The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform
Ibrahim Taskin - One of the best experts on this subject based on the ideXlab platform.
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vacuum assisted continuous circular capsulorhexis using bimanual irrigation and aspiration system of phaco machine in immature cataract
Journal of Ophthalmology, 2013Co-Authors: Huseyin Oksuz, Mutlu Cihan Daglioglu, Mesut Coskun, Ozgur Ilhan, Esra Ayhan Tuzcu, Nilufer Ilhan, Emre Ayintap, Ugurcan Keskin, Ibrahim TaskinAbstract:Seventy-eight eye of 65 patients were enrolled in this retrospective clinical study. Two-side ports are made with a 23-gauge stiletto knife. The irrigation handpiece is introduced into the anterior chamber through one side port and 27-gauge Cystotome is introduced through the other one. Anterior capsular flap is created with Cystotome. The capsular flap is vacuumed with a 25-gauge visco elastic’s cannula, which connected to the phaco machine vacuum. The continuous circular capsulorhexis (CCC) is completed with the using bimanual irrigation and aspiration system of phaco machine. Vacuum-assisted CCC technique was used in 78 cases of uncomplicated immature senile cataracts. All cases were done under sub-Tenon’s anesthesia. A complete CCC was achieved in all cases. Performing CCC with our technique is easy, safe, and cheap. It may be an alternative method to CCC by using OVD and forceps.
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Vacuum-Assisted Continuous Circular Capsulorhexis Using Bimanual Irrigation and Aspiration System of Phaco Machine in Immature Cataract
Hindawi Limited, 2013Co-Authors: Huseyin Oksuz, Mutlu Cihan Daglioglu, Mesut Coskun, Ozgur Ilhan, Esra Ayhan Tuzcu, Nilufer Ilhan, Emre Ayintap, Ugurcan Keskin, Ibrahim TaskinAbstract:Seventy-eight eye of 65 patients were enrolled in this retrospective clinical study. Two-side ports are made with a 23-gauge stiletto knife. The irrigation handpiece is introduced into the anterior chamber through one side port and 27-gauge Cystotome is introduced through the other one. Anterior capsular flap is created with Cystotome. The capsular flap is vacuumed with a 25-gauge visco elastic’s cannula, which connected to the phaco machine vacuum. The continuous circular capsulorhexis (CCC) is completed with the using bimanual irrigation and aspiration system of phaco machine. Vacuum-assisted CCC technique was used in 78 cases of uncomplicated immature senile cataracts. All cases were done under sub-Tenon’s anesthesia. A complete CCC was achieved in all cases. Performing CCC with our technique is easy, safe, and cheap. It may be an alternative method to CCC by using OVD and forceps
Xu Chen - One of the best experts on this subject based on the ideXlab platform.
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a comparison of the Cystotome assisted prechop and phaco chop phacoemulsification nucleotomy techniques
Medical Science Monitor, 2019Co-Authors: Lianqun Wu, Xu Chen, Yan-wen Zhou, Xiaoling An, Sen BiAbstract:: BACKGROUND The aim of this study was to compare the intra-operative parameters and post-operative outcomes of cataract surgery performed using the Cystotome-assisted prechop (CAP) and phaco-chop techniques. MATERIAL AND METHODS Fifty-two eyes with age-related cataract in the CAP group, and 63 eyes in the phaco-chop group were enrolled for analysis in this study, and the surgical outcomes were reported 1 day and/or 1 week, and 1 month post-operatively. RESULTS The CAP technique was associated with statistically significantly lower cumulative dissipated energy compared with the phaco-chop technique (P<0.001). The mean endothelial cell loss in the CAP group was statistically significantly lower than that of the phaco-chop group 1 week (5.6±5.9% versus 8.8±8.7%, P=0.020) and 1 month post-operatively (6.3±6.8% versus 9.8±9.9%, P=0.026). The change in the central corneal thickness between the 2 groups was significantly different at 1 day post-operatively (3.3±3.1% versus 4.9±4.6%, P=0.036). The change in the 8.0 mm central corneal volume between the 2 groups was significantly different at 1 day and 1 week post-operatively (6.5±6.1% versus 10.9±7.9%, P=0.001; 3.2±4.7% versus 5.4±5.7%, P=0.029, respectively). CONCLUSIONS The CAP technique showed lower ultrasound energy consumption and less endothelial damage and corneal edema than the phaco-chop technique. It might therefore prove a cost-effective prechop method for cataract surgery.
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A Comparison of the Cystotome-Assisted Prechop and Phaco-Chop Phacoemulsification Nucleotomy Techniques.
Medical science monitor : international medical journal of experimental and clinical research, 2019Co-Authors: Xu Chen, Yan-wen ZhouAbstract:BACKGROUND The aim of this study was to compare the intra-operative parameters and post-operative outcomes of cataract surgery performed using the Cystotome-assisted prechop (CAP) and phaco-chop techniques. MATERIAL AND METHODS Fifty-two eyes with age-related cataract in the CAP group, and 63 eyes in the phaco-chop group were enrolled for analysis in this study, and the surgical outcomes were reported 1 day and/or 1 week, and 1 month post-operatively. RESULTS The CAP technique was associated with statistically significantly lower cumulative dissipated energy compared with the phaco-chop technique (P
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Cystotome-assisted prechop technique.
Journal of cataract and refractive surgery, 2015Co-Authors: Xu Chen, Yang Xiao, Baosong Liu, Xiaojun Hao, Lei ShiAbstract:We describe a manual prechop technique to divide the nucleus using a Cystotome. In the Cystotome-assisted prechop technique, after the capsulorhexis, the surgeon-bent Cystotome is inserted into the lens while the Nagahara chopper is set around the lens equator. The Cystotome and the chopper are then brought together in the center to create a bisecting crack in the nucleus, dividing it cleanly into 2 hemispheres. Financial Disclosure No author has a financial or proprietary interest in any material or method mentioned.
Weitao Song - One of the best experts on this subject based on the ideXlab platform.
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Comparison of clinical outcomes between Cystotome-assisted prechop phacoemulsification surgery and conventional phacoemulsification surgery for hard nucleus cataracts: A CONSORT-compliant article
Medicine, 2018Co-Authors: Ying Tian, Yujue Wang, Xiaobo Xia, Weitao SongAbstract:BACKGROUND This study aimed to investigate the safety and efficacy of the Cystotome-assisted prechop phacoemulsification surgery (CAPPS) and conventional phacoemulsification surgery (CPS) in patients with IV degree nucleus cataract. METHODS The prospective, randomized, consecutive, comparative cohort study consecutively recruited Chinese age-related cataract patients, CAPPS and CPS were performed by a seasoned surgeon. Postoperative follow-up was at 1 day, 1 week, 1 month, 3 months, 6 months, and 1 year, and the outcome measures comprised ultrasound power, effective phacoemulsification time (EPT), corrected distance visual acuity (CDVA), endothelial cell density (ECD), corneal endothelium loss rate (ECL), central corneal thickness (CCT), and intraoperative and postoperative complications. RESULTS Patients in both groups gained a better CDVA postoperatively. The ultrasound power and EPT in the CAPPS group were lower than the CPS group (P
Huseyin Oksuz - One of the best experts on this subject based on the ideXlab platform.
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vacuum assisted continuous circular capsulorhexis using bimanual irrigation and aspiration system of phaco machine in immature cataract
Journal of Ophthalmology, 2013Co-Authors: Huseyin Oksuz, Mutlu Cihan Daglioglu, Mesut Coskun, Ozgur Ilhan, Esra Ayhan Tuzcu, Nilufer Ilhan, Emre Ayintap, Ugurcan Keskin, Ibrahim TaskinAbstract:Seventy-eight eye of 65 patients were enrolled in this retrospective clinical study. Two-side ports are made with a 23-gauge stiletto knife. The irrigation handpiece is introduced into the anterior chamber through one side port and 27-gauge Cystotome is introduced through the other one. Anterior capsular flap is created with Cystotome. The capsular flap is vacuumed with a 25-gauge visco elastic’s cannula, which connected to the phaco machine vacuum. The continuous circular capsulorhexis (CCC) is completed with the using bimanual irrigation and aspiration system of phaco machine. Vacuum-assisted CCC technique was used in 78 cases of uncomplicated immature senile cataracts. All cases were done under sub-Tenon’s anesthesia. A complete CCC was achieved in all cases. Performing CCC with our technique is easy, safe, and cheap. It may be an alternative method to CCC by using OVD and forceps.
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Vacuum-Assisted Continuous Circular Capsulorhexis Using Bimanual Irrigation and Aspiration System of Phaco Machine in Immature Cataract
Hindawi Limited, 2013Co-Authors: Huseyin Oksuz, Mutlu Cihan Daglioglu, Mesut Coskun, Ozgur Ilhan, Esra Ayhan Tuzcu, Nilufer Ilhan, Emre Ayintap, Ugurcan Keskin, Ibrahim TaskinAbstract:Seventy-eight eye of 65 patients were enrolled in this retrospective clinical study. Two-side ports are made with a 23-gauge stiletto knife. The irrigation handpiece is introduced into the anterior chamber through one side port and 27-gauge Cystotome is introduced through the other one. Anterior capsular flap is created with Cystotome. The capsular flap is vacuumed with a 25-gauge visco elastic’s cannula, which connected to the phaco machine vacuum. The continuous circular capsulorhexis (CCC) is completed with the using bimanual irrigation and aspiration system of phaco machine. Vacuum-assisted CCC technique was used in 78 cases of uncomplicated immature senile cataracts. All cases were done under sub-Tenon’s anesthesia. A complete CCC was achieved in all cases. Performing CCC with our technique is easy, safe, and cheap. It may be an alternative method to CCC by using OVD and forceps
Tamsin J. Sleep - One of the best experts on this subject based on the ideXlab platform.
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Video Article A Novel Capsulorhexis Technique Using Shearing Forces with Cystotome
2016Co-Authors: Shah M. R. Karim, Chin T. Ong, Tamsin J. SleepAbstract:doi:10.3791/1962 (2010). Purpose: To demonstrate a capsulorhexis technique using predominantly shearing forces with a Cystotome on a virtual reality simulator and on a human eye. Method: Our technique involves creating the initial anterior capsular tear with a Cystotome to raise a flap. The flap left unfolded on the lens surface. The Cystotome tip is tilted horizontally and is engaged on the flap near the leading edge of the tear. The Cystotome is moved in a circular fashion to direct the vector forces. The loose flap is constantly swept towards the centre so that it does not obscure the view on the tearing edge. Results: Our technique has the advantage of reducing corneal wound distortion and subsequent anterior chamber collapse. The capsulorhexis flap is moved away from the tear leading edge allowing better visualisation of the direction of tear. This technique offers superior control of the capsulorhexis by allowing the surgeon to change the direction of the tear to achieve the desired capsulorhexis size. Conclusions: The EYESI Surgical Simulator is a realistic training platform for surgeons to practice complex capsulorhexis techniques. The shearing forces technique is a suitable alternative and in some cases a far better technique in achieving the desired capsulorhexis
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Journal of Visualized Experiments www.jove.com Video Article A Novel Capsulorhexis Technique Using Shearing Forces with Cystotome
2013Co-Authors: Shah M. R. Karim, Chin T. Ong, Tamsin J. SleepAbstract:Purpose: To demonstrate a capsulorhexis technique using predominantly shearing forces with a Cystotome on a virtual reality simulator and on a human eye. Method: Our technique involves creating the initial anterior capsular tear with a Cystotome to raise a flap. The flap left unfolded on the lens surface. The Cystotome tip is tilted horizontally and is engaged on the flap near the leading edge of the tear. The Cystotome is moved in a circular fashion to direct the vector forces. The loose flap is constantly swept towards the centre so that it does not obscure the view on the tearing edge. Results: Our technique has the advantage of reducing corneal wound distortion and subsequent anterior chamber collapse. The capsulorhexis flap is moved away from the tear leading edge allowing better visualisation of the direction of tear. This technique offers superior control of the capsulorhexis by allowing the surgeon to change the direction of the tear to achieve the desired capsulorhexis size. Conclusions: The EYESI Surgical Simulator is a realistic training platform for surgeons to practice complex capsulorhexis techniques. The shearing forces technique is a suitable alternative and in some cases a far better technique in achieving the desired capsulorhexis. Protoco
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A Novel Technique of Rescuing Capsulorhexis Radial Tear-out using a Cystotome
Journal of Visualized Experiments, 2011Co-Authors: Shah M. R. Karim, Chin T. Ong, Mizanur R. Miah, Tamsin J. Sleep, Abdul HanifudinAbstract:Part 1 : Purpose: To demonstrate a capsulorhexis radial tear out rescue technique using a Cystotome on a virtual reality cataract surgery simulator and in a human eye. Part 2 : Method: Steps: When a capsulorhexis begins to veer radially towards the periphery beyond the pupillary margin the following steps should be applied without delay. 2.1) Stop further capsulorhexis manoeuvre and reassess the situation. 2.2) Fill the anterior chamber with ophthalmic viscosurgical device (OVD). We recommend mounting the Cystotome to a syringe containing OVD so that the anterior chamber can be reinflated rapidly. 2.3) The capsulorhexis flap is then left unfolded on the lens surface. 2.4) The Cystotome tip is tilted horizontally to avoid cutting or puncturing the flap and is engaged on the flap near the leading edge of the tear but not too close to the point of tear. 2.5) Gently push or pull the leading edge of tear opposite to the direction of tear. 2.6) The leading tearing edge will start to do a 'U-Turn'. Maintain the tension on the flap until the tearing edge returns to the desired trajectory. Part 3 : Results: Using our technique, a surgeon can respond instantly to radial tear out without having to change surgical instruments. Changing surgical instruments at this critical stage runs a risk of further radial tear due to sudden shallowing of anterior chamber as a result of forward pressure from the vitreous. Our technique also has the advantage of reducing corneal wound distortion and subsequent anterior chamber collapse. Part 4 : Discussion The EYESI Surgical Simulator is a realistic training platform for surgeons to practice complex capsulorhexis tear-out techniques. Capsulorhexis is the most important and complex part of phacoemulsification and endocapsular intraocular lens implantation procedure. A successful cataract surgery depends on achieving a good capsulorhexis. During capsulorhexis, surgeons may face a challenging situation like a capsulorhexis radial tear-out. A surgeon must learn to tackle the problem promptly without making the situation worse. Some other methods of rescuing the situation have been described using a capsulorhexis forceps. However, we believe our method is quicker, more effective and easier to manipulate as demonstrated on the EYESi surgical simulator and on a human eye. Acknowledgments: List acknowledgements and funding sources. We would like to thank Dr. Wael El Gendy, for video clip. Disclosures: describe potential conflicting interests or state We have nothing to disclose. References: 1. Brian C. Little, Jennifer H. Smith, Mark Packer. J Cataract Refract Surg 2006; 32:1420 1422, Issue-9. 2. Neuhann T. Theorie und Operationstechnik der Kapsulorhexis. Klin Monatsbl Augenheilkd. 1987; 1990: 542-545. 3. Gimbel HV, Neuhann T. Development, advantages and methods of the continuous circular capsulorhexis technique. J Cataract Refract Surg. 1990; 16: 31-37. 4. Gimbel HV, Neuhann T. Continuous curvilinear capsulorhexis. (letter) J Cataract Refract Sur. 1991; 17: 110-111.
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A novel capsulorhexis technique using shearing forces with Cystotome.
Journal of Visualized Experiments, 2010Co-Authors: Shah M. R. Karim, Chin T. Ong, Tamsin J. SleepAbstract:Purpose: To demonstrate a capsulorhexis technique using predominantly shearing forces with a Cystotome on a virtual reality simulator and on a human eye. Method: Our technique involves creating the initial anterior capsular tear with a Cystotome to raise a flap. The flap left unfolded on the lens surface. The Cystotome tip is tilted horizontally and is engaged on the flap near the leading edge of the tear. The Cystotome is moved in a circular fashion to direct the vector forces. The loose flap is constantly swept towards the centre so that it does not obscure the view on the tearing edge. Results: Our technique has the advantage of reducing corneal wound distortion and subsequent anterior chamber collapse. The capsulorhexis flap is moved away from the tear leading edge allowing better visualisation of the direction of tear. This technique offers superior control of the capsulorhexis by allowing the surgeon to change the direction of the tear to achieve the desired capsulorhexis size. Conclusions: The EYESI Surgical Simulator is a realistic training platform for surgeons to practice complex capsulorhexis techniques. The shearing forces technique is a suitable alternative and in some cases a far better technique in achieving the desired capsulorhexis.
