AIM:To compare the visual performance of pseudophakic eyes implanted with Al-UV and SN60WF aspheric intraocular lens(IOL),and to investigate the correlations between visual quality parameters and pupil size.METHODS:Th...AIM:To compare the visual performance of pseudophakic eyes implanted with Al-UV and SN60WF aspheric intraocular lens(IOL),and to investigate the correlations between visual quality parameters and pupil size.METHODS:This prospective comparative study included 105 eyes of 90 patients with age-related cataract who underwent uneventful phacoemulsification.The subjects were divided into two groups according to the implanted IOL type.Three months postoperatively,visual acuity and contrast sensitivity were measured,wave-front aberrations were assessed using a KR-IW aberrometer(Topcon),and objective optical quality parameters were performed using an optical quality analysis system-OQAS Il(Visiometrics).Independent sample Mest and Spearman correlation analysis were used for data analysis.RESULTS:There were no significant differences found in visual acuity,contrast sensitivity and visual quality parameters between the two groups(P>0.05).The measured intraocular spherical aberration(SA)in Al-UV IOL eyes of-0.19±0.05 pm was close to the designed SA value of-0.20 pm.The modulation transfer function cutoff,Strehl ratio and OQAS values were negatively correlated with pupil size in both groups(P<0.01).CONCLUSION:The subjective and objective visual quality in pseudophakic eyes with A1-UV and SN60WF IOLs are comparable.For aspheric IOL eyes,visual quality decreases with increasing pupil size.展开更多
目的:系统评价低能量红光对于近视儿童脉络膜厚度(ChT)和等效球镜度(SE)及眼轴长度(AL)的影响。方法:通过检索Pubmed、Embase、Cochrane Library、Web of Science、中国知网、万方、维普网及中国生物医学文献数据库共8个数据库,从建库至...目的:系统评价低能量红光对于近视儿童脉络膜厚度(ChT)和等效球镜度(SE)及眼轴长度(AL)的影响。方法:通过检索Pubmed、Embase、Cochrane Library、Web of Science、中国知网、万方、维普网及中国生物医学文献数据库共8个数据库,从建库至2023-01期间所有关于低能量红光干预近视发展的随机对照试验,红光干预作为试验组,仅配戴单焦眼镜作为对照组。按照Cochrane手册要求进行文献质量及偏倚风险评价。Meta分析由Revman5.4软件完成。结果:共计纳入8篇有关低能量红光干预近视发展的随机对照试验研究。用于分析ChT变化的样本量为红光组407眼,对照组425眼;用于分析SE变化差值的样本量为红光组490眼,对照组518眼;纳入AL分析的样本量为红光组518眼,对照组539眼。红光组与对照组ChT、SE、AL比较均有差异(ChT:WMD=37.81,95%CI:21.55~54.07,P<0.001;SE:WMD=0.58,95%CI:0.46~0.71,P<0.001;AL:WMD=-0.31,95%CI:-0.39~-0.24,P<0.001)。结论:特定的红光有助于促进ChT而抑制SE及AL增加,但其远期效果及副作用尚不清楚,上述结论还需要更多大样本的随机对照研究进一步明确。展开更多
·AIM: To investigate the effect of all-trans retinoic acid(ATRA) on retinol dehydrogenase 5(RDH5), matrix metalloproteinase-2(MMP-2) and transforming growth factor-β2(TGF-β2) transcription levels, and the effec...·AIM: To investigate the effect of all-trans retinoic acid(ATRA) on retinol dehydrogenase 5(RDH5), matrix metalloproteinase-2(MMP-2) and transforming growth factor-β2(TGF-β2) transcription levels, and the effect of RDH5 on MMP-2 and TGF-β2 in retinal pigment epithelium(RPE) cells.·METHODS: After adult RPE cell line-19(ARPE-19 cells) intervened with gradient concentrations of ATRA(0-20 μmol/L) for 24h, flow cytometry was used to detect the proliferation and apoptosis of cells in each group, and quantitative realtime polymerase chain reaction(q RT-PCR) was used to detect RDH5, MMP-2 and TGF-β2 m RNA expression. Then, after ARPE-19 cells transfected with three different si RNA targets for 48h, the RDH5 knockdown efficiency of each group and expression of MMP-2 and TGF-β2 m RNA within them was detected by q RT-PCR. ·RESULTS: Flow cytometry results showed that ATRA could inhibit the proliferation of RPE cells and promote the apoptosis of RPE cells, and the difference of apoptosis was statistically significant when the ATRA concentration exceeded 5 μmol/L and compared with the normal control group(P=0.027 and P=0.031, respectively). q RT-PCR results showed that ATRA could significantly inhibit the expression level of RDH5 m RNA(P<0.001) and promote the expression of MMP-2 and TGF-β2 m RNA(P=0.03 and P<0.001, respectively) in a dose-dependent manner, especially when treated with 5 μmol/L ATRA. The knockdown efficiency of RDH5 si RNA varies with different targets, among which RDH5 si RNA-435 had the highest knockdown efficiency, i.e., more than 50% lower than that of the negative control group(P=0.02). When RDH5 was knocked down for 48h, the results of q RT-PCR showed that the expressions of MMP-2 and TGF-β2 m RNA were significantly up-regulated(P<0.001).·CONCLUSION: ATRA inhibits the expression of RDH5 and promotes MMP-2 and TGF-β2, and further RDH5 knockdown significantly upregulates MMP-2 and TGF-β2. These findings suggest that RDH5 may be involved in an epithelial-mesenchymal transition of RPE cells mediated by ATRA.展开更多
目的:系统评价眼用0.01%、0.025%和0.05%阿托品对于近视儿童等效球镜度及眼轴长度的影响。方法:检索PubMed、Embase、Cochrane Library、Web of Science、中国知网、万方数据库、维普网、中国生物医学文献数据库中从建库至2022-05期间...目的:系统评价眼用0.01%、0.025%和0.05%阿托品对于近视儿童等效球镜度及眼轴长度的影响。方法:检索PubMed、Embase、Cochrane Library、Web of Science、中国知网、万方数据库、维普网、中国生物医学文献数据库中从建库至2022-05期间发表的关于0.01%、0.025%和0.05%阿托品进行近视控制的研究。使用Cochrane手册对纳入文献进行偏倚风险评价及质量评价,并使用Revman 5.4软件进行Meta分析,利用STATA12.0软件检测发表偏倚。结果:共计纳入6篇文献1 239眼,其中5项为随机对照试验,1项为病例对照研究。Meta分析显示,0.025%阿托品对SE及AL的抑制效果好于0.01%阿托品(SE:WMD=-0.15,95%CI:-0.23~-0.06,P<0.001;AL:WMD=0.07,95%CI:0.03~0.10,P<0.001)。0.05%阿托品对SE及AL抑制效果好于0.01%阿托品(SE:WMD=-0.35,95%CI:-0.44~-0.26,P<0.001;AL:WMD=0.16,95%CI:0.12~0.20,P<0.001)。0.05%阿托品对SE及AL增加的抑制效果好于0.025%阿托品(SE:WMD=-0.20,95%CI:-0.28~-0.11,P<0.001;AL:WMD=0.09,95%CI:0.06~0.12,P<0.001)。结论:0.05%阿托品对SE及AL的控制效果优于0.025%及0.01%阿托品,但长期使用的副作用仍有待进一步观察。展开更多
AIM:To investigate the association between lumican gene-1554 T/C polymorphism and high myopia susceptibility.METHODS:We searched the published literature in the Medline,Embase,and CBM databases from inception to July ...AIM:To investigate the association between lumican gene-1554 T/C polymorphism and high myopia susceptibility.METHODS:We searched the published literature in the Medline,Embase,and CBM databases from inception to July 2013.A meta-analysis was performed by the programs RevMan 5.1 and Stata 12.0,and the odds ratio(OR) with 95% confidence interval(CI) was calculated in fixed or random effect model based on heterogeneity test among studies.RESLUTS:Seven case-control studies with a total of 1 233 cases and 936 controls were included.A statistical significant association with high myopia was observed in the recessive model(TT vs CT +CC:OR=1.92;95% CI=1.14-3.23) and codominant model(TT vs CT:OR=1.81,95%CI=1.19-2.75).CONCLUSION:The present meta-analysis suggested that lumican-1554 T/C polymorphism might be moderately associated with high myopia susceptibility.This conclusion warrants confirmation by further studies.展开更多
Genome-wide association studies(GWAS) of myopia and refractive error have generated exciting results and identified novel risk-associated loci. However, the interpretation of the findings of GWAS of complex diseases i...Genome-wide association studies(GWAS) of myopia and refractive error have generated exciting results and identified novel risk-associated loci. However, the interpretation of the findings of GWAS of complex diseases is not straightforward and has remained challenging. This review provides a brief summary of the main focus on the advantages and limitations of GWAS of myopia, with potential strategies that may contribute to further insight into the genetics of myopia in the post-GWAS or omics era.展开更多
Dear Editor,We report a case of traumatic carotid cavernous fistula(CCF)that initially presented in the Ophthalmology Department because of the ocular manifestations.CFF is a clinical syndrome characterized by ocular ...Dear Editor,We report a case of traumatic carotid cavernous fistula(CCF)that initially presented in the Ophthalmology Department because of the ocular manifestations.CFF is a clinical syndrome characterized by ocular abnormalities,which is caused by abnormal communication between the cavernous sinus and the cavernous segment or other meningeal branches of the internal carotid artery(ICA)due to traumatic or spontaneous factors.展开更多
基金Supported by Project of Science&Technology Department of Sichuan Province(No.2019YJ0381)Key Project of Sichuan Health and Family Planning Commission(No.18ZD022).
文摘AIM:To compare the visual performance of pseudophakic eyes implanted with Al-UV and SN60WF aspheric intraocular lens(IOL),and to investigate the correlations between visual quality parameters and pupil size.METHODS:This prospective comparative study included 105 eyes of 90 patients with age-related cataract who underwent uneventful phacoemulsification.The subjects were divided into two groups according to the implanted IOL type.Three months postoperatively,visual acuity and contrast sensitivity were measured,wave-front aberrations were assessed using a KR-IW aberrometer(Topcon),and objective optical quality parameters were performed using an optical quality analysis system-OQAS Il(Visiometrics).Independent sample Mest and Spearman correlation analysis were used for data analysis.RESULTS:There were no significant differences found in visual acuity,contrast sensitivity and visual quality parameters between the two groups(P>0.05).The measured intraocular spherical aberration(SA)in Al-UV IOL eyes of-0.19±0.05 pm was close to the designed SA value of-0.20 pm.The modulation transfer function cutoff,Strehl ratio and OQAS values were negatively correlated with pupil size in both groups(P<0.01).CONCLUSION:The subjective and objective visual quality in pseudophakic eyes with A1-UV and SN60WF IOLs are comparable.For aspheric IOL eyes,visual quality decreases with increasing pupil size.
文摘目的:系统评价低能量红光对于近视儿童脉络膜厚度(ChT)和等效球镜度(SE)及眼轴长度(AL)的影响。方法:通过检索Pubmed、Embase、Cochrane Library、Web of Science、中国知网、万方、维普网及中国生物医学文献数据库共8个数据库,从建库至2023-01期间所有关于低能量红光干预近视发展的随机对照试验,红光干预作为试验组,仅配戴单焦眼镜作为对照组。按照Cochrane手册要求进行文献质量及偏倚风险评价。Meta分析由Revman5.4软件完成。结果:共计纳入8篇有关低能量红光干预近视发展的随机对照试验研究。用于分析ChT变化的样本量为红光组407眼,对照组425眼;用于分析SE变化差值的样本量为红光组490眼,对照组518眼;纳入AL分析的样本量为红光组518眼,对照组539眼。红光组与对照组ChT、SE、AL比较均有差异(ChT:WMD=37.81,95%CI:21.55~54.07,P<0.001;SE:WMD=0.58,95%CI:0.46~0.71,P<0.001;AL:WMD=-0.31,95%CI:-0.39~-0.24,P<0.001)。结论:特定的红光有助于促进ChT而抑制SE及AL增加,但其远期效果及副作用尚不清楚,上述结论还需要更多大样本的随机对照研究进一步明确。
基金Supported by Project of Science&Technology Department of Sichuan Province (No.23NSFSC1940)City and College Cooperation (No.22SXFWDF0003)。
文摘·AIM: To investigate the effect of all-trans retinoic acid(ATRA) on retinol dehydrogenase 5(RDH5), matrix metalloproteinase-2(MMP-2) and transforming growth factor-β2(TGF-β2) transcription levels, and the effect of RDH5 on MMP-2 and TGF-β2 in retinal pigment epithelium(RPE) cells.·METHODS: After adult RPE cell line-19(ARPE-19 cells) intervened with gradient concentrations of ATRA(0-20 μmol/L) for 24h, flow cytometry was used to detect the proliferation and apoptosis of cells in each group, and quantitative realtime polymerase chain reaction(q RT-PCR) was used to detect RDH5, MMP-2 and TGF-β2 m RNA expression. Then, after ARPE-19 cells transfected with three different si RNA targets for 48h, the RDH5 knockdown efficiency of each group and expression of MMP-2 and TGF-β2 m RNA within them was detected by q RT-PCR. ·RESULTS: Flow cytometry results showed that ATRA could inhibit the proliferation of RPE cells and promote the apoptosis of RPE cells, and the difference of apoptosis was statistically significant when the ATRA concentration exceeded 5 μmol/L and compared with the normal control group(P=0.027 and P=0.031, respectively). q RT-PCR results showed that ATRA could significantly inhibit the expression level of RDH5 m RNA(P<0.001) and promote the expression of MMP-2 and TGF-β2 m RNA(P=0.03 and P<0.001, respectively) in a dose-dependent manner, especially when treated with 5 μmol/L ATRA. The knockdown efficiency of RDH5 si RNA varies with different targets, among which RDH5 si RNA-435 had the highest knockdown efficiency, i.e., more than 50% lower than that of the negative control group(P=0.02). When RDH5 was knocked down for 48h, the results of q RT-PCR showed that the expressions of MMP-2 and TGF-β2 m RNA were significantly up-regulated(P<0.001).·CONCLUSION: ATRA inhibits the expression of RDH5 and promotes MMP-2 and TGF-β2, and further RDH5 knockdown significantly upregulates MMP-2 and TGF-β2. These findings suggest that RDH5 may be involved in an epithelial-mesenchymal transition of RPE cells mediated by ATRA.
文摘AIM:To investigate the association between lumican gene-1554 T/C polymorphism and high myopia susceptibility.METHODS:We searched the published literature in the Medline,Embase,and CBM databases from inception to July 2013.A meta-analysis was performed by the programs RevMan 5.1 and Stata 12.0,and the odds ratio(OR) with 95% confidence interval(CI) was calculated in fixed or random effect model based on heterogeneity test among studies.RESLUTS:Seven case-control studies with a total of 1 233 cases and 936 controls were included.A statistical significant association with high myopia was observed in the recessive model(TT vs CT +CC:OR=1.92;95% CI=1.14-3.23) and codominant model(TT vs CT:OR=1.81,95%CI=1.19-2.75).CONCLUSION:The present meta-analysis suggested that lumican-1554 T/C polymorphism might be moderately associated with high myopia susceptibility.This conclusion warrants confirmation by further studies.
基金Supported by Projects of Science&Technology Department of Sichuan Province(No.2019YJ0381)
文摘Genome-wide association studies(GWAS) of myopia and refractive error have generated exciting results and identified novel risk-associated loci. However, the interpretation of the findings of GWAS of complex diseases is not straightforward and has remained challenging. This review provides a brief summary of the main focus on the advantages and limitations of GWAS of myopia, with potential strategies that may contribute to further insight into the genetics of myopia in the post-GWAS or omics era.
文摘Dear Editor,We report a case of traumatic carotid cavernous fistula(CCF)that initially presented in the Ophthalmology Department because of the ocular manifestations.CFF is a clinical syndrome characterized by ocular abnormalities,which is caused by abnormal communication between the cavernous sinus and the cavernous segment or other meningeal branches of the internal carotid artery(ICA)due to traumatic or spontaneous factors.
