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Changes in visual performance after implantation of different intraocular lenses

International Journal of Ophthalmology(English edition) 2024年第7期17卷 1273-1282页

作者： Bo-Wen Li Hao Huang Man-Sha Huang Shuang-Lin Guo Lu Gao Yu-Ying Zeng Lu Cheng Si-Yang Yao Jian-Qiang Lin Lin Liu Ye Yang Xiao-Ming Lu Hao Cheng Department of Ophthalmology the First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhou 510000Guangdong ProvinceChina Eye Center of Xiangya Hospital Hunan Key Laboratory of OphthalmologyCentral South UniversityChangsha 410008Hunan ProvinceChina Department of Ophthalmology Zhuzhou Hospital Affiliated to Xiangya School of MedicineCentral South UniversityZhuzhou 412000Hunan ProvinceChina State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangdong Provincial Key Laboratory of Ophthalmology and Visual ScienceGuangzhou 510060Guangdong ProvinceChina Department of Ophthalmology Guangzhou Red Cross HospitalJinan UniversityGuangzhou 510000Guangdong ProvinceChina AIER Eye Hospital Jinan UniversityGuangzhou 510180Guangdong ProvinceChina

AIM:To evaluate the trending visual performance of different intraocular lenses(IOLs)over time after ***:Ninety-one patients received cataract surgery with implantations of monofocal(Mon)IOLs,segmental refractive(SegRef)IOLs,diffractive(Dif)IOLs,and extendeddepth-of-focus(EDoF)IOLs were *** aberrations and optical quality collected with iTrace and OQAS within postoperative 6mo were followed and ***:Most of the visual parameters improved over the postoperative *** postoperative visual acuity(POVA)of the Mon IOL,SegRef IOL,and EDoF IOL groups achieved relative stability in earlier states compared with the Dif IOL ***,the overall visual performance of the 3 IOLs continued to upturn in small extents within the postoperative *** optical quality initially improved in the EDoF IOL group,then in the Mon IOL,SegRef IOL,and Dif IOL *** and objective visual performance of the Mon IOL and EDoF IOL groups,as well as POVA and visual quality of the Dif IOL group,improved in the postoperative 1mo and *** the postoperative 6mo,gradual improvements were observed in the visual acuity and objective visual performance of the SegRef IOL group,as well as in the postoperative optical quality of the Dif IOL ***:The visual performance is different among eyes implanted with different *** findings of the current study provide a potential reference for ophthalmologists to choose suitable IOLs for cataract patients in a personalized solution.

关键词： intraocular lenses visual performance changing characteristics high-order wavefront aberration

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visual performance after conventional LASIK and wavefront-guided LASIK with iris-registration:results at 1 year

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International Journal of Ophthalmology(English edition) 2013年第4期6卷 498-504页

作者： Jing Zhang Yue-Hua Zhou Rui Li Lei Tian Ophthalmic Center Beijing Tongren HospitalCapital Medical UniversityBeijing Ophthalmology and Visual Sciences Key Lab

AIM:To compare visual performance of wavefrontguided laser in situ keratomileusis(LASIK) with iris-registration(Wg-LASIK group) and conventional LASIK(LASIK group) one year after surgery and analyze the correlation between wavefront aberrations and visual performance.·METHODS:Eight hundred and fifty-two myopic eyes of 430 patients were enrolled in this prospective study and divided into two groups:Wg-LASIK group(436eyes) and LASIK group(416 eyes).A Wavescan Wavefront aberrometer was used to analyze Zernike coefficients and the root-mean-square(RMS) of higher order aberrations,and Optec 6500 visual function instrument was used to measure contrast sensitivity(CS)before and 3,6,12 months after surgery.·RESULTS:The mean spherical equivalent(SE) in WgLASIK group was significantly better than those in LASIK group one year after surgery(P =0.024).Wg-LASIK eyes showed better CS values than LASIK eyes at all spatial frequencies with and without glare after surgery(P allvisual performance is got in Wg-LASIK group compared with LASIK group 1year after surgery,and the Wg-LASIK is particularly suitable for eyes with high-magnitude RMSh.

关键词： aberration contrast sensitivity visual performance laser in situ keratomileusis

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visual performance with accommodating and multifocal intraocular lenses

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International Journal of Ophthalmology(English edition) 2017年第2期10卷 235-240页

作者： Jie Lan Yu-Sen Huang Yun-Hai Dai Xiao-Ming Wu Jia-Jun Sun Li-Xin Xie Qingdao University Medical College Qingdao 266071Shandong ProvinceChina Qingdao Eye Hospital Shandong Eye InstituteShandong Academy of Medical SciencesQingdao 266071Shandong ProvinceChina

AIM： To compare the visual functional outcomes with accommodating and multifocal intraocular lenses（IOLs）.METHODS： Our retrospective comparative study included 51 patients（60 eyes） received implantation of an accommodating IOL（Tetraflex;16 patients,20 eyes）,a refractive multifocal IOL（Re Zoom;18 patients,20 eyes）,or a diffractive multifocal IOL（ZMA00;17 patients,20 eyes）.Subjective refraction,visual acuity,contrast sensitivity（CS）,intraocular aberration,and subjective photic phenomena were detected at 3mo after ***： The spherical equivalent in the three groups was-0.38±0.54 D,0.14±0.56 D,and 0.35±0.41 D,*** statistically significant differences were found in uncorrected and corrected distance visual acuity and uncorrected intermediate visual acuity among the groups（P=0.39）.The Re Zoom group had significantly better distance-corrected intermediate visual acuity than the ZMA00 group（P=0.003）.The ZMA00 group had significantly better near visual acuity than the other groups（P〈0.05）.Better contrast sensitivity values were observed in the Tetraflex group under most of the spatial frequencies conditions（P=0.025）.The total aberration was lowest in the ZMA00 group（P=0.000）,and the spherical aberration was highest in the Tetraflex group（P=0.000）.The three groups had similar frequency of ghosting and glare,and the Tetraflex group had a low rate of halos（P=0.01）.CONCLUSION： Both accommodating and multifocal IOLs can successfully restore distance and uncorrected intermediate visual *** accommodating IOLs perform better in CS and with less halos of photic *** Zoom refractive multifocal IOLs havebetter performance in distance-corrected intermediate visual acuity than ZMA00 diffractive multifocal IOLs,and the latter achieved better near visual acuity and efficiently decreased the optical aberration.

关键词： intraocular lens accommodating multifocal visual performance

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Comparison of visual performance with iTrace analyzer following femtosecond laser-assisted cataract surgery with bilateral implantation of two different trifocal intraocular lenses

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International Journal of Ophthalmology(English edition) 2023年第11期16卷 1773-1781页

作者： Rui-Hong Ju Hao-Kun Qu Zhe-Ming Wu Yun Chen Li-Nan Wu Yuan Long Zheng Wang Aier Eye Hospital Jinan UniversityGuangzhou 510071Guangdong ProvinceChina

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 *** 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)*** postoperative complications were also ***:Totally 56 eyes of 28 patients(tri839 group,n=26;TFNT group,n=30)were *** baseline characteristics between groups were not statistically significantly *** was not significantly different between groups except for 1wk follow-up due to the postoperative corneal *** 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)*** refractive status showed stable at every *** transfer function(MTF)values and strehl ratio(SR)values were improved and HOAs were lower significantly after ***:FLACS with bilateral implantations of both tri839 and TFNT00 can achieve satisfactory

关键词： femtosecond laser-assisted cataract surgery visual performance binocular AT LISA tri839MP AcrySof PanOptix TFNT00 iTrace

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Comparison of visual performance between conventional LASIK and wavefront-guided LASIK with iris-registration

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Chinese Medical Journal 2008年第2期121卷 137-142页

作者： ZHANG Jing ZHOU Yue-hua WANG Ning-li LI Rui Ophthalmic Center Beijing Tongren Hospital Capital MedicalUniversity Beijing 100730 China

Background Laser in situ keratomileusis （LASIK） has become an efficient and commonly performed procedure to reduce refractive errors. In order to further increase the postoperative visual quality, the wavefront-guided refractive surgery has been a research hotspot in customized surgery. This study was conducted to compare the visual acuity, higher-order aberration, and contrast sensitivity of wavefront-guided LASIK with iris-registration and conventional LASIK. Methods Two hundred and eleven myopic eyes of 109 patients were enrolled in this prospective study and randomly divided into two groups： the wavefront-guided LASIK （wg LASIK） group （94 eyes） and conventional LASIK group （117 eyes）. A Wavescan Wavefront aberrometer was used to analyze Zernike coefficients and the root-mean-square （RMS） of higher order aberrations with 6.0 mm pupil size, and Optec 6500 visual function instrument was used to measure contrast sensitivity （CS） under 5 spatial frequencies before and after surgery in both groups.Results The uncorrected visual acuity （UCVA） and the mean spherical equivalent （SE） in wg LASIK group were significantly better than those in conventional LASIK （UCVA, z=2.339, P=0.019; SE, t=2.838, P=0.005） at 3 months after surgery. Moreover, the increase in Z3^-3, Z3^1, Z3^3, Z4^0, Z5^-1, Z5^1 Z5^-5 and Z6^-6 in wg LASIK group was statistically smaller than that in conventional LASIK group （P〈0.05）. In wg LASIK group, eyes with a higher amount of the preoperative RMS of the higher order aberrations （RMSh≥0.30μm） showed a statistically lower increase （13.5%） than those in conventional LASIK group at 3 months after surgery （33.3%）（P=0.004）. And the values of 4th order spherical aberration （4thSA） and the root mean square of 6th order aberration （RMS6） in wg LASIK group were significantly lower than those in conventional group in eyes which had higher preoperative astigmatism （≥1.0D）（4thSA, P=0.03; RMS6, P=0.02）. Wg LASIK group showed better CS values than the correspon

关键词： aberration contrast sensitivity visual performance keratomileusis, laser in situ

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Effect of changing mesopic and photopic light conditions on visual functions

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International Journal of Ophthalmology(English edition) 2023年第8期16卷 1287-1292页

作者： Fatemeh Mosayebi Seyyed Mehdi Tabatabaee Haleh Kangari Saeed Rahmani Department of Optometry School of RehabilitationShahid Beheshti University of Medical SciencesTehran 19839-63113Iran Department of Biostatistics School of RehabilitationShahid Beheshti University of Medical SciencesTehran 19839-63113Iran

AIM:To determine the effects of change in light conditions on refractive error and visual functions including visual acuity,stereopsis and contrast ***:This cross-sectional study was conducted in the optometry clinic of the Shahid Beheshti School of Rehabilitation on 48 students in *** of them had eye health and normal visual function and could have refractive errors or *** intensity of 4 lx was considered equivalent to photopic light condition and light intensity of 1 lx was considered to be equivalent to mesopic light *** amount of refractive error was checked by auto refractometer and its changes in mesopic light condition were subjectively ***,visual acuity,stereopsis and contrast sensitivity(in five spatial frequencies of 1.5,3,6,12,and 18 cycles per degree),were measured first in photopic light condition and then in mesopic light condition,by Snellen control vision chart,stereo butterfly test and the M&S technology monitor test ***:In the 48 student subjects with an average age of 22.69±3.56y,mean of refractive error as sphere equivalent,visual acuity and stereopsis were-1.25±1.74 diopters,0 logMAR,44.37±13.03 seconds of arc,respectively in photopic light condition while in mesopic light was equal to-1.56±1.75 diopters,0.12±0.09 logMAR and 50.62±33.35 seconds of arc,*** mean of contrast sensitivity measured at spatial frequencies of 1.5,3,6,12,and 18 cycles per degree in photopic condition was equal to 2.38±0.04,2.37±0.07,2.04±0.21,1.27±0.32,0.82±0.27 logarithm of contrast sensitivity,respectively and in mesopic lighting condition was equal to 2.34±0.12,2.30±0.16,1.84±0.28,1.02±0.28,0.63±0.24 logarithm of contrast sensitivity,*** analysis showed a significant difference between the two lighting conditions in all evaluated variables[refractive error(Pvisual acuity(P<0.001),stereopsis(P=0.008)and contrast sensitivity(P<0.001)].CONCLUSION:The refractive

关键词： mesopic light condition photopic light condition visual performance visual acuity stereopsis contrast sensitivity visual functions

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Macular carotenoid supplementation improves disability glare performance and dynamics of photostress recovery

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Eye and Vision 2016年第1期3卷 231-238页

作者： James M.Stringham Kevin J.O’Brien Nicole T.Stringham Nutritional Neuroscience Laboratory Department of Physiology and PharmacologyUniversity of GeorgiaAthensGA 30602USA Vision Sciences Laboratory Department of PsychologyUniversity of GeorgiaAthensGA 30602USA Interdisciplinary Neuroscience Program Biomedical Health Sciences InstituteUniversity of GeorgiaAthensGA 30602USA

Background:The so-called macular carotenoids(MC)lutein(L),zeaxanthin(Z),and meso-zeaxanthin(MZ)comprise the diet-derived macular pigment(MP).The purpose of this study was to determine effects of MC supplementation on the optical density of MP(MPOD),repeated-exposure photostress recovery(PSR),and disability glare(DG)***:This was a double-blind,placebo-controlled ***-nine young(mean age=21.7),healthy volunteers participated in this *** supplemented their daily diet with either 10 mg L+2 mg total Z(1 mg Z+1 mg MZ;n=24),20 mg L+4 mg total Z(2 mg Z+2 mg MZ;n=25),or placebo(n=10)for 12 *** primary outcome was a composite measure of visual performance in glare,defined by change in DG and *** outcomes included MPOD and visual *** primary endpoint for outcomes was 12 *** was assessed with customized heterochromatic flicker *** times for an 8 cycle/degree,15%contrast Gabor patch target were determined after each of five successive exposures to intense LED *** threshold was defined as the intensity of a ring of lights through which subjects were able to maintain visibility of the aforementioned *** of all parameters were conducted at baseline,6 months,and 12 ***-measures ANOVA,and Pearson product-moment correlations were used to determine statistically significant correlations,and changes within and between ***:MPOD for subjects in both supplementation groups increased significantly versus placebo at both 6-and 12-month visits(p<0.001 for all).Additionally,PSR times and DG thresholds improved significantly from baseline compared to placebo at 6-and 12-month visits(p<0.001 for all).At baseline,MPOD was significantly related to both DG thresholds(r=0.444;p=0.0021)and PSR times(r=-0.56;p<0.001).As a function of MPOD,the repeated-exposure PSR curves became more asymptotic,as opposed to *** change in subjects’DG thresholds were significantly related to chang

关键词： Lutein Zeaxanthin Mesozeaxanthin visual performance Photostress recovery Disability glare Macular pigment visual cycle

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Study of road tunnel threshold zone lighting reduction coefficient

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Journal of Central South University 2018年第9期25卷 2040-2048页

作者： DU Feng WENG Ji HU Ying-kui CAI Xian-yun Faculty of Architecture and Urban Planning Chongqing University College of Architecture and Urban Planning Fujian University of Technology Periodic Press Chongqing University

The luminance in the road tunnel threshold zone attracts broad attention due to its enormous energy consumption and direct influence on tunnel transportation *** lighting design methods in threshold zones mostly adopt the reduction coefficient ***,the determination of reduction coefficient k simply considers tunnel design speed and flow rate,while excluding outside tunnel luminance and threshold zone color temperature and luminance,which have a major impact on driver visual *** problems in the determination of k value are analyzed;a visual performance experiment is utilized;and the reaction time of drivers in changeable outside tunnel luminance and threshold zone color temperature and luminance conditions is obtained;thus,the equations concerning reduction coefficient variation law are *** the end,a comparative analysis is made of the k values of the reduction coefficient stipulated by various norms under different color temperature conditions.

关键词： tunnel lighting visual performance threshold zone reduction coefficient reaction time

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Ocular higher-order aberrations features analysis after corneal refractive surgery

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Chinese Medical Journal 2007年第4期120卷 269-273页

作者： WANG Yan ZHAO Kan-xing HE Ji-chang JIN Ying ZUO Tong Refractive Surgery Center Tianjin Eye Hospitai ＆ Eye InstituteTeaching Hospital of Tianjin Medical University Tianjin 300020China New England College of Optometry Boston MA 04115 USA

Background The recent studies have shown that visual performance might be affected by the ocular aberration after the corneal refractive surgery, and try to minimize it. This study was to investigate the effects of photorefractive keratectomy （PRK） and laser in situ keratomileusis （LASIK） on the higher order of wavefront aberration and analysis of their characteristics. Method This prospective study involved 32 eyes with similar refractive powers （-5.0 D to -6.0 D preoperatively）. LASIK and PRK were performed with the same parameters of 6 mm diameter optical zone and 7 mm diameter transition zone ablation. Wavefront aberrations were tested using a ray tracing technique preoperatively and 3 months postoperatively. Three measurements were obtained for each condition; the root mean squared wavefront error （RMS）, values for overall wavefront aberrations and each order of the Zernike aberrations were analyzed using the Matlab software. The 2-tailed t test was used for statistical analysis. Results Overall higher order aberrations were increased from （0.55±0.26） pm preoperatively to （0.93±0.37） pm for PRK and （0.79±0.38） pm for LASlK postoperatively. This was a 1.69 fold increase in the PRK group （t=3.95, P〈0.001） and a 1.43 fold increase in the LASIK group （t=2.60, P〈0.05）. At 3 months, the mean RMS value for higher-order （3rd to 6th） were significantly increased compared with the corresponding preoperative values （P〈0.05）. The fourth order aberrations, spherical like aberration, were dominant by a 2.64 fold in PRK and a 2.31 fold in LASIK. Different influences of the PRK group and LASIK group were shown in the various zernike components. The statistically significant differences were seen in C4^0. C4^4. C5^3,C5^3. C5^5 and C6^2 of the PRK group and C3^-3, C4^0, C5^-5, C5^5, C6^-2 of the LASIK group, which represents a 7.42, 3.58, 9.21,2.72 and 5.3 ford increases in PRK group, and 6.40, 10.80, 11.06, 3.47 and 6.09 fold increases in LASIK group, respectively. C3^3 in

关键词： laser surgery aberration visual performance

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visual Effects and Discomfort While Scrolling a Document on LCD Displays

Visual Effects and Discomfort While Scrolling a Document on ...

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2007亚洲显示国际会议

作者： Chiuhsiang Joe Lin Yao-Hung Hsieh Chia-Chieh Hsieh Department of Industrial Engineering Chung Yuan Christian University 200Chung Pei Rd.Chung Li 32023TaiwanChina Department of Industrial Engineering Chung Yuan Christian University 200Chung Pei Rd.Chung Li 32023TaiwanChina Department of Industrial Engineering Chung Yuan Christian University 200Chung Pei Rd.Chung Li 32023TaiwanChina

＜正＞The LCD display has made mobile computing *** application of mobile computing is information browsing. Browsing text and graphics information often requires scrolling the screen ***,many software provide tools for the user to scroll the text *** also provide zooming tools to magnify or shrink what was shown on the screen. Combining the scrolling and zooming tools,users can search freely in the entire ***,it is sometimes annoying by continuously viewing information that is *** may feel uncomfortable on the eyes with fast scroll ***- der fast speed,if the texts are too small,they are *** the texts are big,they become blurred causing dis- comfort on the *** this study,an experiment was carried out to investigate the effect of scroll speed and zoom level on users’ visual performance and fatigue when viewing a text document on the LCD *** results show that zoom level significantly affected the visual fatigue of the *** is recommended that document viewing tool must take the visual discomfort into design consideration.

关键词： Scroll Speed Zoom Level visual performance visual Fatigue

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