AIMTo compare the intraoperative performance and postoperative outcome after microcoaxial torsional phacoemulsification using either a Kelman or balanced phaco tip.METHODSCataracts were treated using 2.2 mm microcoaxi...AIMTo compare the intraoperative performance and postoperative outcome after microcoaxial torsional phacoemulsification using either a Kelman or balanced phaco tip.METHODSCataracts were treated using 2.2 mm microcoaxial torsional phacoemulsification using either a 45-degree mini-flared Kelman<sup>®</sup> or a 45-degree Intrepid<sup>®</sup> Balanced phaco tip. Intraoperative measurements included total ultrasound (US) time, cumulative dissipated energy (CDE), torsional US time, and balanced salt solution (BSS) use. The central endothelial cell density (ECD) and central corneal thickness (CCT) were evaluated preoperatively and postoperatively 1, 7, and 30d after surgery using noncontact specular microscopy.RESULTSThe 116 enrolled eyes (116 patients) were divided equally between the Kelman and balanced tip groups. Intraoperative measurements showed significantly less total US time, torsional US time, CDE, and BSS use in the balanced group than in Kelman group (P<0.05). The total US time, torsional US time, CDE, and BSS use were 17.45±14.53s, 16.63±13.97s, 6.38±5.26, and 48.21±17.21 mL in the Kelman group and 11.39 ± 9.60s, 10.90 ± 9.25s, 4.04 ± 3.42, and 41.36 ± 12.70 mL in the balanced group, respectively.CONCLUSIONTorsional phacoemulsification performed with a balanced tip provided more effective lens removal with less total US time, torsional time, CDE, and BSS use, as well as similar changes in ECD with a Kelman tip in all cataract grades. This special designed phaco tip for torsional phacoemulsification provides an alternative phaco tip for many surgeons' preference with straight phaco tip.展开更多
Objective: To study the postoperative evolution of corneal astigmatism following phaco-alternative at the University Hospital Center of Ouémé-Plateau (UHC-OP) in Porto-Novo. Method: This was a prospective, c...Objective: To study the postoperative evolution of corneal astigmatism following phaco-alternative at the University Hospital Center of Ouémé-Plateau (UHC-OP) in Porto-Novo. Method: This was a prospective, cross-sectional study with a descriptive and analytical purpose conducted from April 19 to September 20, 2021;a period of 6 months. The study included all patients presenting with senile or non-senile cataracts without a history of corneal trauma and who underwent phaco-alternative during the study period. Results: A total of 62 eyes underwent phaco-alternative. The average age was 63 ± 12 years with a male predominance of 59.7%. Phaco-alternative was performed with 74.2% linear incision and 25.8% smile incision. Perioperative incidents were mainly capsular ruptures with vitreous loss occurring in 8.1% of cases. The mean preoperative astigmatism was 1.29 ± 1.5 D with an axis of 180˚ ± 20˚, indicating with-the-rule astigmatism. The mean postoperative astigmatism was 2.2 ± 1.5 D with an axis of 90˚ ± 20˚, indicating against-the-rule astigmatism. The mean induced astigmatism at Day 30 was 1.4 ± 1.2 D for smile incision and 1.8 ± 1.2 D for linear incision. Conclusion: Phaco-alternative yields good results with few complications but remains astigmatogenic. The smile incision appears to be less astigmatogenic.展开更多
目的观察白内障并发闭眼角型青光眼患者的临床治疗工作现状,分析行Phaco、人工晶体植入联合小梁切除术治疗的临床效果及术后并发症情况。方法借助统计软件将2018年1月至2019年12月期间在枣庄市薛城区人民医院眼科接受手术治疗的70例白...目的观察白内障并发闭眼角型青光眼患者的临床治疗工作现状,分析行Phaco、人工晶体植入联合小梁切除术治疗的临床效果及术后并发症情况。方法借助统计软件将2018年1月至2019年12月期间在枣庄市薛城区人民医院眼科接受手术治疗的70例白内障并发闭眼角型青光眼患者分为两组,对照组接受Phaco、人工晶体植入术治疗,研究组接受Phaco、人工晶体植入联合小梁切除术治疗,两组患者对比手术前后视力情况、眼内压力、超声生物显微镜指标、手术治疗效果及术后并发症情况。结果两组患者手术前视力[(4.52±0.11)比(4.50±0.13)]、眼压[(37.09±3.81)mmHg比(37.05±3.83)mmHg,1 mmHg=0.133 kPa]比较差异均无统计学意义(均P>0.05);研究组患者手术后视力提升情况高于对照组[(4.99±0.43)比(4.60±0.54)](P<0.05),而眼压低于对照组[(11.52±1.42)mmHg比(25.66±1.21)mmHg](P<0.05);两组患者手术前超声生物显微镜指标比较差异均无统计学意义(均P>0.05),研究组患者手术后30 d ACD、TIA、TCPD指标数值均高于对照组(均P<0.05),而AOD500指标数值低于对照组(P<0.05);研究组患者手术疗效评价高于对照组[97.14%(34/35)比68.87%(24/35)],而术后并发症发生率低于对照组[2.86%(1/35)比37.14%(13/35)],两组比较差异有统计学意义(P<0.05)。结论白内障并发闭眼角型青光眼患者接受Phaco、人工晶体植入、小梁切除术三联治疗,可有效改善视力、眼压及房角结果,减少术后并发症率,提高手术疗效,该三联治疗方式在临床上具有较高应用价值。展开更多
Purpose: To evaluate the performance of a phacoemulsification system in terms of effective (EPT) and total phaco time (TPT) using 20G and 21G phaco tips. Methods: Retrospective comparative study including 143 consecut...Purpose: To evaluate the performance of a phacoemulsification system in terms of effective (EPT) and total phaco time (TPT) using 20G and 21G phaco tips. Methods: Retrospective comparative study including 143 consecutive cataractous eyes undergoing phacoemulsification cataract surgery with the Visalis 500 device. The 20G and 21G phaco tips were used in 46 and 97 eyes, respectively. The EPT and TPT values were evaluated. Results: Median TPT was 11.25 s and 17.50 s in the 20G and 21G groups, respectively (p = 0.0011). Median EPT values were 3.15 s and 5.00 s in the 20G and 21G groups, respectively (p = 0.0032). TPT and EPT were significantly lower in 3/3+ cataract eyes compared to 4/4+ using both tips (p < 0.001). Conclusions: The Visalis 500 allows cataract surgery with reduced TPT and EPT, even in hard cataracts. The use of the 20G phaco tip provides an additional benefit in terms of reduction of phaco time.展开更多
Dear Editor,We read with interest the article ＂Comparison of 45-degree Kelman and 45-degree balanced phaco tip designs in torsional microcoaxial phacoemulsification＂ by Demircan et al. The authors describe the intra...Dear Editor,We read with interest the article ＂Comparison of 45-degree Kelman and 45-degree balanced phaco tip designs in torsional microcoaxial phacoemulsification＂ by Demircan et al. The authors describe the intraoperative and post-operative outcomes of phacoemulsification in terms of cumulative dissipated energy （CDE）, total ultrasound （US） time, torsional US time, total fluid use, percentage change in central corneal thickness and endothelial cell count in the two groups. A comparative evaluation has been made between the two groups involving the Kelman mini-flared tip and the Intrepid balanced phaco tip using the Infiniti Ozil IP Vision system （Alton Laboratories Inc., Fort Worth, TX, USA） as hasbeen explicitly mentioned in the article under the ＂Methods＂ section. However,展开更多
文摘AIMTo compare the intraoperative performance and postoperative outcome after microcoaxial torsional phacoemulsification using either a Kelman or balanced phaco tip.METHODSCataracts were treated using 2.2 mm microcoaxial torsional phacoemulsification using either a 45-degree mini-flared Kelman<sup>®</sup> or a 45-degree Intrepid<sup>®</sup> Balanced phaco tip. Intraoperative measurements included total ultrasound (US) time, cumulative dissipated energy (CDE), torsional US time, and balanced salt solution (BSS) use. The central endothelial cell density (ECD) and central corneal thickness (CCT) were evaluated preoperatively and postoperatively 1, 7, and 30d after surgery using noncontact specular microscopy.RESULTSThe 116 enrolled eyes (116 patients) were divided equally between the Kelman and balanced tip groups. Intraoperative measurements showed significantly less total US time, torsional US time, CDE, and BSS use in the balanced group than in Kelman group (P<0.05). The total US time, torsional US time, CDE, and BSS use were 17.45±14.53s, 16.63±13.97s, 6.38±5.26, and 48.21±17.21 mL in the Kelman group and 11.39 ± 9.60s, 10.90 ± 9.25s, 4.04 ± 3.42, and 41.36 ± 12.70 mL in the balanced group, respectively.CONCLUSIONTorsional phacoemulsification performed with a balanced tip provided more effective lens removal with less total US time, torsional time, CDE, and BSS use, as well as similar changes in ECD with a Kelman tip in all cataract grades. This special designed phaco tip for torsional phacoemulsification provides an alternative phaco tip for many surgeons' preference with straight phaco tip.
文摘Objective: To study the postoperative evolution of corneal astigmatism following phaco-alternative at the University Hospital Center of Ouémé-Plateau (UHC-OP) in Porto-Novo. Method: This was a prospective, cross-sectional study with a descriptive and analytical purpose conducted from April 19 to September 20, 2021;a period of 6 months. The study included all patients presenting with senile or non-senile cataracts without a history of corneal trauma and who underwent phaco-alternative during the study period. Results: A total of 62 eyes underwent phaco-alternative. The average age was 63 ± 12 years with a male predominance of 59.7%. Phaco-alternative was performed with 74.2% linear incision and 25.8% smile incision. Perioperative incidents were mainly capsular ruptures with vitreous loss occurring in 8.1% of cases. The mean preoperative astigmatism was 1.29 ± 1.5 D with an axis of 180˚ ± 20˚, indicating with-the-rule astigmatism. The mean postoperative astigmatism was 2.2 ± 1.5 D with an axis of 90˚ ± 20˚, indicating against-the-rule astigmatism. The mean induced astigmatism at Day 30 was 1.4 ± 1.2 D for smile incision and 1.8 ± 1.2 D for linear incision. Conclusion: Phaco-alternative yields good results with few complications but remains astigmatogenic. The smile incision appears to be less astigmatogenic.
文摘目的观察白内障并发闭眼角型青光眼患者的临床治疗工作现状,分析行Phaco、人工晶体植入联合小梁切除术治疗的临床效果及术后并发症情况。方法借助统计软件将2018年1月至2019年12月期间在枣庄市薛城区人民医院眼科接受手术治疗的70例白内障并发闭眼角型青光眼患者分为两组,对照组接受Phaco、人工晶体植入术治疗,研究组接受Phaco、人工晶体植入联合小梁切除术治疗,两组患者对比手术前后视力情况、眼内压力、超声生物显微镜指标、手术治疗效果及术后并发症情况。结果两组患者手术前视力[(4.52±0.11)比(4.50±0.13)]、眼压[(37.09±3.81)mmHg比(37.05±3.83)mmHg,1 mmHg=0.133 kPa]比较差异均无统计学意义(均P>0.05);研究组患者手术后视力提升情况高于对照组[(4.99±0.43)比(4.60±0.54)](P<0.05),而眼压低于对照组[(11.52±1.42)mmHg比(25.66±1.21)mmHg](P<0.05);两组患者手术前超声生物显微镜指标比较差异均无统计学意义(均P>0.05),研究组患者手术后30 d ACD、TIA、TCPD指标数值均高于对照组(均P<0.05),而AOD500指标数值低于对照组(P<0.05);研究组患者手术疗效评价高于对照组[97.14%(34/35)比68.87%(24/35)],而术后并发症发生率低于对照组[2.86%(1/35)比37.14%(13/35)],两组比较差异有统计学意义(P<0.05)。结论白内障并发闭眼角型青光眼患者接受Phaco、人工晶体植入、小梁切除术三联治疗,可有效改善视力、眼压及房角结果,减少术后并发症率,提高手术疗效,该三联治疗方式在临床上具有较高应用价值。
文摘Purpose: To evaluate the performance of a phacoemulsification system in terms of effective (EPT) and total phaco time (TPT) using 20G and 21G phaco tips. Methods: Retrospective comparative study including 143 consecutive cataractous eyes undergoing phacoemulsification cataract surgery with the Visalis 500 device. The 20G and 21G phaco tips were used in 46 and 97 eyes, respectively. The EPT and TPT values were evaluated. Results: Median TPT was 11.25 s and 17.50 s in the 20G and 21G groups, respectively (p = 0.0011). Median EPT values were 3.15 s and 5.00 s in the 20G and 21G groups, respectively (p = 0.0032). TPT and EPT were significantly lower in 3/3+ cataract eyes compared to 4/4+ using both tips (p < 0.001). Conclusions: The Visalis 500 allows cataract surgery with reduced TPT and EPT, even in hard cataracts. The use of the 20G phaco tip provides an additional benefit in terms of reduction of phaco time.
文摘Dear Editor,We read with interest the article ＂Comparison of 45-degree Kelman and 45-degree balanced phaco tip designs in torsional microcoaxial phacoemulsification＂ by Demircan et al. The authors describe the intraoperative and post-operative outcomes of phacoemulsification in terms of cumulative dissipated energy （CDE）, total ultrasound （US） time, torsional US time, total fluid use, percentage change in central corneal thickness and endothelial cell count in the two groups. A comparative evaluation has been made between the two groups involving the Kelman mini-flared tip and the Intrepid balanced phaco tip using the Infiniti Ozil IP Vision system （Alton Laboratories Inc., Fort Worth, TX, USA） as hasbeen explicitly mentioned in the article under the ＂Methods＂ section. However,
