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Abstract
PURPOSE OF REVIEW Continuous curvilinear manual capsulorhexis is currently the standard of cataract surgery. In the past several years, new technologies have been developed to improve the consistency and safety of capsulorhexis creation. This article reviews the most recent technologies in capsulotomy formation and their advantages and disadvantages. RECENT FINDINGS Guidance devices, femtosecond laser capsulotomy and precision pulse capsulotomy improve the centration, circularity and precision of anterior capsulorhexis and capsulotomy. These developments show particular promise for complex cataract surgeries, though clinical data on the refractive outcomes and complication rates of these technologies are currently limited and warrant additional investigation. SUMMARY New technological advances in capsulorhexis help surgeons achieve a more ideal capsulotomy geometry. Whether this translates into more predictable refractive outcomes and safer surgeries remains an area of future study.
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Lee JH, Lee YE, Joo CK. Clinical results of the open ring PMMA guider assisted capsulorrhexis in cataract surgery. BMC Ophthalmol 2018; 18:116. [PMID: 29747619 PMCID: PMC5946449 DOI: 10.1186/s12886-018-0782-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 04/30/2018] [Indexed: 11/25/2022] Open
Abstract
Background To compare the results of continuous curvilinear capsulorrhexis(CCC) after application of an open ring-shaped guider compared with a free-hand procedure in eyes with cataracts. Methods This study comprised patients undergoing cataract surgery in Seoul St.Mary’s Hospital, The Catholic University of Korea. Eyes were grouped depending on the capsulotomy method; CCC was performed by free-hand procedure on 94 eyes (free-hand group), and it was performed under the guidance after introduction of an open ring-shaped guider on consecutive 89 eyes (guided group). Horizontal and vertical diameter, area and circularity of capsulotomy were measured postoperatively at one day, two months and six months. Differences in parameters and the percentage of ideal capsulorrhexis were analyzed between the two groups. Results On the first postoperative day, the vertical diameter in the guided group (5.24 ± 0.16 mm) was significantly longer than that of the free-hand group (5.01 ± 0.65 mm, P = 0.019). The area of capsulotomy was larger in the guided group (21.55 ± 0.87 mm2) than that of the free-hand group (20.34 ± 2.96 mm2, P < 0.001). Circularity in the guided group (0.84 ± 0.03), was significantly greater than that of the free-hand group (0.69 ± 0.17, P = 0.036). Ideal capsulorrhexis was obtained in 60 eyes (67%) in the free-hand group and 81 eyes (86%) in the guided group. Conclusions After introduction of an open ring-shaped guider, CCC became larger and more circular with less anterior capsular contracture. The rate of acquiring ideal capsulorrhexis was higher in the guided group than it was in the free-hand group for six months after surgery.
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Affiliation(s)
- Jee Hye Lee
- Department of Ophthalmology & Visual Science, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea
| | | | - Choun-Ki Joo
- Department of Ophthalmology & Visual Science, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea.
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Liu B, Gao J, Lyu BC, Du SS, Pei C, Zhu ZQ, Ma B. Expressions of TGF-β2, bFGF and ICAM-1 in lens epithelial cells of complicated cataract with silicone oil tamponade. Int J Ophthalmol 2017; 10:1034-1039. [PMID: 28730103 DOI: 10.18240/ijo.2017.07.03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 02/07/2017] [Indexed: 11/23/2022] Open
Abstract
AIM To investigate the expression differences of transforming growth factor-β2 (TGF-β2), basic fibroblast growth factor (bFGF) and intercellular cell-adhesion molecule-1 (ICAM-1) in lens epithelial cells (LECs) of complicated cataract with silicone oil tamponade and age-related cataract. METHODS Totally 150 eyes of 150 patients (aged 35 to 77y) were investigated, including 75 patients with complicated cataract after silicone oil tamponade and 75 patients with age-related cataract. The central piece of anterior capsules was collected during cataract surgery. TGF-β2, bFGF and ICAM-1 were detected in the 60 specimens of the two groups by immunohistochemistry. The expression levels of the three kinds of messenger ribonucleic acid (mRNA) were determined by real-time quantitative reverse transcription-polymerase chain reaction in the 90 specimens of the two groups. RESULTS TGF-β2 was detected in the cytomembrane and cytoplasm of the LECs and bFGF was detected in the nucleus. ICAM-1 was positive in the cytomembrane of the LECs and the distribution of positive cells was uneven. The mRNA genes expression of the TGF-β2, bFGF and ICAM-1 was significant differences between the two groups and markedly increased in complicated cataract group (P<0.05). CONCLUSION The up-regulated TGF-β2, bFGF and ICAM-1 maybe associate with the occurrence and development of complicated cataract with silicone oil tamponade.
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Affiliation(s)
- Bei Liu
- Shaanxi Ophthalmic Medical Center, Xi'an No.4 Hospital, the Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China.,Department of Ophthalmology, the First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Jing Gao
- Department of Ophthalmology, the First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Bo-Chang Lyu
- Shaanxi Ophthalmic Medical Center, Xi'an No.4 Hospital, the Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Shan-Shuang Du
- Shaanxi Ophthalmic Medical Center, Xi'an No.4 Hospital, the Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Cheng Pei
- Department of Ophthalmology, the First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Zhong-Qiao Zhu
- Shaanxi Ophthalmic Medical Center, Xi'an No.4 Hospital, the Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Bo Ma
- Shaanxi Ophthalmic Medical Center, Xi'an No.4 Hospital, the Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
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