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| 1 | Predictive factors for photic phenomena after refractive,rotationally asymmetric,multifocal intraocular lens implantation显示文摘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. | Hungwon Tchah Kiyeun Nam Aeri Yoo | 2017 | International Journal of Ophthalmology(English edition)2017，10，2： | 15 |
| 2 | Diffractive multifocal intraocular lens implantation in patients with monofocal intraocular lens in the contralateral eye显示文摘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. | Jae Yong Kim Yunhan Lee Hun Jae Won Hyerin Jeong Jin Hyoung Park Myoung Joon Kim Hungwon Tchah | 2020 | International Journal of Ophthalmology(English edition)2020，13，5： | 2 |
| 3 | Comparison of the IntraLase Femtosecond Laser and Mechanical Microkeratome for Laser In Situ Keratomileusis显示文摘 | Taehyung Lim Sungjae Yang Myoungjoon Kim Hungwon Tchah | 2006 | American Journal of Ophthalmology2006，，5： | 2 |
| 4 | The effect oftopical bevacizumab on comeal neovascularization 显示文摘 | KIM SW HA BJ KIM EK TCHAH H KIM TI | 2008 | Oph-thalmology2008，115，6： | 1 |
| 5 | Transmission electron microscopy study of corneal epithelial flaps following removal using mechanical scraping, alcohol, and epikeratome techniques 显示文摘 | Choi CY Kim JY Kim M J Tchah H | 2008 | J Refract Surg2008，24，7： | 1 |
| 6 | Attenuation of corneal neovascularization by topical low-molecular-weight heparin-taurocholate 7 without bleeding complication显示文摘AIM:To investigate the antiangiogenic effects and safety of topically administered low-molecular-weight heparintaurocholate 7(LHT7) on corneal neovascularization(CoNV).METHODS:Twenty-four Sprague-Dawley rats were randomly distributed into four groups of six rats each.The central corneas were cauterized using a silver/potassium nitrate solution.From 2d after cauterization,12.5 mg/mL(low LHT7 group) or 25 mg/mL(high LHT7group) LHT7 was topically administered three times daily;12.5 mg/mL bevacizumab was topically administered as positive control(bevacizumab) group,with normal saline(NS) administered as negative control(NS group).The corneas were digitally photographed to calculate the CoNV percentage from the neovascularized corneal area at 1 and 2wk.RESULTS:The 4 study groups did not have different CoNV percentages at 1wk after injury(P>0.05).However,the low LHT,high LHT,and bevacizumab groups had significantly lower CoNV percentages than the NS group at 2wk(all P<0.05).No significant differences in CoNV percentage were found among the low LHT,high LHT,and bevacizumab groups(all P>0.05).All groups except the NS group had lower CoNV percentages at 2wk postinjury than the levels observed at 1wk(all P<0.05).CONCLUSION:Topically-administered LHT7 inhibited CoNV without complication after chemical cauterization in the rat. | Jae Yong Kim Soo Yeon Kim Mi Hyun Cheon Eun-Soon Kim In Seok Song Myoung Joon Kim Hungwon Tchah | 2016 | International Journal of Ophthalmology(English edition)2016，9，9： | 1 |
| 7 | Apoptosis in kerato-cytes caused by mitomycin C 显示文摘 | Kim TI Tchah H Lee SA* | 2003 | Invest OphthalmolVis Sci2003，44，5： | 1 |
| 8 | A femtosecond laser creates a stronger flap than a mechanical microkeratome显示文摘 | Kim JY Kim M J Kim TI Choi H J Pak JH Tchah H | 2006 | Invest Ophthalmol Vis Sci2006，47，2： | 1 |
| 9 | Realization of power line modem using a direct sequence spread spectrum technique显示文摘 | Sakong S C Tchah K H | 1993 | IEEE Transaction on Consumer Electronics1993，39，3： | 1 |
| 10 | Argon laser iridotomy as a possible cause of anterior dislocation of a crystalline lens显示文摘 | Seong M Kim MJ Tchah H | 2009 | J Cataract Refract Surg2009，35，7： | 1 |
| 11 | Effect of Intracameral Bevacizumab Injection on Corneal Endothelium in Rabbits显示文摘 | Hye Young Park Sang June Kim Ha Bum Lee Eun Soon Kim Hungwong Tchah | 2008 | Cornea2008，，10： | 1 |
| 12 | Comparison of the IntraLase femtosecond laser and mechanical microkeratome for laser in situ keratomileusis显示文摘 | Lim T Yang S Kim M Tchah H | | 0，，： | 1 |
| 13 | Effect of laser in situ keratomileusis on retinal nerve fiber layer thickness measurements by scanning laser polarimetry显示文摘 | Kook MS Lee SU Tchah HW Sung KR Park RH Kim KR | 2002 | J Cataract Refract Surg2002，28，： | 1 |
| 14 | The effect of growth factor on antigen and viability of corneal endothelial cells显示文摘 | TCHAH H | 1997 | Korean J Ophthalmol1997，11，1： | 1 |
| 15 | Apoptosis in keratocytes caused by mitomyein C显示文摘 | Kim TI Tchah H Lee SA | 2003 | Invest Ophthalmol Vis Sci2003，44，： | 1 |
| 16 | Bilateral comparison of wave-front-guided versus conventional laser in situ keratomileusis withBausch&Lomb Zyoptix显示文摘 | KIM TI YANG SJ TCHAH H | 2004 | Journal of Refractive Surgery2004，20，： | 1 |
| 17 | Topically administered bevacizumab had longer standing anti-angiogenic effect than subconjunctivally injected bevacizumab in rat corneal neovacularization显示文摘AIM:To compare the effect of topically administered and subconjunctivally injected bevacizumab on experimental corneal neovascularization in rats for two weeks after treatment.METHODS:Twenty-eight Sprague-Dawley rats were divided into four groups of 7 animals.Each corneal center of right eye was cauterized with silver/potassium nitrate for 8s.After corneal burning,bevacizumab(12.5mg/mL) was topically administered three times per day(TB group) for two weeks or subconjunctivally injected on days 2 and 4 after cauterization(0.02mL;SB group).As negative controls,rats received 0.9% saline topically three times per day(TS group) or subconjunctivally on days 2 and 4(0.02mL;SS group).Digital photographs of the cornea were taken 1 and 2 weeks after treatment and analyzed to determine the area of cornea covered by neovascularization as the percentage of corneal neovascularization.RESULTS:One week after treatment,the percentage of corneal neovascularization was significantly lower in the TB and SB groups than in the TS and SS groups(all P<0.05).Two weeks after treatment,the percentage of corneal neovascularization was significantly lower in the TB group than in the TS group(P<0.05).In all groups,the percentage of neovascularization was decreasing as time passed(all P<0.05) CONCLUSION:Topically administered bevacizumab has longer standing anti-angiogenic effect than subconjunctivally injected bevacizumab in corneal neovascularization following chemical injury in rats. | Jae Yong Kim Dong Yoon Kim Eun-Soon Kim Myoung Joon Kim Hungwon Tchah | 2013 | International Journal of Ophthalmology(English edition)2013，6，5： | 1 |
| 18 | Argon laser iridotom yas a possible cause of anterior dislocation of a crystalline lens 显示文摘 | Seong M Kim M_j Tchah H | 2009 | J Cataract Refract Surg2009，35，1： | 1 |
| 19 | Comparison of wavefront aberration after cataract surgery with acrylic intraocular lens implantation显示文摘 | Jaewan Choi Tae-im Kim Hungwon Tchah | 2005 | Journal of Cataract & Refractive Surgery2005，31，2： | 1 |
| 20 | The Effect of Topical Bevacizumab on Corneal Neovascularization显示文摘 | Sang Woo Kim Byung Jin Ha Eung Kweon Kim Hungwon Tchah Tae-im Kim | 2008 | Ophthalmology2008，，6： | 1 |
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