圖高度(HRM)測量,對HRM與高階像差及MTF值進行線性相關分析.結果 屈光地形圖的高度隨瞳孔直徑增大而增大,MTF值隨瞳孔直徑增大而減小,3 mm瞳孔大小的情況下,彗差均方根值與屈光地形圖的高度正相關(,=0.784,P＜0.05),4 mm瞳孔直徑下,彗差的均方根值與屈光地形圖的高度正相關(,=0.627,P＜0.05),5 mm瞳孔直徑下屈光地形圖高度與毬差正相關(r=0.358,P＜0.05).3 mm瞳孔時HRM與MTF (tHOA-15 c/d)呈負相關(P＜0.05,r =-0.606)；4mm瞳孔時HRM與MTF(tHOA-15 c/d)呈負相關(r=-0.335,P＜0.05)5 mm瞳孔時HRM與MTF (tHOA)無相關.結論 3 mm、4 mm瞳孔直徑下影響屈光地形圖高度的主要高階像差為彗差,毬差在瞳孔直徑為5 mm對屈光地形圖高度開始有影響,但同時也會降低MTF值.
목적 분석백내장술후인공정상체안3mm、4mm、5mm불동동공직경하영향굴광지형도고도적주요고계상차,굴광지형도고도여조제전체함수(MTF)적작용관계.방법 림상병례자신대조연구.선취2011년8월지2012년3월재천진시안과의원취진적년령상관성백내장술후환자50례(50지안),행i-Trace시공능분석의측량전안고계상차、MTF곡선、굴광지형도.사용Image-Pro-Plus 6.0도형분석연건진행굴광지형도고도(HRM)측량,대HRM여고계상차급MTF치진행선성상관분석.결과 굴광지형도적고도수동공직경증대이증대,MTF치수동공직경증대이감소,3 mm동공대소적정황하,혜차균방근치여굴광지형도적고도정상관(,=0.784,P＜0.05),4 mm동공직경하,혜차적균방근치여굴광지형도적고도정상관(,=0.627,P＜0.05),5 mm동공직경하굴광지형도고도여구차정상관(r=0.358,P＜0.05).3 mm동공시HRM여MTF (tHOA-15 c/d)정부상관(P＜0.05,r =-0.606)；4mm동공시HRM여MTF(tHOA-15 c/d)정부상관(r=-0.335,P＜0.05)5 mm동공시HRM여MTF (tHOA)무상관.결론 3 mm、4 mm동공직경하영향굴광지형도고도적주요고계상차위혜차,구차재동공직경위5 mm대굴광지형도고도개시유영향,단동시야회강저MTF치.
Objective To analyze higher-order aberration which influence the height of refraction map (HRM) and investigate the relationship between the HRM and modulation transfer function (MTF) in eyes implanted intraocular lens (IOL) at 3mm,4mm,5mm pupil diameter.Methods Fifty age-related cataract patients who were operated with phacoemulsification and IOL implantation were enrolled.The i-Trace was used to measure the higher-order aberration,MTF,and refraction map.The image-pro-plus 6.0 software was adopted to analyze the HRM.Results The HRM increased with pupil diameter,MTF decreased.The HRM was positive correlation with coma (P ＜0.05,r =0.784) at 3mm pupil diameter.The HRM was positive correlation with coma (P ＜0.05,r =0.627) at 4mm pupil diameter.The HRM was positive correlation with spherical aberration (P ＜0.05,r =0.358) at 5mm pupil diameter.The MTF (tHOA-15c/d) was negative correlation with HRM (r =-0.606,P ＜0.05) at 3mm pupil diameter and 4mm pupil diameter (r =-0.335,P ＜0.05),while there was no correlation at 5mm pupil diameter.Conclusions When pupil diameter is 3mm and 4mm,the main aberration influence HRM is coma.The spherical aberration begins to influence the HRM at 5mm pupil diameter,but it can decline MTF.
