中国实用眼科杂志
中國實用眼科雜誌
중국실용안과잡지
CHINESE JOURNAL OF PRACTICAL OPHTHALMOLOGY
2010年
11期
1232-1235
,共4页
张伟%马忠旭%刘汝瑜%张玲
張偉%馬忠旭%劉汝瑜%張玲
장위%마충욱%류여유%장령
人工晶状体%倾斜%偏心%像差%调制传递函数
人工晶狀體%傾斜%偏心%像差%調製傳遞函數
인공정상체%경사%편심%상차%조제전체함수
IOL%Tilt%Decentration%Aberration%MTF
目的 研究超声乳化白内障吸除术后球面和非球面人工晶状体(intraocularlens,IOL)的倾斜和偏心及其对高阶像差(higher-order aberrations,HOAs)和视觉质量的影响.方法 前瞻性研究.取50例单纯性老年性白内障患者60只眼,30只眼随机植入AMO公司的球面IOLSensar AR40e,30只眼植入非球面IOLTecnisZA9003.术后3到4个月,检测患者在5.0mm瞳孔下的HOAs以及5、10、15、20、25、30周每度(cycles per degree,cpd)空间频率下的调制传递函数(modulation transfer function,MTF).通过Scheimpflug像,测量IOL的倾斜与偏心.比较两组间倾斜度和偏心值、HOAs及各空间频率下去除低阶像差的MTF(MTF(HOA))值.使用多元回归分析来确定倾斜和偏心对HOAs和视觉质量的影响.结果 光学部倾斜AR40e组(2.99±0.94)°,ZA9003组(2.98±1.15)°.光学部偏心AR40e组(0.30±0.13)mm,ZA9003组(0.31±0.14)mm.组间倾斜和偏心差异无统计学意义(Z=-0.044,-0.525,P=0.965,0.600,Mann-WhitneyU检验).总4阶球差,AR40e组(0.366±0.163)μm大于ZA9003组(0.027±0.072)μm,差异有统计学意义(t=-10.386,P=0.000).ZA9003组在5.0mm瞳孔直径下各频段的MTF(HOA)值均高于AR40e组,有统计学意义(P＜0.05).两组IOL倾斜和偏心对各自的HOAs及各频段的MTF(HOA)值均无明显影响.结论 当IOL的倾斜和偏心在正常限度内时,不会危害非球面IOL对球差的补偿作用,不足以导致视觉质量的下降.
目的 研究超聲乳化白內障吸除術後毬麵和非毬麵人工晶狀體(intraocularlens,IOL)的傾斜和偏心及其對高階像差(higher-order aberrations,HOAs)和視覺質量的影響.方法 前瞻性研究.取50例單純性老年性白內障患者60隻眼,30隻眼隨機植入AMO公司的毬麵IOLSensar AR40e,30隻眼植入非毬麵IOLTecnisZA9003.術後3到4箇月,檢測患者在5.0mm瞳孔下的HOAs以及5、10、15、20、25、30週每度(cycles per degree,cpd)空間頻率下的調製傳遞函數(modulation transfer function,MTF).通過Scheimpflug像,測量IOL的傾斜與偏心.比較兩組間傾斜度和偏心值、HOAs及各空間頻率下去除低階像差的MTF(MTF(HOA))值.使用多元迴歸分析來確定傾斜和偏心對HOAs和視覺質量的影響.結果 光學部傾斜AR40e組(2.99±0.94)°,ZA9003組(2.98±1.15)°.光學部偏心AR40e組(0.30±0.13)mm,ZA9003組(0.31±0.14)mm.組間傾斜和偏心差異無統計學意義(Z=-0.044,-0.525,P=0.965,0.600,Mann-WhitneyU檢驗).總4階毬差,AR40e組(0.366±0.163)μm大于ZA9003組(0.027±0.072)μm,差異有統計學意義(t=-10.386,P=0.000).ZA9003組在5.0mm瞳孔直徑下各頻段的MTF(HOA)值均高于AR40e組,有統計學意義(P＜0.05).兩組IOL傾斜和偏心對各自的HOAs及各頻段的MTF(HOA)值均無明顯影響.結論 噹IOL的傾斜和偏心在正常限度內時,不會危害非毬麵IOL對毬差的補償作用,不足以導緻視覺質量的下降.
목적 연구초성유화백내장흡제술후구면화비구면인공정상체(intraocularlens,IOL)적경사화편심급기대고계상차(higher-order aberrations,HOAs)화시각질량적영향.방법 전첨성연구.취50례단순성노년성백내장환자60지안,30지안수궤식입AMO공사적구면IOLSensar AR40e,30지안식입비구면IOLTecnisZA9003.술후3도4개월,검측환자재5.0mm동공하적HOAs이급5、10、15、20、25、30주매도(cycles per degree,cpd)공간빈솔하적조제전체함수(modulation transfer function,MTF).통과Scheimpflug상,측량IOL적경사여편심.비교량조간경사도화편심치、HOAs급각공간빈솔하거제저계상차적MTF(MTF(HOA))치.사용다원회귀분석래학정경사화편심대HOAs화시각질량적영향.결과 광학부경사AR40e조(2.99±0.94)°,ZA9003조(2.98±1.15)°.광학부편심AR40e조(0.30±0.13)mm,ZA9003조(0.31±0.14)mm.조간경사화편심차이무통계학의의(Z=-0.044,-0.525,P=0.965,0.600,Mann-WhitneyU검험).총4계구차,AR40e조(0.366±0.163)μm대우ZA9003조(0.027±0.072)μm,차이유통계학의의(t=-10.386,P=0.000).ZA9003조재5.0mm동공직경하각빈단적MTF(HOA)치균고우AR40e조,유통계학의의(P＜0.05).량조IOL경사화편심대각자적HOAs급각빈단적MTF(HOA)치균무명현영향.결론 당IOL적경사화편심재정상한도내시,불회위해비구면IOL대구차적보상작용,불족이도치시각질량적하강.
Objective To study tilt and decentration of spherical and aspheric IOL implantation after phacoemulsification surgery and effect on higher-order aberrations (HOAs) and visual quality. Methods It was a prospective clinical study. A total of 60 eyes (50 patients) were divided into 2 groups randomly, of 30 eyes in each group, one group with Sensar AR40e (AMO), one group with Tecnis ZA9003 (AMO). Three to four months after surgery, higher-order aberrations (HOAs) and modulation transfer function (MTF) at six spatial frequencies (5, 10, 15, 20, 25, 30 cpd) were measured in 5.0mm pupil size. Tilt and decentration of the IOLs were measured using Scheimpflug photography. The tilt and decentration, HOAs and subtracted lower order aberration MTF (MTF(HOA)) were compared. The effect of tilt and decentration on HOAs and visual quality was assessed using multiple regression analysis. Results The mean optic tilt was (2.99± 0.94)° for AR40e group and (2.98± 1.15)° for the ZA9003 group. The mean optic decentration was (0.30± 0.13)mm, (0.31± 0.14)mm,respectively. No significant differences in IOL tilt or decentration were found (Z= -0.044, -0.525, P =0.965,0.600, Mann-Whitney U test). The total 4th order spherical aberration in AR40e group was larger than it was in ZA9003 group and the differences were statistically significant (t = -10.386, P =0.000). In 5.0mm pupil size,MTF (HOA) at all spatial frequencies in ZA9003 group were larger than they were in AR40e group and the differences were statistically significant (P ＜0.05). Tilt and decentration did not significantly affect HOAs and MTF (HOA) with either IOL. Conclusions When IOL tilt and decentration are within normal limits, hey do not compromise the correction of spherical aberration by the aspheric IOL and the amounts of tilt and decentration of both IOLs are not large enough to cause deterioration of visual quality.
