Comparison of Diathermic high-frequency capsulorhexis and Femtosecond laser-assisted capsulorrhexis in white cataract surgery

Abstract Aim: To compare the integrity, roundness and diameter of the capsulotomy in the white cataract between femtosecond laser assisted capsulotomy and high-frequency capsulorhexis.Methods: The prospective study included 32 patients with white-nuclear cataracts, 16 of whom underwent femtosecond capsulorhexis and another 16 underwent diathermic high-frequency capsulorhexis. The integrity roundness and diameter of the capsulorhexis post-operation were compared.Results: Femtosecond group obtained 6 cases(37.5%)of complete capsular. No anterior capsule tear occurred. Diathermy high-frequency achieved continuous complete capsulor in 3 eyes(18.75%) and anterior capsule was teared in 13 eyes(81.25%). The femtosecond group has a mean capsular diameter of 5.4 mm, and the diathermic high-frequency group has an average capsular diameter of 6 mm. No posterior capsule tear occurred in both surgical procedures. Conclusions: Femtosecond laser-assisted cataract surgery can achieve high capsulor integrity and stable capsulorhexis diameter. Compared with the diathermic high-frequency capsulorhexis, the frequency of injecting the viscoelastic agent was reduced, and the tear of the capsule was less likely to occur. The continuous complete capsular(CCC) by femtosecond laser is more round, more complete ,more controllable and smoother than diathermy high-frequency(DHC).

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Femtosecond laser-assisted cataract surgery in management of posterior capsule tear following blunt trauma: Case report and review of literature

American Journal of Ophthalmology Case Reports ◽

10.1016/j.ajoc.2020.100742 ◽

2020 ◽

Vol 19 ◽

pp. 100742 ◽

Cited By ~ 1

Author(s):

Alisa J. Prager ◽

Surendra Basti

Keyword(s):

Case Report ◽

Femtosecond Laser ◽

Cataract Surgery ◽

Blunt Trauma ◽

Posterior Capsule ◽

Review Of Literature ◽

Posterior Capsule Tear ◽

Trauma Case

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Triggerfish Recording of IOP Patterns in Combined HFDS Minimally Invasive Glaucoma and Cataract Surgery: A Prospective Study

Journal of Clinical Medicine ◽

10.3390/jcm10163472 ◽

2021 ◽

Vol 10 (16) ◽

pp. 3472

Author(s):

Bojan Pajic ◽

Mirko Resan ◽

Brigitte Pajic-Eggspuehler ◽

Horace Massa ◽

Zeljka Cvejic

Keyword(s):

Circadian Rhythm ◽

Intraocular Pressure ◽

Minimally Invasive ◽

Prospective Study ◽

Cataract Surgery ◽

High Frequency ◽

Glaucoma Surgery ◽

Before And After ◽

Contact Lens Sensor ◽

A Prospective Study

Background: The aim of the study is to investigate whether the circadian IOP rhythm can be influenced by combined cataract surgery with high frequency deep sclerotomy (HFDS) and whether intraocular pressure (IOP) can be significantly reduced by HFDS. Methods: In our study 10 patients were included, in whom 24 h IOP monitoring was installed before and after HFDS/cataract surgery using a Triggerfish. HFDS is a minimally invasive glaucoma surgery (MIGS). Results: After performed HFDS combined with cataract surgery, the IOP was reduced from 27.7 ± 2.11 mmHg to 14.4 ± 2.59 mmHg, which is highly significant (p < 0.001). The contact lens sensor (CLS) cosinor analysis pre- and postoperatively showed that the circadian rhythm is not influenced by the surgery, i.e., the circadian IOP rhythm did not show significant differences before and after surgery. Conclusions: HFDS combined with cataract surgery is a potent surgical method that can significantly reduce the IOP. However, the circadian rhythm cannot be changed by the surgery. The acrophase remained during the night in all patients.

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Inadvertent Trypan Blue Staining of Posterior Capsule during Cataract Surgery Associated with “Argentinian Flag” Event

Case Reports in Ophthalmological Medicine ◽

10.1155/2016/9025063 ◽

2016 ◽

Vol 2016 ◽

pp. 1-3

Author(s):

Robert A. Prinzi ◽

Neeti M. Alapati ◽

Shawn S. Gappy ◽

Jason S. Dilly

Keyword(s):

Cataract Surgery ◽

Trypan Blue ◽

Rare Complication ◽

Posterior Capsule ◽

Blue Staining ◽

Anterior Surface ◽

Anterior Capsule ◽

Trypan Blue Staining ◽

First Case

Trypan blue is common in visualizing the anterior capsule during cataract surgery. Inadvertent staining of the posterior capsule during phacoemulsification is a rare complication and there are few reports in the literature. The proposed mechanism of posterior capsule staining in previous reports includes a compromised zonular apparatus or iris retractors facilitating the posterior flow of trypan blue. We report the first case of trypan blue staining of the posterior capsule associated with the “Argentinian flag” sign. In our case, the “Argentinian flag” allowed the trypan blue to seep between the posterior capsule and the lens, staining the anterior surface of the posterior capsule.

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Intraoperative Complications of Cataract Surgery Using Intracameral Illumination in the Elderly over 75 Years

Journal of Ophthalmology ◽

10.1155/2019/1594152 ◽

2019 ◽

Vol 2019 ◽

pp. 1-5

Author(s):

Yu Jeong Kim ◽

Su Jin Park ◽

Jong Yeon Lee ◽

Dae Yeong Lee ◽

Dong Heun Nam

Keyword(s):

Cataract Surgery ◽

Intraoperative Complications ◽

Case Series ◽

The Elderly ◽

Posterior Capsule ◽

Anterior Capsule ◽

Intraoperative Complication ◽

Surgery Group ◽

Posterior Capsule Rupture ◽

Capsule Rupture

Purpose. To evaluate intraoperative complications and utilization of adjunctive devices between microscope and intracameral illuminations during cataract surgery in the elderly over 75 years. Design. A retrospective, consecutive, interventional case series Participants. Two hundred eighty-six eyes of 184 patients older than 75 years who underwent cataract surgery using microscope and intracameral illuminations. Methods. A chart review was performed on an advanced cataract surgery group of 141 consecutive cases in which the intracameral illumination was used and on a standard cataract surgery group of 145 consecutive cases in which the intracameral illumination was not used. Main Outcome Measures. Intraoperative complications (posterior capsule rupture, radial tear of the anterior capsule, dropped nucleus, or sulcus-implanted/sclera-fixated IOL) and utilization of adjunctive devices (pupil expansion device or anterior capsule staining). Results. The frequency of use of the pupil expansion device was lower in the advanced cataract surgery group than that in the standard cataract surgery group (0.7% vs 6.9%; p=0.007). Furthermore, the rates of a posterior capsule rupture and at least one intraoperative complication were lower in the advanced cataract surgery group than those in the standard cataract surgery group (0.7% vs 4.8%; p=0.067) (0.7% vs 7.6%; p=0.004). Conclusions. In the current cohort of patients over 75 years, the rate of intraoperative complications was lower when using the intracameral illumination than that when using the conventional method. Cataract surgery using intracameral illumination would be good option for elderly people.

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Femtosecond laser combined with non-chopping rotation phacoemulsification technique for soft-nucleus cataract surgery: a prospective study

Scientific Reports ◽

10.1038/srep18684 ◽

2016 ◽

Vol 6 (1) ◽

Cited By ~ 2

Author(s):

Hui Chen ◽

Haotian Lin ◽

Wan Chen ◽

Bo Zhang ◽

Wu Xiang ◽

...

Keyword(s):

Femtosecond Laser ◽

Prospective Study ◽

Cataract Surgery ◽

A Prospective Study

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High Rate of Early Posterior Capsule Opacification following Femtosecond Laser-Assisted Cataract Surgery

Case Reports in Ophthalmology ◽

10.1159/000449124 ◽

2016 ◽

Vol 7 (3) ◽

pp. 491-495 ◽

Cited By ~ 12

Author(s):

Benjamin Rostami ◽

Jack Tian ◽

Nicholas Jackson ◽

Rustum Karanjia ◽

Kenneth Lu

Keyword(s):

Femtosecond Laser ◽

Cataract Surgery ◽

Postoperative Complication ◽

Retrospective Review ◽

Early Onset ◽

Posterior Capsule Opacification ◽

High Rate ◽

Posterior Capsule ◽

Time Period

Purpose: To compare the rates of rapid posterior capsule opacification (PCO) formation in the first 3 months following femtosecond laser-assisted cataract surgery (FLACS) to manual anterior capsulorhexis. Methods: Retrospective review of 29 cases of FLACS, comparing the rates of PCO in the first 3 months following surgery to 50 consecutive cases of manual anterior capsulorhexis. Results: Seven of the 29 FLACS cases developed PCO requiring capsulotomy at 3 months, while none of the control cases required a capsulotomy over the same time period (p < 0.05). Conclusion: There is an increased incidence of early-onset PCO following the use of femtosecond laser in cataract surgery that is otherwise unfounded in manual capsulorhexis. This suggests that the use of a femtosecond laser could increase the risk of this novel postoperative complication.

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Anterior capsule integrity after femtosecond laser–assisted cataract surgery

Journal of Cataract & Refractive Surgery ◽

10.1016/j.jcrs.2014.11.044 ◽

2015 ◽

Vol 41 (5) ◽

pp. 1109-1110 ◽

Cited By ~ 13

Author(s):

Timothy V. Roberts ◽

Michael Lawless ◽

Gerard Sutton ◽

Chris Hodge

Keyword(s):

Femtosecond Laser ◽

Cataract Surgery ◽

Anterior Capsule

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Reply: Hydrorupture of the posterior capsule in femtosecond-laser cataract surgery

Journal of Cataract & Refractive Surgery ◽

10.1016/j.jcrs.2012.01.019 ◽

2012 ◽

Vol 38 (4) ◽

pp. 730 ◽

Cited By ~ 2

Author(s):

Timothy V. Roberts ◽

Gerard Sutton ◽

Michael A. Lawless ◽

Shveta Bali-Jindal ◽

Chris Hodge

Keyword(s):

Femtosecond Laser ◽

Cataract Surgery ◽

Posterior Capsule

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Comparison of Maximum Stretch Forces between Femtosecond Laser-Assisted Capsulotomy and Continuous Curvilinear Capsulorhexis

Journal of Ophthalmology ◽

10.1155/2017/3489373 ◽

2017 ◽

Vol 2017 ◽

pp. 1-7 ◽

Cited By ~ 4

Author(s):

Mari Takagi ◽

Takashi Kojima ◽

Kei Ichikawa ◽

Yoshiki Tanaka ◽

Yukihito Kato ◽

...

Keyword(s):

Mechanical Properties ◽

Femtosecond Laser ◽

Cataract Surgery ◽

Anterior Capsule ◽

Variable Size ◽

Edge Strength ◽

Maximum Stretch ◽

Lower Maximum ◽

Over Time ◽

Porcine Eyes

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.

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