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Visual function and higher order aberration after implantation of aspheric and spherical multifocal intraocular lenses:a meta-analysis 被引量:6
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作者 Jian-Ping Liu Fan Zhang +2 位作者 Jiang-Yue Zhao Li-Wei Ma Jin-Song Zhang 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2013年第5期690-695,共6页
AIMTo assess the visual outcomes of aspheric multifocal intraocular lenses (IOLs) compared with spherical multifocal IOL after cataract surgery.
关键词 aspheric multifocal intraocular lens uncorrected near visual acuity uncorrected distance visual acuity spherical multifocal intraocular lens higher order aberration META-ANALYSIS
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Infliximab induces remission in cryptogenic multifocal ulcerous stenosing enteritis:First case 被引量:12
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作者 De Schepper Heiko Macken Elisabeth +3 位作者 Van Marck Veerle Spinhoven Maarten Pelckmans Paul Moreels Tom 《World Journal of Gastroenterology》 SCIE CAS 2013年第10期1661-1664,共4页
We present the case of a 29-year-old patient with a history of abdominal pain and vomiting.Based on wireless video capsule findings he was previously diagnosed with ileal Crohn's disease at a different institution... We present the case of a 29-year-old patient with a history of abdominal pain and vomiting.Based on wireless video capsule findings he was previously diagnosed with ileal Crohn's disease at a different institution,although the clinical and radiological picture was not typical and the response to corticosteroids was poor.We performed a single-balloon enteroscopy showing a short,ulcerous stenosis 50 cm proximal from Bauhin's valve.The endoscopic and clinical histopathological findings were compatible with cryptogenic multifocal ulcerous stenosing enteritis(CMUSE).High dose corticosteroids were again started,without effect.The monoclonal tumor necrosis factor-α(TNF-α) antibody infliximab was added to the medical therapy.After induction therapy,both clinical and endoscopic amelioration was obtained.Larger case studies are needed to confirm the efficacy of TNF-α inhibition in steroid refractory CMUSE. 展开更多
关键词 CRYPTOGENIC multifocal ulcerous stenosing ENTERITIS INFLIXIMAB Stenosis Intestinal ULCERATION Inflammatory bowel disease
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Predictive factors for photic phenomena after refractive,rotationally asymmetric,multifocal intraocular lens implantation 被引量:16
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作者 Hungwon Tchah Kiyeun Nam Aeri Yoo 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2017年第2期241-245,共5页
AIM: To investigate the independent factors associated with photic phenomena in patients implanted with refractive,rotationally asymmetric,multifocal intraocular lenses(MIOLs).METHODS: Thirty-four eyes of 34 patie... AIM: To investigate the independent factors associated with photic phenomena in patients implanted with refractive,rotationally asymmetric,multifocal intraocular lenses(MIOLs).METHODS: Thirty-four eyes of 34 patients who underwent unilateral cataract surgery,followed by implantation of rotationally asymmetric MIOLs were included.Distance and near visual acuity outcomes,intraocular aberrations,preferred reading distances,preoperative and postoperative refractive errors,mesopic and photopic pupil diameters,and the mesopic and photopic kappa angles were assessed.Patients were also administered a satisfaction survey.Photic phenomena were graded by questionnaire.Independent-related factors were identified by correlation and bivariate logistic regression analyses.RESULTS: The distance from the photopic to the mesopic pupil center(pupil center shift) was significantly associated with glare/halo symptoms [odds ratio(OR)=2.065,95% confidence interval(CI)=0.916-4.679,P=0.006] and night vision problems(OR=1.832,95% CI=0.721-2.158,P=0.007).The preoperative photopic angle kappa was significantly associated with glare/halo symptoms(OR=2.155,95% CI=1.065-4.362,P=0.041).The photopic angle kappa was also significantly associated with glare/halo symptoms(OR=2.155,95% CI=1.065-4.362,P=0.041) and with night vision problems(OR=1.832,95% CI=0.721-2.158,P=0.007) in patients implanted with rotationally asymmetric MIOLs.CONCLUSION: A large pupil center shift and misalignment between the visual and pupillary axis(angle kappa)may play a role in the occurrence of photic phenomena after implantation of rotationally asymmetric MIOLs. 展开更多
关键词 rotationally asymmetric multifocal intraocular lens pupil center photic phenomena dysphotopsia kappa angle pupil center shift
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Generation of super-resolved optical needle and multifocal array using graphene oxide metalenses 被引量:21
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作者 Hongtao Wang Chenglong Hao +4 位作者 Han Lin Yongtian Wang Tian Lan Chengwei Qiu Baohua Jia 《Opto-Electronic Advances》 SCIE 2021年第2期1-11,共11页
Ultrathin flat metalenses have emerged as promising alternatives to conventional diffractive lenses,offering new possibilities for myriads of miniaturization and interfacial applications.Graphene-based materials can a... Ultrathin flat metalenses have emerged as promising alternatives to conventional diffractive lenses,offering new possibilities for myriads of miniaturization and interfacial applications.Graphene-based materials can achieve both phase and amplitude modulations simultaneously at a single position due to the modification of the complex refractive index and thickness by laser conversion from graphene oxide into graphene like materials.In this work,we develop graphene oxide metalenses to precisely control phase and amplitude modulations and to achieve a holistic and systematic lens design based on a graphene-based material system.We experimentally validate our strategies via demonstrations of two graphene oxide metalenses:one with an ultra-long(~16λ)optical needle,and the other with axial multifocal spots,at the wavelength of 632.8 nm with a 200 nm thin film.Our proposed graphene oxide metalenses unfold unprecedented opportunities for accurately designing graphene-based ultrathin integratable devices for broad applications. 展开更多
关键词 femtosecond laser reduction graphene oxide metalens multifocal spots optical needle
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Cryptogenic multifocal ulcerous stenosing enteritis: Radiologic features and clinical behavior 被引量:6
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作者 Jiyoung Hwang Jin Sil Kim +6 位作者 Ah Young Kim Joon Seok Lim Se Hyung Kim Min Ju Kim Mi Sung Kim Kyoung Doo Song Ji Young Woo 《World Journal of Gastroenterology》 SCIE CAS 2017年第25期4615-4623,共9页
To investigate the characteristic radiologic findings of cryptogenic multifocal ulcerous stenosing enteritis (CMUSE) which can be differentiated from other similar bowel disease and to assess their clinical behavior. ... To investigate the characteristic radiologic findings of cryptogenic multifocal ulcerous stenosing enteritis (CMUSE) which can be differentiated from other similar bowel disease and to assess their clinical behavior. METHODSTwenty pathologically and clinically confirmed CMUSE patients (males:females = 8:12; mean age: 40.4 years) between March 2002 and August 2015 from seven academic centers in South Korea were retrospectively reviewed. We evaluated small bowel series (SBS; n = 25), computed tomography (CT) enterography (n = 21), magnetic resonance (MR) enterography (n = 2), and abdominopelvic CT (n = 18) images, focusing on enteric and perienteric manifestations. Any change in radiologic features during follow-up period was recorded. We evaluated clinical data including presenting symptoms, laboratory finding and presence of relapse from electronic medical records. Histopathologic findings were also evaluated. RESULTSThe main symptoms were abdominal pain (n = 12) and anemia (n = 10). All patients showed small bowel strictures (n = 52, mean: 2.6 per patient) on initial CT/MR, located in the ileum (n = 47) or jejunum (n = 5). Strictures showed short-length (mean: 10.44 mm) and circumferential bowel wall thickening (mean: 5.56 mm) with layered enhancement (n = 48) that were also noted on initial SBS (n = 36) with shallow ulcers (n = 10). Some ulcerative lesions or wall thickening progressed into strictures on follow-up SBS/CT, and some strictures revealed recurrent ulceration on follow-up SBS. There were no penetrating disease features like fistula or abscess and no gastrointestinal tract involvement except the small bowel. Nine patients experienced disease recurrence (median relapse-free period: 32 mo) even post-operatively. Histopathologic features of surgically resected specimens were characterized as multiple superficial ulcerations confined to mucosa or submucosa and multiple strictures. CONCLUSIONUnder characteristic radiologic findings with multiple short-segmental strictures and/or shallow ulcers of the small intestine, CMUSE should be considered when assessing patients with recurrent abdominal pain and anemia. 展开更多
关键词 Cryptogenic multifocal ulcerous stenosing enteritis Small intestine Computed tomography Small bowel series Diagnosis
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Visual performance of four types of diffractive multifocal intraocular lenses and a review of articles 被引量:7
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作者 Farideh Doroodgar Feizollah Niazi +4 位作者 Azad Sanginabadi Farid Karimian Sana Niazi Cyrus Alinia Mohammad Ali Javadi 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2021年第3期356-365,共10页
AIM: To compare the clinical outcomes of a variety of multifocal intraocular lenses(MIOLs) in patients diagnosed with presbyopia or cataracts. METHODS: This clinical trial study included 141 patients(282 eyes) with di... AIM: To compare the clinical outcomes of a variety of multifocal intraocular lenses(MIOLs) in patients diagnosed with presbyopia or cataracts. METHODS: This clinical trial study included 141 patients(282 eyes) with different MIOLs implantation. The Symfony(60 eyes), the Re STOR(100 eyes), the AT LISAtri(60 eyes), and the Pan Optix(62 eyes) intraocular lenses were evaluated in this prospective interventional study. The near, intermediate, and distant visual acuities, contrast sensitivity, and defocus curve were measured as valid criteria. To statistically analyze the results, we used the Statistical Package for Social Science software, the non-parametric Wilcoxon signed-rank t, the one-way analysis of variance and the Tukey’s post-hoc test in our analysis. Moreover, we conducted a detailed literature search on the Pub Med database in English about MIOLs, in total 59 studies were included in this review article.RESULTS: The four approaches did not show any significant difference in the best-corrected distance visual acuity(P>0.05). The defocus curves at the contrast of 100% showed that trifocal IOLs had better intermediate performance than the bifocal IOL(P<0.05). There were no statistically significant differences between AT LISAtri and Pan Optix lenses for visual acuity at all distances. The eyes with Pan Optix, Symfony, and AT LISAtri IOL showed better contrast sensitivity than those Re STOR at spatial frequencies of 1, 3, and 6 cpd in photopic and mesopic conditions(P<0.001). CONCLUSION: All four groups of the multifocal lenses were satisfying in terms of distance and near vision. Also, the group of trifocal lenses led to satisfactory outcomes in intermediate vision, without degradation in quality of vision. 展开更多
关键词 multifocal lens visual acuity CATARACT PRESBYOPIA
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Visual outcome and optical quality after bilateral implantation of aspheric diffractive multifocal, aspheric monofocal and spherical monofocal intraocular lenses: a prospective comparison 被引量:5
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作者 Pan-Pan Ye Xia Li Ke Yao 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2013年第3期300-306,共7页
·AIM: To evaluate the visual function after bilateral implantation of aspheric diffractive multifocal Tecnis ZMA00, aspheric monofocal ZA9003 versus spherical monofocal Akreos Adapt intraocular lenses (IOLs). ... ·AIM: To evaluate the visual function after bilateral implantation of aspheric diffractive multifocal Tecnis ZMA00, aspheric monofocal ZA9003 versus spherical monofocal Akreos Adapt intraocular lenses (IOLs). ·METHODS: Tecnis ZMA00, Tecnis ZA9003 or Akreos Adapt IOLs were bilaterally implanted in 180 eyes from 90 patients. The following parameters were assessed 3 months postoperatively: monocular and binocular uncorrected visual acuity (UCVA) and distance-corrected visual acuity (DCVA) for distance, intermediate and near, spherical aberration (SA), contrast and glare sensitivity, near point refractive power, uncorrected and best corrected near stereoscopic acuity (NSA). Patient satisfaction was assessed by a questionnaire. ·RESULTS:Threemonthspostoperatively,themonocular and binocular UCVA and DCVA at near of Tecnis ZMA00 were significantly better than other two groups. The mean SA for 5.0mm optical zone in Tecnis ZMA00 and Tecnis ZA9003 was significantly lower than that in Akreos Adapt. Mean contrast sensitivity and glare sensitivity were better for Tecnis ZA9003 group than for other two groups. Patients with Tecnis ZMA00 had higher monocular and binocular near point refractive power and uncorrected NSA than monofocal groups. The patients in Tecnis ZMA00 had higher mean values for halo compared with other two groups. ·CONCLUSION: Tecnis ZMA00 provided better near VA and uncorrected NSA and higher near point refractive power than monofocal IOLs and patients were spectacle independent. The IOLs with Tecnis aspheric design improved contrast and glare sensitivity. Patients with Tecnis ZMA00 reported more disturbances on visual phenomena of halo. · 展开更多
关键词 intraocular lens ABERRATION visual acuity multifocal
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Is breast conservative surgery a reasonable option in multifocal or multicentric tumors? 被引量:5
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作者 Gilles Houvenaeghel Agnès Tallet +4 位作者 Aurélie Jalaguier-Coudray Monique Cohen Marie Bannier Camille Jauffret-Fara Eric Lambaudie 《World Journal of Clinical Oncology》 CAS 2016年第2期234-242,共9页
The incidence of multifocal(MF) and multicentric(MC) carcinomas varies widely among clinical studies,depending on definitions and methods for pathological sampling.Magnetic resonance imaging is increasingly used becau... The incidence of multifocal(MF) and multicentric(MC) carcinomas varies widely among clinical studies,depending on definitions and methods for pathological sampling.Magnetic resonance imaging is increasingly used because it can help identify additional and conventionally occult tumors with high sensitivity.However,false positive lesions might incorrectly influence treatment decisions.Therefore,preoperative biopsies must be performed to avoid unnecessary surgery.Most studies have shown higher lymph node involvement rates in MF/MC tumors than in unifocal tumors.However,the rate of local recurrences is usually low after breast conservative treatment(BCT) of MC/MF tumors.It has been suggested that BCT is a reasonable option for MC/MF tumors in women aged 50-69 years,with small tumors and absence of extensive ductal carcinoma in situ.A metaanalysis showed an apparent decreased overall survival in MC/MF tumors but data are controversial.Surgery should achieve both acceptable cosmetic results and negative margins,which requires thorough preoperative radiological workup and localization of lesions.Boost radiotherapy techniques must be evaluated since double boosts might result in increased toxicity,namely fibrosis.In conclusion,BCT is feasible in selected patients with MC/MF but the choice of surgery must be discussed in a multidisciplinary team comprising at least radiologists,surgeons and radiotherapists. 展开更多
关键词 MASTECTOMY BREAST conservative surgery multifocal TUMORS MULTICENTRIC TUMORS Radiotherapy Local recurrence BREAST cancer Survival
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Accuracy of eight intraocular lens power calculation formulas for segmented multifocal intraocular lens 被引量:6
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作者 Jing Zhao Liang-Ping Liu +4 位作者 Huan-Huan Cheng Jian-Bing Li Xiao-Tong Han Yu Liu Ming-Xing Wu 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2020年第9期1378-1384,共7页
AIM:To evaluate the accuracy of eight different intraocular lens(IOL)power calculation formulas for a segmented multifocal IOL.METHODS:A total of 53 eyes of 41 adult cataract patients who underwent phacoemulsification... AIM:To evaluate the accuracy of eight different intraocular lens(IOL)power calculation formulas for a segmented multifocal IOL.METHODS:A total of 53 eyes of 41 adult cataract patients who underwent phacoemulsification and implantation with the SBL-3 segmented multifocal IOL between January 1,2017 and January 31,2019 were included in this retrospective study.Preoperative biometry measurements were obtained using an IOL Master.Manifest refraction was performed at least 4 wk postoperatively.Accuracy of the eight formulas[Barrett Universal II,Emmetropia Verifying Optical(EVO),Haigis,Hill-RBF 2.0,Hoffer Q,Holladay 1,Kane,and SRK/T]was analyzed.RESULTS:Using current lens constants,all formulas exhibited errors of slight myopic shift in refractive prediction.The Barrett Universal II formula had a significantly lower median absolute error(MedAE)than did Holladay 1(P=0.02),Kane(P=0.001)and Hill-RBF 2.0(P<0.001)formulas.The Haigis formula had a lower MedAE value than did the Hill-RBF 2.0 formula(P=0.005).Differences in MedAE values among SRK/T,EVO and Hoffer Q formulas were not significant.After optimizing lens constants,the MedAE values of all formulas were reduced;significant changes were noted for EVO(P=0.022),Haigis(P=0.048);Hill-RBF 2.0(P=0.014),Holladay 1(P=0.045)and Kane(P=0.022)formulas.All formulas performed equally well after optimization of lens constants(P=0.203).CONCLUSION:All eight formulas tend to result in a myopic shift when using current lens constants.Optimized lens constants improve the accuracy of these formulas among adult Chinese patients. 展开更多
关键词 ACCURACY intraocular lens formulas lens constants segmented multifocal intraocular lens
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Diffractive multifocal intraocular lens implantation in patients with monofocal intraocular lens in the contralateral eye 被引量:6
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作者 Jae Yong Kim Yunhan Lee +4 位作者 Hun Jae Won Hyerin Jeong Jin Hyoung Park Myoung Joon Kim Hungwon Tchah 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2020年第5期737-743,共7页
AIM:To evaluate clinical outcomes of unilateral implantation of a diffractive multifocal intraocular lens(IOL)in patients with contralateral monofocal IOL.METHODS:Twenty-two patients who already had implantation of a ... AIM:To evaluate clinical outcomes of unilateral implantation of a diffractive multifocal intraocular lens(IOL)in patients with contralateral monofocal IOL.METHODS:Twenty-two patients who already had implantation of a monofocal IOL in unilateral eye underwent implantation of a diffractive multifocal IOL in contralateral eye were enrolled.After 1,6,and 12 mo,uncorrected and distant corrected distant visual acuity(UCDVA and DCDVA),uncorrected and distant corrected intermediate-visual acuity(UCIVA and DCIVA),uncorrected and distant corrected near visual acuity(UCNVA and DCNVA),and contrast sensitivity were obtained.Halo/glare symptoms,spectacle dependence,and patient satisfaction were also evaluated.RESULTS:The mean age was 67.86±7.25 y and the average interval between two IOL implantations was 645.82±878.44 d.At 1 mo,binocular UCDVA was lower than 0.20 logMAR in 76%of patients(mean 0.12±0.13 logMAR),which increased to 90%by 6 and 12 mo.The binocular UCDVA was significantly better than the monocular results(P<0.05)at 1,6,and 12 mo.Additionally,UCNVA was lower than 0.40 logMAR in 82%of patients,increasing to 90%by 6 and 12 mo.Mean UCNVA in the multifocal IOL implanted eye was statistically significantly better than that in the monofocal IOL implanted eye(P<0.05)at 1,6,and 12 mo.About 5%of patients at 1 and 6 mo,reported"severe glare or halo".Patient satisfaction rates were 95%and 91%at 6 and 12 mo,respectively.CONCLUSION:Unilateral implantation of multifocal IOL in patients with a contralateral,monofocal IOL implantation results in high patient satisfaction rate,with low severe glare or halo rate during follow-up.It can represent a good option for patients who have previously had a monofocal IOL implantation regardless of two year interval duration between two IOL implantations. 展开更多
关键词 diffractive multifocal intraocular lens unilateral implantation near vision cataract surgery
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Potential of video games for the promotion of neuroadaptation to multifocal intraocular lenses: a narrative review 被引量:3
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作者 Maria Begona Coco-Martin Pedro LValenzuela +3 位作者 Miguel JMaldonado-López Alejandro Santos-Lozano Ainhoa Molina-Martin David P Pinero 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2019年第11期1782-1787,共6页
Multifocal intraocular lenses(IOLs) are currently usually implanted for the treatment of cataracts because they have been proved to be superior to monofocal IOLs with respect to spectacle independence. In turn, they a... Multifocal intraocular lenses(IOLs) are currently usually implanted for the treatment of cataracts because they have been proved to be superior to monofocal IOLs with respect to spectacle independence. In turn, they are associated with a higher prevalence of dysphotopsia symptoms that is one of the most common causes of patient dissatisfaction. Neuroadaptation seems to play a major role in the optimal adaptation to multifocal IOLs. In this context, the development of strategies that facilitate the neuroadaptation process to multifocality might be an effective strategy to reduce patients' dissatisfaction. Video games have been proved to be effective for the improvement of visual acuity and for the promotion of neuroplasticity in elderly subjects and other populations with cortical-related visual impairment. This narrative review highlights the physiological potential of video games as a perceptual strategy to improve visual acuity and promote neuroplasticity in patients using multifocalIOLs, although research is still needed to confirm these benefits in this specific population, with only one comparative study to this date providing evidence of them. 展开更多
关键词 multifocal intraocular lens dysphotopsia photic phenomena HALOS video games NEUROADAPTATION NEUROPLASTICITY
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Multifocal electroretinogram in non-pathological myopic subjects:correlation with optical coherence tomography 被引量:3
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作者 Ai-Ping Song Tao Yu +3 位作者 Jian-Rong Wang Wei Liu Yan Sun Su-Xiang Ma 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2016年第2期286-291,共6页
AIM: To investigate the changes of retinal function in non-pathological myopic subjects using multifocal electroretinography (mfERG) and to correlate the data with the central macular thickness obtained using optic... AIM: To investigate the changes of retinal function in non-pathological myopic subjects using multifocal electroretinography (mfERG) and to correlate the data with the central macular thickness obtained using optical coherence tomography (OCT). ~ METHODS: One hundred and thirteen subjects (113 eyes) with age range from 18 to 35y were enrolled in the study. The subjects were divided into four groups according to spherical equivalent (SE) and axial length (AL): emmetropia group (EG, n=31; SE: +0.75 to -0.50 D; AL: 22 to 24 mm), low and medium myopia group (LMMG, n=26; SE: 〉-0.50 to -6.00 D; AL: 〉24 to 26 ram), high myopia group (HMG, n--34; SE: 〉-6.00 to -10.00 D; AL: 〉26 to 28 mm) and super high myopia group (SHMG, n =22; SE: 〉-10.00 D; AL: 〉28 mm). The P1 amplitude density, P1 amplitude, and P1 implicit time of the first- order kernel mfERG responses were obtained and grouped into five rings. The central subfield macular thickness (CST) was obtained using macular cube 512x218 scan of Cirrus HD-OCT. RESULTS: With the increasing of eccentricity, the first positive peak (P1) amplitude density (P=0.0000, 0.0001, 0.0021 in ring 1-3 respectively) and P1 amplitude (all P= 0.0000 in ring 1-5) of each group decreased. With the increasing of myopia, P1 implicit time gradually extended (all P=0.0000 in ring 1-3). The average CST in four diagnostic groups was 241.56±12.72um, 244.56±12.19um, 254.33±11.61um, 261.75±11.83um respectively. With the increasing of myopia, CST increased (P〈0.001). There was negative relationship between CST and P1 amplitude, P1 amplitude density (r =-0.402, P〈0.001; r= -0.261, P =0.003). There was positive relationship between CST and P1 implicit time (r=0.34, P〈0.001).~ CONCLUSION: With the increasing of myopia, P1 amplitude density and P1 amplitude of the first-order reaction gradually reduced. This showed potential decline in retinal function in myopia. To some extent it may reflect the functional disorder or depression of the visual cells, The exact mechanism needs further study, 展开更多
关键词 multifocal electroretinogram opticalcoherence tomography MYOPIA
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Multifocal intraductal papillary mucinous neoplasm of the pancreas-A case report 被引量:2
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作者 Kun-Chun Chiang Jun Te Hsu +3 位作者 Shyh Chuan Jwo Tsann-Long Hwang Yi-Yin Jan Chun-Nan Yeh 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第5期628-632,共5页
Cystic neoplasms of the pancreas are relatively rare, comprising 10 percent of pancreatic cysts and only 1 percent of pancreatic cancers. Cystic neoplasms include mucinous cystic neoplasms, serous cystadenomas, papill... Cystic neoplasms of the pancreas are relatively rare, comprising 10 percent of pancreatic cysts and only 1 percent of pancreatic cancers. Cystic neoplasms include mucinous cystic neoplasms, serous cystadenomas, papillary cystic tumors, cystic islet cell tumors and intraductal papillary mucinous neoplasms of the pancreas (IPMNs). IPMN was first described in 1982. It has been most commonly described in 60 to 70 years old males, and represents a relatively ''new'' but increasingly recognized disease. The improvement and widespread use of modern imaging equipments and heightened awareness of physicians contribute to the increasing incidence of IPMN. The majority of IPMNs are located in the pancreatic head (75%) while the rest involves the body/tail regions. Multifocal IPMNs have been hypothesized, but the true presence of multifocality is unknown. Here we present a 72-yearold male diagnosed with IPMN (carcinoma in situ ) in the pancreatic head and a branch duct type IPMN (duct atypia) in the pancreatic body and tail. The patient underwent a Whipple intervention and a distal pancreatectomy. A three-year disease-free survival has been observed so far. 展开更多
关键词 Intraductal papillary mucinous neoplasm PANCREAS multifocal PANCREATECTOMY Intraductalpapillary mucinous neoplasms
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Retinal detachment repair through multifocal intraocular lens-overcoming visualization challenge of the peripheral retina 被引量:3
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作者 Amir Hadayer Denis Jusufbegovic Shlomit Schaal 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2017年第6期1008-1010,共3页
Sir Nicholas Harold Lloyd Ridley has revolutionized the practice of ophthalmology by performing the firstintraocular lens (IOL) implantation in 1949. His scientific achievement was acknowledged thirty years later, w... Sir Nicholas Harold Lloyd Ridley has revolutionized the practice of ophthalmology by performing the firstintraocular lens (IOL) implantation in 1949. His scientific achievement was acknowledged thirty years later, which led to US Food and Drug Administration approval in 1981. Although the basic principles of IOL implantation have not changed since, many efforts have been invested in perfecting IOL design during the past decades. 展开更多
关键词 IOL Retinal detachment repair through multifocal intraocular lens-overcoming visualization challenge of the peripheral retina PPV
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Visual performance with accommodating and multifocal intraocular lenses 被引量:2
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作者 Jie Lan Yu-Sen Huang +3 位作者 Yun-Hai Dai Xiao-Ming Wu Jia-Jun Sun Li-Xin Xie 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2017年第2期235-240,共6页
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 ac... 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 surgery.RESULTS: The spherical equivalent in the three groups was-0.38±0.54 D,0.14±0.56 D,and 0.35±0.41 D,respectively.No 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 acuities.Tetraflex accommodating IOLs perform better in CS and with less halos of photic phenomena.Re 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. 展开更多
关键词 intraocular lens accommodating multifocal visual performance
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Effect on multifocal electroretinogram in persistently elevated intraocular pressure by erigeron breviscapus extract 被引量:2
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作者 Xue-Jing Lu, Jun-Guo Duan 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2011年第4期349-352,共4页
AIM: To observe the effect on multifocal electroretinogram (mfERG) in persistently elevated intraocular pressure (TOP) by erigeron breviscapus extract (also named Dengzhanhua in Chinese) in rat models. METHODS: The ra... AIM: To observe the effect on multifocal electroretinogram (mfERG) in persistently elevated intraocular pressure (TOP) by erigeron breviscapus extract (also named Dengzhanhua in Chinese) in rat models. METHODS: The rat models with persistently elevated TOP were established by the method of Akira. Then, erigeron breviscapus extract was given for one month to observe the effect on mfERG in persistently elevated TOP in rats. RESULTS: As elevated TOP went on, the mfERG changes were mainly in weaken of reaction density with progressive development. After intervention of erigeron breviscapus extract, the total peak latency of 131 wave had recovered to some extent and the difference was significant when compared with control group (P <0.05); the total response density and P1 wave response density in second circle had risen noticeably, which had significant differences than those of control group (P <0.05). CONCLUSION: Erigeron breviscapus extract can improve the impaired visual function of persistently elevated TOP in rats, suggesting that this extract is the effective part of erigeron breviscapus for optic neuroprotection. 展开更多
关键词 erigeron breviscapus extract GLAUCOMA multifocal electroretinogram optic neuroprotection
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Objective assessment of the effect of pupil size upon the power distribution of multifocal contact lenses 被引量:2
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作者 Eleni Papadatou Antonio J.Del Aguila-Carrasco +2 位作者 Jose J.Esteve-Taboada David Madrid-Costa Alejandro Cervino-Exposito 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2017年第1期103-108,共6页
AIM: To analytically assess the effect of pupil size upon the refractive power distributions of different designs of multifocal contact lenses.METHODS: Two multifocal contact lenses of center-near design and one mul... AIM: To analytically assess the effect of pupil size upon the refractive power distributions of different designs of multifocal contact lenses.METHODS: Two multifocal contact lenses of center-near design and one multifocal contact lens of center-distance design were used in this study. Their power profiles were measured using the NIMO TR1504 device (LAMBDA-X, Belgium). Based on their power profiles, the power distribution was assessed as a function of pupil size. For the high addition lenses, the resulting refractive power as a function of viewing distance (far, intermediate, and near) and pupil size was also analyzed.RESULTS: The power distribution of the lenses was affected by pupil size differently. One of the lenses showed a significant spread in refractive power distribution, from about ?3 D to 0 D. Generally, the power distribution of the lenses expanded as the pupil diameter became greater. The surface of the lens dedicated for each distance varied substantially with the design of the lens.CONCLUSION: In an experimental basis, our results show how the lenses power distribution is affected by the pupil size and underlined the necessity of careful evaluation of the patient’s visual needs and the optical properties of a multifocal contact lens for achieving the optimal visual outcome. 展开更多
关键词 multifocal contact lenses pupil size power profiles refractive power distribution
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Correlation between optical coherence tomography, multifocal electroretinogram findings and visual acuity in diabetic macular edema 被引量:2
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作者 Hong-He Xia Jia-Lin Chen +1 位作者 Hao-Yu Chen Hong-Jie Lin 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2020年第10期1592-1596,共5页
AIM:To analyze the correlation between macular morphology and function in eyes with diabetic macular edema(DME).METHODS:Fifty-five eyes with different visual acuity(VA)of 32 patients who suffered from DME were analyze... AIM:To analyze the correlation between macular morphology and function in eyes with diabetic macular edema(DME).METHODS:Fifty-five eyes with different visual acuity(VA)of 32 patients who suffered from DME were analyzed using multifocal electroretinography(mfERG)and optical coherence tomography(OCT).The parameters of mfERG including implicit times and response amplitude were compared to those of 50 normal eyes of 36 age-matched subjects.Correlation analysis was performed between VA,the parameters of mfERG including implicit times and response amplitude,and the central macular thickness(CMT).RESULTS:The amplitude of N1 and P1 were significantly decreased and their latency were significantly increased in five ring regions of the retina in patients with DME.There was statistically significant correlation between logMAR BCVA and P1 amplitude densities in rings 1-4(r=-0.306,-0.536,-0.470,-0.362;P=0.023,<0.01,<0.01,0.007 respectively),N1 amplitude in ring 2 and ring 3(r=-0.035,-0.286;P=0.019,0.034 respectively).There was poor correlation between the CMT and best-corrected visual acuity(BCVA;r=0.288,P=0.033),but there was no significant correlation between CMT and amplitude or implicit time of N1 and P1(P>0.05)in the central macular ring.Multiple stepwise regression analysis showed that P1 amplitude density in ring 2 was the only contributor to the VA.CONCLUSION:It seems to be more appropriate of combining use of mfERG with OCT for the evaluation of macular function in eyes with DME. 展开更多
关键词 diabetic macular edema optical coherence tomography multifocal electroretinography best-corrected visual acuity
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A new treatment option for the resistant spasm of accommodation:clear lens extraction and multifocal intraocular lens implantation 被引量:2
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作者 Ozgun Melike Gedar Totuk Umit Aykan 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2018年第1期172-174,共3页
Dear Editor,We write you to present a 20-year-old man with resistant spasm of accommodation without any organic cause treated with clear lens extraction(CLE)with phacoemulsification and multifocal intraocular lens(... Dear Editor,We write you to present a 20-year-old man with resistant spasm of accommodation without any organic cause treated with clear lens extraction(CLE)with phacoemulsification and multifocal intraocular lens(IOL)implantation. 展开更多
关键词 reatment option clear lens multifocal intraocular lens
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Validity of automated refraction after segmented refractive multifocal intraocular lens implantation 被引量:5
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作者 Cesar Albarran-Diego Gonzalo Munoz +2 位作者 Stephanie Rohrweck Satiago Garcia-Lazaro Jose Ricardo Albero 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2017年第11期1728-1733,共6页
AIM: To evaluate the clinical utility of automated refraction(AR) and keratometry(KR) compared with subjective or manifest refraction(MR) after cataract or refractive lens exchange surgery with implantation of ... AIM: To evaluate the clinical utility of automated refraction(AR) and keratometry(KR) compared with subjective or manifest refraction(MR) after cataract or refractive lens exchange surgery with implantation of Lentis Mplus X(Oculentis GmbH) refractive multifocal intraocular lens(IOL).METHODS: Eighty-six eyes implanted with the Lentis Mplus X multifocal IOL were included. MR was performed in all patients followed by three consecutive AR measurements using the Topcon KR-8000 autorefractor. Assessment of repeatability of consecutive AR before and after dilation with phenylephrine 10%, and comparison of the AR and KR with MR using vector analysis were performed at 3 mo follow-up.RESULTS: Analysis showed excellent repeatability of the AR measurements. Linear regression of AR versus MR showed good correlation for sphere and spherical equivalent, whereas the correlation for astigmatism was low. The mean difference AR-MR was-1.28±0.29 diopters(D) for sphere. Astigmatism showed better correlation between KR and MR. CONCLUSION: We suggest AR sphere plus 1.25 D and the KR cylinder as the starting point for MR in eyes with a Lentis Mplus X multifocal IOL. If AR measurements are equal to MR, decentration of the IOL should be suspected. 展开更多
关键词 autorefraction vector analysis agreement multifocal intraocular lenses
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