Objectives: The study aimed to compare stereopsis, aniseikonia, and associated symptoms in bilateral pseudophakia with and without anisometropia. Methods: Patients with senile cataracts, previously scheduled for phaco...Objectives: The study aimed to compare stereopsis, aniseikonia, and associated symptoms in bilateral pseudophakia with and without anisometropia. Methods: Patients with senile cataracts, previously scheduled for phacoemulsification with an IOL implant in both eyes were included in this cross-sectional study. Patients were divided into two groups: control group (n = 69) with an interocular post-surgical refraction difference in Spherical Equivalent (SE) <sup>?</sup>;Stereotest. Ten symptoms related to aniseikonia were evaluated with a questionnaire. Statistical evaluation of data included models of univariate, multivariate, and regression analyses. Results: Cataract surgery-induced aniseikonia was 0.64% ± 1.41% in control group and 0.62% ± 1.76% in anisometropia group with an insignificant difference (p = 0.766). Measured stereoacuity was 1.95 ± 0.17 log10 seconds of arc in the control group and 2.12 ± 0.22 log10 seconds of arc in the anisometropia group with a significant difference (p Conclusions: The study showed that stereopsis, aniseikonia, and associated symptoms did not stand for a substantial problem for visual comfort of bilateral pseu- dophakia with anisometropia less than 3D.展开更多
AIM: To study the potential reasons of increased straylight in pseudophakic eyes. METHODS: Cross -sectional study. Seventy patients diagnosed as bilateral age-related cataract and implanted with Tecnis ZA9003, Sensar ...AIM: To study the potential reasons of increased straylight in pseudophakic eyes. METHODS: Cross -sectional study. Seventy patients diagnosed as bilateral age-related cataract and implanted with Tecnis ZA9003, Sensar AR40e, SA6OAT, XLSTABI ZO or Akeros AO intraocular lens (IOL) were enrolled in this research. Straylight was measured by a C -Quant straylight meter three to four weeks postoperatively. Five different modalities of IOL, including spherical/aspherical optics and hydrophobic/hydrophilic material were tested in this study. Normal as well as dilated pupils were used. The main outcome variable for straylight measurement was the logarithmic straylight parameter, log(s). RESULTS: The straylight parameter increased significantly after pupil dilation (P<0.05). Straylight of aspherical IOL was significantly higher after pupil dilation (P<0.06) compared to spherical IOL. In normal pupil, straylight of hydrophobic IOL was significant higher when compared with hydrophilic IOL (P<0.05). CONCLUSION: Straylight and visual acuity stand for the different aspects of visual function. Several factors including pupil diameter, optic material, aspherical design of IOL influence intraocular light scattering in pseudophakic eyes. Further investigation was needed to study the impact of optic material and optic surface design on pseudophakic straylight.展开更多
PSEUDOPHAKIC malignant glaucoma is diagnosedbased on the presence of a shallow or flat centraland peripheral anterior chamber in the presenceof patent iridectomy, with intraocular pressure（IOP） of 22 mm Hg or more a...PSEUDOPHAKIC malignant glaucoma is diagnosedbased on the presence of a shallow or flat centraland peripheral anterior chamber in the presenceof patent iridectomy, with intraocular pressure（IOP） of 22 mm Hg or more after lens extraction andintraocular lens implantation.1 Pseudophakic malignantglaucoma is one of the most challenging complicationsfaced by surgeons. Initial medication includes topicalcycloplegics, osmotic agents.展开更多
AIM: To evaluate a modified technique for scleral buckling(SB) in pseudophakic retinal detachment(RD).METHODS: A retrospective non-comparative study included 21 consecutive eyes with uncomplicated pseudophakic RD that...AIM: To evaluate a modified technique for scleral buckling(SB) in pseudophakic retinal detachment(RD).METHODS: A retrospective non-comparative study included 21 consecutive eyes with uncomplicated pseudophakic RD that was repaired by chandelier assisted SB using wide angle viewing(WAV) contact lens. Segmental tire alone was used in 5 eyes(23.81%), and combined with encircling band in 7 eyes(33.33%). Radial sponge alone was used in 3 eyes(14.29%) and combined with encircling band in 6 eyes(28.57%).RESULTS: Primary success rate was(90.48%). External drainage of subretinal fluid was performed in 8 eyes(38.1%). Intraoperative complications included vitreous prolapse at chandelier sclerotomy site in 4 eyes(19.05%) and localized subretinal hemorrhage at drainage site in one eye(4.76%). No case of intraocular lens(IOL) displacement, retinal incarceration or iatrogenic retinal tear was detected. Postoperative complications included choroidal detachment in one eye(4.76%), elevated intraocular pressure in 2 eyes(9.52%), epiretinal membrane formation in one eye(4.76%) and proliferative vitreoretinopathy in 3 eyes(14.29%). Mean postoperative corrected distance visual acuity was 0.7±0.3 logMAR units. CONCLUSION: Chandelier-assisted SB using WAV contact lens is a reliable technique for repairing selected cases of simple pseudophakic RD.展开更多
目的:观察儿童白内障摘除及人工晶状体植入后眼球及屈光状态的变化,探讨屈光状态变化的原因。方法:测量10例(12只眼)白内障患儿术前及术后(指本次随访时)的眼球轴长、角膜曲率及术后角膜顶点到人工晶状体前表面顶点的距离(The distance ...目的:观察儿童白内障摘除及人工晶状体植入后眼球及屈光状态的变化,探讨屈光状态变化的原因。方法:测量10例(12只眼)白内障患儿术前及术后(指本次随访时)的眼球轴长、角膜曲率及术后角膜顶点到人工晶状体前表面顶点的距离(The distance from the vertex of the cornea to the anteriorvertex of intraocular lens AVpc),比较术眼在手术前后的变化及与对照眼(未手术的对侧眼)在术前、术后的差异。在术后两周内及本次随访时检影,观察其人工晶状体眼屈光状态的变化。患儿手术时年龄7.16±1.94岁,随访时间平均35.8月(23～48月)。结果:术眼(n=12)眼轴长在术后平均增加0.39±0.48mm;对照眼(n=8)轴长增加0.66±0.68mm。术眼、对照眼在手术后眼轴长的增加均有显著的统计学意义(P<0.05),而术眼与对照眼的轴长增加量之间无显著性差异(P>0.05)。术眼、对照眼的角膜曲率在手术前后分别比较、双眼之间比较均无显著性差异(P>0.05)。术后测量的AVpc1为3.83±0.58mm,而估算的AVpc2为4.6630±0.2242mm,两者之间有显著的统计学差异(P<0.01),提示人工晶状体在眼内的位置前移0.8320±0.7441mm。根据手术前后眼轴长和角膜曲率值,按照SRKⅡ公式估算,在本次随访时人工晶状体眼有-1.53±1.70D(n=12,P<0.01)的屈光变化;展开更多
AIM:To evaluate the effect of silicone oil removal(SOR) on central corneal thickness(CCT) in aphakic and pseudophakic eyes prospectively.· METHODS:Patients who underwent SOR surgery between June 2005-August 2007 ...AIM:To evaluate the effect of silicone oil removal(SOR) on central corneal thickness(CCT) in aphakic and pseudophakic eyes prospectively.· METHODS:Patients who underwent SOR surgery between June 2005-August 2007 were included in this study.Silicon oil was actively removed behind the posterior capsule through the pars plana sclerotomy site(posterior approach) in pseudophakic eyes and through the pupil and the corneal tunnel incision(anterior approach) in aphakic eyes with the 18-gauge cannula.CCT was assessed with Orbscan II corneal topography system preoperatively and at one month and three months postoperatively.A total of 34 eyes of 34 patients(26 males,8 females) comprised the study group.Mean age was(55.6±12.3) years(Range:25-80 years).Twenty-six eyes(76.5%) were pseudophakic and 8(23.5%) aphakic.Mean time between silicone oil injection and removal was(15.1±13.6) months(Range:5-54 months).At baseline,CCT was 576.4±46.0μm in pseudophakic eyes and 611.6±36.2μm in aphakic eyes.· RESULTS:At the first postoperative month CCT was(573.3±40.1)μm and(630.9±72.9)μm in pseudophakic and aphakic eyes respectively.At the third postoperative month,CCT was(582.7±49.5)μm and(614.5±82.4)μm in pseudophakic and aphakic eyes respectively.There was no statistically significant difference in CCT measurements one month and 3 months after SOR when compared to preoperative values in both aphakic and pseudophakic eyes(P> 0.05).· CONCLUSION:Active SOR either by anterior or posterior approach did not affect the CCT.·展开更多
基金Zhejiang Key Innovation Team Project(No.2009R50039)Administration of Chinese Medicine of Zhejiang Province (No.2010ZA071)+1 种基金Zhejiang Science and Technology Department Public Project (No. 2010C33085)Natural Science Fund of Zhejiang Province (No.Y2100380)
文摘Objectives: The study aimed to compare stereopsis, aniseikonia, and associated symptoms in bilateral pseudophakia with and without anisometropia. Methods: Patients with senile cataracts, previously scheduled for phacoemulsification with an IOL implant in both eyes were included in this cross-sectional study. Patients were divided into two groups: control group (n = 69) with an interocular post-surgical refraction difference in Spherical Equivalent (SE) <sup>?</sup>;Stereotest. Ten symptoms related to aniseikonia were evaluated with a questionnaire. Statistical evaluation of data included models of univariate, multivariate, and regression analyses. Results: Cataract surgery-induced aniseikonia was 0.64% ± 1.41% in control group and 0.62% ± 1.76% in anisometropia group with an insignificant difference (p = 0.766). Measured stereoacuity was 1.95 ± 0.17 log10 seconds of arc in the control group and 2.12 ± 0.22 log10 seconds of arc in the anisometropia group with a significant difference (p Conclusions: The study showed that stereopsis, aniseikonia, and associated symptoms did not stand for a substantial problem for visual comfort of bilateral pseu- dophakia with anisometropia less than 3D.
文摘AIM: To study the potential reasons of increased straylight in pseudophakic eyes. METHODS: Cross -sectional study. Seventy patients diagnosed as bilateral age-related cataract and implanted with Tecnis ZA9003, Sensar AR40e, SA6OAT, XLSTABI ZO or Akeros AO intraocular lens (IOL) were enrolled in this research. Straylight was measured by a C -Quant straylight meter three to four weeks postoperatively. Five different modalities of IOL, including spherical/aspherical optics and hydrophobic/hydrophilic material were tested in this study. Normal as well as dilated pupils were used. The main outcome variable for straylight measurement was the logarithmic straylight parameter, log(s). RESULTS: The straylight parameter increased significantly after pupil dilation (P<0.05). Straylight of aspherical IOL was significantly higher after pupil dilation (P<0.06) compared to spherical IOL. In normal pupil, straylight of hydrophobic IOL was significant higher when compared with hydrophilic IOL (P<0.05). CONCLUSION: Straylight and visual acuity stand for the different aspects of visual function. Several factors including pupil diameter, optic material, aspherical design of IOL influence intraocular light scattering in pseudophakic eyes. Further investigation was needed to study the impact of optic material and optic surface design on pseudophakic straylight.
文摘PSEUDOPHAKIC malignant glaucoma is diagnosedbased on the presence of a shallow or flat centraland peripheral anterior chamber in the presenceof patent iridectomy, with intraocular pressure（IOP） of 22 mm Hg or more after lens extraction andintraocular lens implantation.1 Pseudophakic malignantglaucoma is one of the most challenging complicationsfaced by surgeons. Initial medication includes topicalcycloplegics, osmotic agents.
文摘AIM: To evaluate a modified technique for scleral buckling(SB) in pseudophakic retinal detachment(RD).METHODS: A retrospective non-comparative study included 21 consecutive eyes with uncomplicated pseudophakic RD that was repaired by chandelier assisted SB using wide angle viewing(WAV) contact lens. Segmental tire alone was used in 5 eyes(23.81%), and combined with encircling band in 7 eyes(33.33%). Radial sponge alone was used in 3 eyes(14.29%) and combined with encircling band in 6 eyes(28.57%).RESULTS: Primary success rate was(90.48%). External drainage of subretinal fluid was performed in 8 eyes(38.1%). Intraoperative complications included vitreous prolapse at chandelier sclerotomy site in 4 eyes(19.05%) and localized subretinal hemorrhage at drainage site in one eye(4.76%). No case of intraocular lens(IOL) displacement, retinal incarceration or iatrogenic retinal tear was detected. Postoperative complications included choroidal detachment in one eye(4.76%), elevated intraocular pressure in 2 eyes(9.52%), epiretinal membrane formation in one eye(4.76%) and proliferative vitreoretinopathy in 3 eyes(14.29%). Mean postoperative corrected distance visual acuity was 0.7±0.3 logMAR units. CONCLUSION: Chandelier-assisted SB using WAV contact lens is a reliable technique for repairing selected cases of simple pseudophakic RD.
文摘目的:观察儿童白内障摘除及人工晶状体植入后眼球及屈光状态的变化,探讨屈光状态变化的原因。方法:测量10例(12只眼)白内障患儿术前及术后(指本次随访时)的眼球轴长、角膜曲率及术后角膜顶点到人工晶状体前表面顶点的距离(The distance from the vertex of the cornea to the anteriorvertex of intraocular lens AVpc),比较术眼在手术前后的变化及与对照眼(未手术的对侧眼)在术前、术后的差异。在术后两周内及本次随访时检影,观察其人工晶状体眼屈光状态的变化。患儿手术时年龄7.16±1.94岁,随访时间平均35.8月(23～48月)。结果:术眼(n=12)眼轴长在术后平均增加0.39±0.48mm;对照眼(n=8)轴长增加0.66±0.68mm。术眼、对照眼在手术后眼轴长的增加均有显著的统计学意义(P<0.05),而术眼与对照眼的轴长增加量之间无显著性差异(P>0.05)。术眼、对照眼的角膜曲率在手术前后分别比较、双眼之间比较均无显著性差异(P>0.05)。术后测量的AVpc1为3.83±0.58mm,而估算的AVpc2为4.6630±0.2242mm,两者之间有显著的统计学差异(P<0.01),提示人工晶状体在眼内的位置前移0.8320±0.7441mm。根据手术前后眼轴长和角膜曲率值,按照SRKⅡ公式估算,在本次随访时人工晶状体眼有-1.53±1.70D(n=12,P<0.01)的屈光变化;
文摘AIM:To evaluate the effect of silicone oil removal(SOR) on central corneal thickness(CCT) in aphakic and pseudophakic eyes prospectively.· METHODS:Patients who underwent SOR surgery between June 2005-August 2007 were included in this study.Silicon oil was actively removed behind the posterior capsule through the pars plana sclerotomy site(posterior approach) in pseudophakic eyes and through the pupil and the corneal tunnel incision(anterior approach) in aphakic eyes with the 18-gauge cannula.CCT was assessed with Orbscan II corneal topography system preoperatively and at one month and three months postoperatively.A total of 34 eyes of 34 patients(26 males,8 females) comprised the study group.Mean age was(55.6±12.3) years(Range:25-80 years).Twenty-six eyes(76.5%) were pseudophakic and 8(23.5%) aphakic.Mean time between silicone oil injection and removal was(15.1±13.6) months(Range:5-54 months).At baseline,CCT was 576.4±46.0μm in pseudophakic eyes and 611.6±36.2μm in aphakic eyes.· RESULTS:At the first postoperative month CCT was(573.3±40.1)μm and(630.9±72.9)μm in pseudophakic and aphakic eyes respectively.At the third postoperative month,CCT was(582.7±49.5)μm and(614.5±82.4)μm in pseudophakic and aphakic eyes respectively.There was no statistically significant difference in CCT measurements one month and 3 months after SOR when compared to preoperative values in both aphakic and pseudophakic eyes(P> 0.05).· CONCLUSION:Active SOR either by anterior or posterior approach did not affect the CCT.·
