Comparison of Maximum Stretch Forces between Femtosecond Laser-Assisted Capsulotomy and Continuous Curvilinear Capsulorhexis
The current study reports comparing the postoperative mechanical properties of the anterior capsule between femtosecond laser capsulotomy (FLC) and continuous curvilinear capsulorhexis (CCC) of variable size and shape in porcine eyes. All CCCs were created using capsule forceps. Irregular or eccentr...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2017/3489373 |
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| author | Mari Takagi Takashi Kojima Kei Ichikawa Yoshiki Tanaka Yukihito Kato Rie Horai Akeno Tamaoki Kazuo Ichikawa |
| author_facet | Mari Takagi Takashi Kojima Kei Ichikawa Yoshiki Tanaka Yukihito Kato Rie Horai Akeno Tamaoki Kazuo Ichikawa |
| author_sort | Mari Takagi |
| collection | DOAJ |
| description | The current study reports comparing the postoperative mechanical properties of the anterior capsule between femtosecond laser capsulotomy (FLC) and continuous curvilinear capsulorhexis (CCC) of variable size and shape in porcine eyes. All CCCs were created using capsule forceps. Irregular or eccentric CCCs were also created to simulate real cataract surgery. For FLC, capsulotomies 5.3 mm in diameter were created using the LenSx® (Alcon) platform. Fresh porcine eyes were used in all experiments. The edges of the capsule openings were pulled at a constant speed using two L-shaped jigs. Stretch force and distance were recorded over time, and the maximum values in this regard were defined as those that were recorded when the capsule broke. There was no difference in maximum stretch force between CCC and FLC. There were no differences in circularity between FLC and same-sized CCC. However, same-sized CCC did show significantly higher maximum stretch forces than FLC. Teardrop-shaped CCC showed lower maximum stretch forces than same-sized CCC and FLC. Heart-shaped CCC showed lower maximum stretch forces than same-sized CCC. Conclusively, while capsule edge strength after CCC varied depending on size or irregularities, FLC had the advantage of stable maximum stretch forces. |
| format | Article |
| id | doaj-art-eeb97f41805844048a6c404145b5cf54 |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-eeb97f41805844048a6c404145b5cf542025-02-03T06:00:44ZengWileyJournal of Ophthalmology2090-004X2090-00582017-01-01201710.1155/2017/34893733489373Comparison of Maximum Stretch Forces between Femtosecond Laser-Assisted Capsulotomy and Continuous Curvilinear CapsulorhexisMari Takagi0Takashi Kojima1Kei Ichikawa2Yoshiki Tanaka3Yukihito Kato4Rie Horai5Akeno Tamaoki6Kazuo Ichikawa7Department of Ophthalmology, Japan Community Healthcare Organization Chukyo Hospital, Nagoya, JapanDepartment of Ophthalmology, Japanese Red Cross Gifu Hospital, Gifu, JapanDepartment of Ophthalmology, Japanese Red Cross Gifu Hospital, Gifu, JapanChukyo Medical Co., Inc., Nagoya, JapanChukyo Eye Clinic, Nagoya, JapanChukyo Medical Co., Inc., Nagoya, JapanDepartment of Ophthalmology, Japan Community Healthcare Organization Chukyo Hospital, Nagoya, JapanChukyo Eye Clinic, Nagoya, JapanThe current study reports comparing the postoperative mechanical properties of the anterior capsule between femtosecond laser capsulotomy (FLC) and continuous curvilinear capsulorhexis (CCC) of variable size and shape in porcine eyes. All CCCs were created using capsule forceps. Irregular or eccentric CCCs were also created to simulate real cataract surgery. For FLC, capsulotomies 5.3 mm in diameter were created using the LenSx® (Alcon) platform. Fresh porcine eyes were used in all experiments. The edges of the capsule openings were pulled at a constant speed using two L-shaped jigs. Stretch force and distance were recorded over time, and the maximum values in this regard were defined as those that were recorded when the capsule broke. There was no difference in maximum stretch force between CCC and FLC. There were no differences in circularity between FLC and same-sized CCC. However, same-sized CCC did show significantly higher maximum stretch forces than FLC. Teardrop-shaped CCC showed lower maximum stretch forces than same-sized CCC and FLC. Heart-shaped CCC showed lower maximum stretch forces than same-sized CCC. Conclusively, while capsule edge strength after CCC varied depending on size or irregularities, FLC had the advantage of stable maximum stretch forces.http://dx.doi.org/10.1155/2017/3489373 |
| spellingShingle | Mari Takagi Takashi Kojima Kei Ichikawa Yoshiki Tanaka Yukihito Kato Rie Horai Akeno Tamaoki Kazuo Ichikawa Comparison of Maximum Stretch Forces between Femtosecond Laser-Assisted Capsulotomy and Continuous Curvilinear Capsulorhexis Journal of Ophthalmology |
| title | Comparison of Maximum Stretch Forces between Femtosecond Laser-Assisted Capsulotomy and Continuous Curvilinear Capsulorhexis |
| title_full | Comparison of Maximum Stretch Forces between Femtosecond Laser-Assisted Capsulotomy and Continuous Curvilinear Capsulorhexis |
| title_fullStr | Comparison of Maximum Stretch Forces between Femtosecond Laser-Assisted Capsulotomy and Continuous Curvilinear Capsulorhexis |
| title_full_unstemmed | Comparison of Maximum Stretch Forces between Femtosecond Laser-Assisted Capsulotomy and Continuous Curvilinear Capsulorhexis |
| title_short | Comparison of Maximum Stretch Forces between Femtosecond Laser-Assisted Capsulotomy and Continuous Curvilinear Capsulorhexis |
| title_sort | comparison of maximum stretch forces between femtosecond laser assisted capsulotomy and continuous curvilinear capsulorhexis |
| url | http://dx.doi.org/10.1155/2017/3489373 |
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