CAJ | 학술논문

目的使用OQAS系统和i-Trace像差仪比较超声乳化白内障摘除联合植入非球面工晶状体(IOL)在不同空间频率下的调制传递函数(MTF),并分析客观散射指数(OSI)与全眼高阶像差的相关性.方法回顾性病例系列研究.对2012年3～12月在天津市眼科医院收集年龄相关性白内障术后植入非球面IOL至少3个月的患者50例(60只眼),使用OQAS系统测量患者4 mm瞳孔下的眼内客观OSI和在空间频率5、10、15、20、25 cpd下的MTF值;使用i-Trace像差仪测量患者4 mm瞳孔下的全眼高阶像差和在空间频率5、10、15、20、25 cpd下的MTF值.并按照眼内客观OSI的大小将患者分为两组:A组21只眼(OSI≤0.8),B组39只眼(OSI＞0.8),对各组数据行正态检验后,对A、B组MTF进行配对样本t检验,并对眼内客观OSI和全眼高阶像差进行线性相关分析比较.结果 4 mm瞳孔下,A组的OQAS和i-Trace测量的MTF在5、10、15 cpd下的差异没有统计学意义(P＞0.05),在20、25 cpd下的差异有统计学意义(P＜0.05);B组的OQAS和i-Trace测量的MTF在5、10、15、20、25 cpd下的差异均有统计学意义(P＜0.05).两组客观OSI与全眼的高阶像差之间差异无统计学意义(P＞0.05).结论当人工晶状体眼的OSI较小时,OQAS双通道系统和i-Trace像差仪在评估人工晶状体眼的视觉质量时具有较好的一致性,当人工晶状体眼的散射值较大时,i-Trace像差仪高估了人工晶状体眼的视觉质量;人工晶状体眼的眼内散射值和全眼的高阶像差之间没有相关性.
목적 사용OQAS계통화i-Trace상차의비교초성유화백내장적제연합식입비구면공정상체(IOL)재불동공간빈솔하적조제전체함수(MTF),병분석객관산사지수(OSI)여전안고계상차적상관성.방법 회고성병례계렬연구.대2012년3～12월재천진시안과의원수집년령상관성백내장술후식입비구면IOL지소3개월적환자50례(60지안),사용OQAS계통측량환자4 mm동공하적안내객관OSI화재공간빈솔5、10、15、20、25 cpd하적MTF치;사용i-Trace상차의측량환자4 mm동공하적전안고계상차화재공간빈솔5、10、15、20、25 cpd하적MTF치.병안조안내객관OSI적대소장환자분위량조:A조21지안(OSI≤0.8),B조39지안(OSI＞0.8),대각조수거행정태검험후,대A、B조MTF진행배대양본t검험,병대안내객관OSI화전안고계상차진행선성상관분석비교.결과 4 mm동공하,A조적OQAS화i-Trace측량적MTF재5、10、15 cpd하적차이몰유통계학의의(P＞0.05),재20、25 cpd하적차이유통계학의의(P＜0.05);B조적OQAS화i-Trace측량적MTF재5、10、15、20、25 cpd하적차이균유통계학의의(P＜0.05).량조객관OSI여전안적고계상차지간차이무통계학의의(P＞0.05).결론 당인공정상체안적OSI교소시,OQAS쌍통도계통화i-Trace상차의재평고인공정상체안적시각질량시구유교호적일치성,당인공정상체안적산사치교대시,i-Trace상차의고고료인공정상체안적시각질량;인공정상체안적안내산사치화전안적고계상차지간몰유상관성.
Objective To compare the MTF measured by the double-pass method and i-Trace aberrometer.Methods It was a retrospective case series study.The aspheric acrylic intraocular lenses were implanted into 60 eyes in cataract surgery,Straylight on the retina and MTF at different frequrencies of the eyes at 4mm pupil size was measured with double-pass system; aberration and MTF at different frequencies of the eyes at 4mm pupil size was measured with i-Trace aberrometer.The patients were divided into two groups according OSI:group A,21 eyes (OSI≤0.8); group B,39 eyes (OSI＞0.8).The Difference between groups was evaluated by paired t test.Relationship between straylight parameter (OSI) and aberration was evaluated by Pearson correlation analysis.Results At 4 mm pupil size,there was no significant difference between the MTF in group A at 5,10,15cpd (P ＞0.05).There was a significant differences between the MTF in group B at 5,10,15,20,25cpd (P ＜0.05).There was no correlation between the OSI and aberration.Conclusions At 4 mm pupil size,when the straylight is small,both the double-pass method and i-Trace aberrometer can evaluate the MTF well,when the straylight iss bigger,the i-Trace aberrometer overestimated the MTF.There is no correlation between the OSI and aberration.