AIM： To compare the difference and agreement of KR- lW and iTrace for measurement of high order aberrations.METHODS： KR-1W and iTrace were respectively used in a group of healthy people （40 volunteers, 32 eyes） to...AIM： To compare the difference and agreement of KR- lW and iTrace for measurement of high order aberrations.METHODS： KR-1W and iTrace were respectively used in a group of healthy people （40 volunteers, 32 eyes） to measure the high order aberration （HOA） of corneal, internal and total ocular. The clinical difference and agreement of two instruments were respectively evaluated by paired-samples 1-test and Bland-Altman analysis. RESULTS： The paired-samples t-test showed that the corneal HOA measured by the two instruments had no statistical differences （P〉0.05）; but the internal and total ocular HOA had significant statistical differences （P〈 0.05）, and the mean results measured by iTrace were higher than that of KR-1W. However, Bland-Altman analysis revealed that the HOA of corneal and internal were all in 95% limits of agreement; and just one point of total ocular HOA was beyond the 95% limits of agreement. CONCLUSION： KR-1W and iTrace were consistent well in the measurement of corneal, internal and total ocular HOA, especially for the cornea.展开更多
目的比较iTrace像差仪和Pentacam系统分别引导的个性化非球面人工晶状体（IOL）植人后的视觉质量，探讨分别利用这2种仪器引导IOL植入使术后全眼球差为＋0．1μm的可行性。方法前瞻性病例研究。分别应用Pentacam系统及iTrace像差仪对行...目的比较iTrace像差仪和Pentacam系统分别引导的个性化非球面人工晶状体（IOL）植人后的视觉质量，探讨分别利用这2种仪器引导IOL植入使术后全眼球差为＋0．1μm的可行性。方法前瞻性病例研究。分别应用Pentacam系统及iTrace像差仪对行白内障超声乳化联合非球面IOL植入术的年龄相关性白内障患者55例（58眼）术前1d测量6mm瞳孔直径下的角膜球差（Z4^0），分为iTrace组（31眼）和Pentacam组（27眼）。据测量结果分别为患者植入Tecnis IOL、AcrySof IQ IOL、ADAPT-AOIOL，使患者术后全眼球差的预测值在0．05-0．15μm范围内。术后3个月观察患者的裸眼视力（UCVA）、最佳矫正视力（BCVA）、6mm瞳孔直径下的调制传递函数（MTF）、全眼及内眼C4^0。对相关数据采用配对t检验和成组t检验进行分析。结果①术后2组患者的UCVA、BCVA比较．差异均无统计学意义（t=0．83、0．37，P〉0．05）。②所有患者术前预测的6mm瞳孔直径的全眼球差值与＋0．1μm比较差异均无统计学意义（t-1．70、0．64，P〉0．05）；术后6mm瞳孔直径时2组实际全眼球差与＋0．1μm比较，iTrace组差异无统计学意义（t=0．58．P〉0．05），Pentacam组差异有统计学意义（t=2．33，P〈0．05）。③2组患者术前全眼球差预测值与术后全眼球差实际值比较，差异均无统计学意义（t=-1．55、-2．04，P〉0．05）；2组患者术后实际内眼球差与IOL本身的球差值比较，差异均无统计学意义（t=-1．55、0．73，P〉0．05）。2组患者术后全眼球差实际值比较差异无统计学意义（t=1．52，P〉0．05）。④2组患者术后6mm瞳孔时在5、10、15、20、25、30c／d6种空间频率下，高阶像差的MTF值比较差异无统计学意义（t=0．88、0．47、0．34、0．02、-0．57、-0．23，P〉0．05）；球差的MTF值比较差异亦无统计学意义（t=-0．37、-0．46、-0．43、-0．39、-0．68、-1．展开更多
AIM:To compare the postoperative binocular visual performance with an iTrace analyzer following femtosecond laser-assisted cataract surgery(FLACS)combined with bilateral implantation of two different types of diffract...AIM:To compare the postoperative binocular visual performance with an iTrace analyzer following femtosecond laser-assisted cataract surgery(FLACS)combined with bilateral implantation of two different types of diffractive trifocal intraocular lenses(IOL).METHODS:During this retrospective observational study,patients who received bilateral FLACS combined with implantation of two different types of diffractive trifocal IOLs were evaluated.According to the IOLs’different types and design,the patients were divided into AT LISA tri839MP group(tri839 group)and AcrySof PanOptix TFNT00 group(TFNT group).Study parameters included preoperative and postoperative uncorrected distance visual acuity(UDVA)at 5 m,uncorrected near visual acuity(UNVA)at 30 cm and 40 cm,uncorrected intermediate visual acuity(UIVA)at 60 cm and 80 cm,postoperative refractive status,objective visual qualities and total high order aberrations(HOAs)postoperatively.The postoperative complications were also recorded.RESULTS:Totally 56 eyes of 28 patients(tri839 group,n=26;TFNT group,n=30)were included.Preoperative baseline characteristics between groups were not statistically significantly different.UDVA was not significantly different between groups except for 1wk follow-up due to the postoperative corneal edema.TFNT group showed statistically significant better UNIA at 60 cm than tri839 group at the 1wk(0.05±0.19 vs 0.15±0.10 logMAR,P=0.013),1mo(0.05±0.12 vs 0.15±0.09 logMAR,P=0.001)and 3mo(0.04±0.12 vs 0.15±0.11 logMAR,P=0.001)follow-up,while tri839 group showed statistically significant better UNIA at 80 cm than TFNT group at the 1d(0.14±0.15 vs 0.20±0.14 logMAR,P=0.041)and 1mo(0.09±0.07 vs 0.14±0.10 logMAR,P=0.042)follow-up.Postoperative refractive status showed stable at every visit.Modulated transfer function(MTF)values and strehl ratio(SR)values were improved and HOAs were lower significantly after surgery.CONCLUSION:FLACS with bilateral implantations of both tri839 and TFNT00 can achieve satisfactory natural whole-course vision,high po展开更多
文摘AIM： To compare the difference and agreement of KR- lW and iTrace for measurement of high order aberrations.METHODS： KR-1W and iTrace were respectively used in a group of healthy people （40 volunteers, 32 eyes） to measure the high order aberration （HOA） of corneal, internal and total ocular. The clinical difference and agreement of two instruments were respectively evaluated by paired-samples 1-test and Bland-Altman analysis. RESULTS： The paired-samples t-test showed that the corneal HOA measured by the two instruments had no statistical differences （P〉0.05）; but the internal and total ocular HOA had significant statistical differences （P〈 0.05）, and the mean results measured by iTrace were higher than that of KR-1W. However, Bland-Altman analysis revealed that the HOA of corneal and internal were all in 95% limits of agreement; and just one point of total ocular HOA was beyond the 95% limits of agreement. CONCLUSION： KR-1W and iTrace were consistent well in the measurement of corneal, internal and total ocular HOA, especially for the cornea.
文摘目的比较iTrace像差仪和Pentacam系统分别引导的个性化非球面人工晶状体（IOL）植人后的视觉质量，探讨分别利用这2种仪器引导IOL植入使术后全眼球差为＋0．1μm的可行性。方法前瞻性病例研究。分别应用Pentacam系统及iTrace像差仪对行白内障超声乳化联合非球面IOL植入术的年龄相关性白内障患者55例（58眼）术前1d测量6mm瞳孔直径下的角膜球差（Z4^0），分为iTrace组（31眼）和Pentacam组（27眼）。据测量结果分别为患者植入Tecnis IOL、AcrySof IQ IOL、ADAPT-AOIOL，使患者术后全眼球差的预测值在0．05-0．15μm范围内。术后3个月观察患者的裸眼视力（UCVA）、最佳矫正视力（BCVA）、6mm瞳孔直径下的调制传递函数（MTF）、全眼及内眼C4^0。对相关数据采用配对t检验和成组t检验进行分析。结果①术后2组患者的UCVA、BCVA比较．差异均无统计学意义（t=0．83、0．37，P〉0．05）。②所有患者术前预测的6mm瞳孔直径的全眼球差值与＋0．1μm比较差异均无统计学意义（t-1．70、0．64，P〉0．05）；术后6mm瞳孔直径时2组实际全眼球差与＋0．1μm比较，iTrace组差异无统计学意义（t=0．58．P〉0．05），Pentacam组差异有统计学意义（t=2．33，P〈0．05）。③2组患者术前全眼球差预测值与术后全眼球差实际值比较，差异均无统计学意义（t=-1．55、-2．04，P〉0．05）；2组患者术后实际内眼球差与IOL本身的球差值比较，差异均无统计学意义（t=-1．55、0．73，P〉0．05）。2组患者术后全眼球差实际值比较差异无统计学意义（t=1．52，P〉0．05）。④2组患者术后6mm瞳孔时在5、10、15、20、25、30c／d6种空间频率下，高阶像差的MTF值比较差异无统计学意义（t=0．88、0．47、0．34、0．02、-0．57、-0．23，P〉0．05）；球差的MTF值比较差异亦无统计学意义（t=-0．37、-0．46、-0．43、-0．39、-0．68、-1．
基金Supported by Medical Science and Technology Research Foundation Project of Guangdong Province(No.C2021087)The Scientific Research Foundation Project of Guangzhou Aier Eye Hospital,Jinan University(No.GA2023004).
文摘AIM:To compare the postoperative binocular visual performance with an iTrace analyzer following femtosecond laser-assisted cataract surgery(FLACS)combined with bilateral implantation of two different types of diffractive trifocal intraocular lenses(IOL).METHODS:During this retrospective observational study,patients who received bilateral FLACS combined with implantation of two different types of diffractive trifocal IOLs were evaluated.According to the IOLs’different types and design,the patients were divided into AT LISA tri839MP group(tri839 group)and AcrySof PanOptix TFNT00 group(TFNT group).Study parameters included preoperative and postoperative uncorrected distance visual acuity(UDVA)at 5 m,uncorrected near visual acuity(UNVA)at 30 cm and 40 cm,uncorrected intermediate visual acuity(UIVA)at 60 cm and 80 cm,postoperative refractive status,objective visual qualities and total high order aberrations(HOAs)postoperatively.The postoperative complications were also recorded.RESULTS:Totally 56 eyes of 28 patients(tri839 group,n=26;TFNT group,n=30)were included.Preoperative baseline characteristics between groups were not statistically significantly different.UDVA was not significantly different between groups except for 1wk follow-up due to the postoperative corneal edema.TFNT group showed statistically significant better UNIA at 60 cm than tri839 group at the 1wk(0.05±0.19 vs 0.15±0.10 logMAR,P=0.013),1mo(0.05±0.12 vs 0.15±0.09 logMAR,P=0.001)and 3mo(0.04±0.12 vs 0.15±0.11 logMAR,P=0.001)follow-up,while tri839 group showed statistically significant better UNIA at 80 cm than TFNT group at the 1d(0.14±0.15 vs 0.20±0.14 logMAR,P=0.041)and 1mo(0.09±0.07 vs 0.14±0.10 logMAR,P=0.042)follow-up.Postoperative refractive status showed stable at every visit.Modulated transfer function(MTF)values and strehl ratio(SR)values were improved and HOAs were lower significantly after surgery.CONCLUSION:FLACS with bilateral implantations of both tri839 and TFNT00 can achieve satisfactory natural whole-course vision,high po
