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Chen Z, Jia W, Chen T, Shen X, Wang Y, Sun Y, Jiang Y. Safety and efficacy of capsular tension ring and capsular hook implantation for managing ectopia lentis in Marfan syndrome: real-world study. J Cataract Refract Surg 2024; 50:698-706. [PMID: 38409756 DOI: 10.1097/j.jcrs.0000000000001434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 02/21/2024] [Indexed: 02/28/2024]
Abstract
PURPOSE To evaluate the safety and efficacy of capsular tension ring and capsular hook (CTR-CH) implantation in Marfan syndrome (MFS) patients with ectopia lentis (EL). SETTING Eye and ENT Hospital of Fudan University, Shanghai, China. DESIGN Retrospective propensity score-matched cohort study. METHODS This study included patients with MFS who had in-the-bag intraocular lens (IOL) implantation assisted by CTR-CH or modified CTR (MCTR). The safety analysis focused on the resurgery rate. The efficacy analysis compared the corrected distance visual acuity (CDVA) and the incidence of laser capsulotomy after propensity score matching (PSM). RESULTS This study encompassed 148 eyes that had the CTR-CH procedure and 162 eyes that received MCTR implantation. In the CTR-CH group, the median age at the time of surgery was 5 years, with a mean follow-up duration of 1.81 ± 0.4 years. 5 eyes (3.38%) required a second surgery because of retinal detachment (2, 1.35%), IOL decentration (2, 1.35%), and CH dislocation (1, 0.68%). The resurgery rate was comparable with that of the MCTR group ( P = .486). After PSM, a total of 108 eyes were recruited in each group. Postoperative CDVA was significantly improved in both groups (both P < .001), but comparable between the groups ( P = .057). The posterior capsular opacification took place earlier ( P = .046) while the anterior capsular opacification required laser capsulotomy at a later stage ( P = .037) compared with the MCTR group. CONCLUSIONS The CTR-CH procedure was a feasible, safe, and efficient approach for managing EL in patients with MFS.
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Affiliation(s)
- Zexu Chen
- From the Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China (Z. Chen, Jia, T. Chen, Shen, Wang, Sun, Jiang); NHC Key Laboratory of Myopia, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China (Z. Chen, Jia, T. Chen, Shen, Wang, Sun, Jiang); Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China (Z. Chen, Jia, T. Chen, Shen, Wang, Sun, Jiang)
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Raj A, Kumar A, Sinha U, Nishant P. Double capsular tension rings in cataracts with large subluxations. BMJ Case Rep 2023; 16:e253291. [PMID: 37751986 PMCID: PMC10533707 DOI: 10.1136/bcr-2022-253291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023] Open
Abstract
Management of subluxated cataracts is challenging, especially in cases with more than 5 clock hours of subluxation. Capsular bag stabilising devices are of utmost importance in these cases. We report two cases of post-traumatic lens subluxation of more than 6 clock hours, in which the bag was stabilised intraoperatively using two capsular tension rings (CTRs) placed diametrically opposite to each other, in place of the conventional Cionni ring. Slow phacoemulsification was done followed by intraocular lens (IOL) implantation. Postoperatively, the IOLs were found to be well centred. Also, the use of two CTRs maintains the shape of the capsular bag and prevents lens epithelial cell migration and capsular cocontraction.
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Affiliation(s)
- Amit Raj
- Ophthalmology, All India Institute of Medical Sciences - Patna, Patna, Bihar, India
| | - Amit Kumar
- Ophthalmology, All India Institute of Medical Sciences - Patna, Patna, Bihar, India
| | - Upasna Sinha
- Radio Diagnosis and Imaging, All India Institute of Medical Sciences - Patna, Patna, Bihar, India
| | - Prateek Nishant
- Ophthalmology, All India Institute of Medical Sciences - Patna, Patna, Bihar, India
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Intrascleral Fixation of Implantable Polypropylene Capsular Hook(s) to Reconstruct Capsular Support for Out-of-the-Bag Intraocular Lens Fixation in Vitrectomized Eyes. Retina 2022; 42:1816-1821. [PMID: 31021902 DOI: 10.1097/iae.0000000000002554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kato M, Namba M, Shimoyama S, Inoue M, Ouchi C, Shimizu T. Intrascleral Intraocular Lens Fixation Preserving the Lens Capsule in Cases of Cataract with Insufficient Zonular Support. Clin Ophthalmol 2022; 16:93-100. [PMID: 35046634 PMCID: PMC8761028 DOI: 10.2147/opth.s344523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/21/2021] [Indexed: 11/24/2022] Open
Abstract
Purpose To report our modified simple technique for optic capture and the clinical results of intrascleral IOL fixation preserving the lens capsule, without vitrectomy, in cases of cataract with insufficient zonular support to stabilize the intraocular lens (IOL). Patients and Methods In 37 eyes of 25 patients with phacodonesis and two or more risk factors for progressive zonular insufficiency, we inserted a CTR to support the capsule and zonules during cataract surgery and IOL fixation; an optic was inserted into the lens capsule, and a haptic was fixed in the scleral tunnel without vitrectomy. In all cases, anterior or total vitrectomy was not needed. Results The postoperative mean (± standard deviation) tilt and decentration of the implanted IOL did not change from 6 to 12 months (6.77 ± 3.15° to 6.33 ± 3.38° and 0.60 ± 0.30 to 0.61 ± 0.35 mm, respectively). We encountered no late IOL dislocation and no retinal complications, including retinal breaks or cystoid macular oedema, postoperatively (follow-up = 21.1 ± 5.2 months). Conclusion Our modified techniques preclude the need for vitrectomy. If the lens capsule can be preserved using a CTR, our modified technique can be used to stabilize IOL.
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Affiliation(s)
- Mutsuko Kato
- Department of Ophthalmology, Japan Red Cross Okayama Hospital, Okayama, Japan
| | - Michie Namba
- Department of Ophthalmology, Japan Red Cross Okayama Hospital, Okayama, Japan
| | - Sachika Shimoyama
- Department of Ophthalmology, Japan Red Cross Okayama Hospital, Okayama, Japan
| | - Mayumi Inoue
- Department of Ophthalmology, Japan Red Cross Okayama Hospital, Okayama, Japan
| | - Chihiro Ouchi
- Department of Ophthalmology, Japan Red Cross Okayama Hospital, Okayama, Japan
| | - Takehiro Shimizu
- Department of Ophthalmology, Japan Red Cross Okayama Hospital, Okayama, Japan
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Goldfeather Ben-Zaken S, Kleinmann G. Results of using the AssiAnchor capsule device for subluxated crystalline lenses. Indian J Ophthalmol 2021; 69:3511-3514. [PMID: 34826985 PMCID: PMC8837323 DOI: 10.4103/ijo.ijo_576_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Purpose: To describe our results with the AssiAnchor capsule device in cases of subluxated crystalline lenses. Methods: This was a retrospective consecutive case series. Seven eyes of four patients with subluxated crystalline lenses underwent lensectomy/phacoemulsification with intraocular lens (IOL) implantation using the AssiAnchor capsule device in the Kaplan medical center, ophthalmology department. Three patients had Marfan syndrome and one patient had experienced blunt trauma. Demographic data were collected as well as parameters of pre- and postoperative distance visual acuity and refraction, intra-, and postoperative complications, and IOL stability and centration. Results: Six out of the seven surgical procedures were uneventful with in-the-bag implantation of the IOL. In the first surgery, a tear of the capsular bag lead to IOL exchanging and fixating to the AssiAnchor and to the iris. In the traumatic cataract case, two AssiAnchors were used. A capsular tension ring was implanted in six out of seven surgeries. The average follow-up time was 9.5 ± 6.8 months. All the IOLs were stable and well centered except for the first IOL that exhibited a slight temporal, but not clinically significant, decentration. The distance visual acuity and the refractive parameters improved significantly in all cases. Conclusion: We found the AssiAnchor capsule device an effective tool with a short learning curve for treating subluxated lenses.
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Affiliation(s)
- Shalhevet Goldfeather Ben-Zaken
- Department of Ophthalmology, Kaplan Medical Center, Rehovot, Israel, Affiliated with the Hebrew University and Hadassah Medical Center, Jerusalem, Israel
| | - Guy Kleinmann
- Department of Ophthalmology, Edith Wolfson Medical Center, Holon, Israel, Affiliated with the Tel Aviv University Tel Aviv, Israel
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Chee SP, Ti SE, Chan NSW. Management of the subluxated crystalline lens: A review. Clin Exp Ophthalmol 2021; 49:1091-1101. [PMID: 34264007 DOI: 10.1111/ceo.13975] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/04/2021] [Accepted: 07/13/2021] [Indexed: 11/29/2022]
Abstract
Cataract surgery for the subluxated crystalline lens is challenging. A thorough preoperative evaluation is important to determine the appropriate surgical approach for lens removal and the subsequent technique of intraocular lens placement. Important considerations include the extent and location of zonular weakness, and whether the zonular deficiency is caused by a static or progressive disease. The capsular bag should be preserved where possible. Creating a good-sized and centred continuous curvilinear capsulorhexis is crucial to facilitate the use of capsular retractors and capsular tension devices, which provide capsular stability. Nucleus sculpting and rotation should be minimised to reduce zonular stress. Being cognisant of the possible intraoperative complications that may occur at each stage of the surgery and knowing how to reduce the risk of these complications occurring will enable surgeons to perform safe cataract surgery in these complex cases.
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Affiliation(s)
- Soon-Phaik Chee
- Singapore National Eye Centre, Singapore.,Singapore Eye Research Institute, Singapore.,Ophthalmology and Visual Sciences, Duke-National University of Singapore Graduate Medical School, Singapore.,Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Seng-Ei Ti
- Singapore National Eye Centre, Singapore.,Singapore Eye Research Institute, Singapore.,Ophthalmology and Visual Sciences, Duke-National University of Singapore Graduate Medical School, Singapore
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Evaluation of the Utility of Capsular Stabilization Devices in a Zonular Fiber Defect Model with the Slit Side View System. J Ophthalmol 2020; 2020:5921965. [PMID: 32832137 PMCID: PMC7429767 DOI: 10.1155/2020/5921965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/16/2020] [Indexed: 11/18/2022] Open
Abstract
Capsular stabilization devices were evaluated in a zonular fiber defect model using the slit side view (SSV) system to confirm their utility for capsular stabilization during phacoemulsification. A zonular fiber defect model was made by cutting Zinn’s zonule under observation with a slit lamp microscope in a porcine eye. Phacoemulsification was performed, and the movement of the lens capsule and the depth of the anterior chamber were observed using the SSV in three groups: control group: no surgical instruments used, CE group: a capsule expander was inserted, and CTR group: a capsular tension ring was inserted. In the control group, the equator of the lens was unstable and was easily suctioned to the port of the ultrasound handpiece. The lens capsule was stable in both in the CE and CTR groups. In the CTR group, the equator responsible for the zonular rupture also returned and closed true to its original position. The utility of the capsular stabilization devices in this zonular fiber defect model was confirmed with the SSV system.
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Intrascleral Fixation of Implantable Polypropylene Capsular Hook(s): A Sutureless Technique to Fixate the Capsular Bag for Intraocular Lens Implantation in Subluxated Lenses. Retina 2018; 39 Suppl 1:S33-S38. [PMID: 30586352 DOI: 10.1097/iae.0000000000002425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kumar DA, Sivangnanam S, Agarwal A, Samiullah SB, Das S. Short-term fluctuation of lens corneal distance and clinical correlation with phacodonesis. Graefes Arch Clin Exp Ophthalmol 2017; 256:567-573. [PMID: 29279994 DOI: 10.1007/s00417-017-3862-z] [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: 03/22/2017] [Revised: 11/13/2017] [Accepted: 12/11/2017] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND To analyze the role of short-term lens-corneal distance (LCD) fluctuation in quantifying preoperative phacodonesis and predicting intraoperative zonular weakness. METHODS Patients were divided into control (lens without clinical phacodonesis) and study (lens with suspicious and clinical phacodonesis) groups for evaluation. Slit-lamp examination followed by IOLMaster (Carl Zeiss) for LCD assessment was performed. Five readings were taken at five time points (0 s, 15 s, 30 s, 45 s & 60 s) continuously over a minute (short term) for the LCD fluctuation calculation. RESULTS A total of 135 eyes (82 controls and 53 study) were assessed. Study group included 32 (60.3%) suspicious and 21 (39.6%) moderate to severe phacodonesis. There was difference between the control and study eyes (p = 0.000) in short-term LCD fluctuation. Twenty-one study eyes (39.6%) showed LCD difference > 1 mm, including 11 eyes (52.3%) with > 2 mm. There was a difference in LCD with respect to severity of phacodonesis (p = 0.000). In the study eyes, 13 eyes underwent glued IOL implantation (clinical phacodonesis - ten, suspicious phacodonesis - three), and two eyes (suspicious phacodonesis) had glued capsular hook. Thirteen eyes (clinical phacodonesis - ten, suspicious phacodonesis - three) required intraoperative vitrectomy due to vitreous ingress. Intraoperative zonular weakness in 62.5% of eyes with suspicious donesis and association (Chi-square = 0.000) of weakness with preoperative LCD fluctuation was noted. CONCLUSIONS Short-term lens-corneal distance fluctuation can be used as a parameter for quantifying lens stability and as an aid in assessing the intraoperative risk.
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Affiliation(s)
- Dhivya Ashok Kumar
- Dr. Agarwal's Eye Hospital and Eye Research Centre, 19 Cathedral Road, Chennai, 600 086, India
| | - Soundari Sivangnanam
- Dr. Agarwal's Eye Hospital and Eye Research Centre, 19 Cathedral Road, Chennai, 600 086, India
| | - Amar Agarwal
- Dr. Agarwal's Eye Hospital and Eye Research Centre, 19 Cathedral Road, Chennai, 600 086, India.
| | - Sumaiya Banu Samiullah
- Dr. Agarwal's Eye Hospital and Eye Research Centre, 19 Cathedral Road, Chennai, 600 086, India
| | - Sanjiv Das
- Dr. Agarwal's Eye Hospital and Eye Research Centre, 19 Cathedral Road, Chennai, 600 086, India
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Intrascleral Fixation of Implantable Polypropylene Capsular Hook(s): A New Sutureless Technique to Reposition Dislocated Intraocular Lens-Capsular Bag Complex. Retina 2017; 39 Suppl 1:S44-S49. [PMID: 29135890 DOI: 10.1097/iae.0000000000001915] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zeng Y, Fan L, Lu P. Use of the chop hook to stabilize the capsular bag in patients with crystalline lens dislocations and cataracts. J Int Med Res 2017; 45:849-855. [PMID: 28367670 PMCID: PMC5536656 DOI: 10.1177/0300060517701290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 03/03/2017] [Indexed: 11/30/2022] Open
Abstract
Objective To observe the treatment effects of chop hook-assisted phacoemulsification surgery in patients with crystalline lens dislocation. Methods Thirty-seven eyes with cataracts and crystalline lens dislocations underwent cataract surgery. An L-shaped chop hook was introduced into the anterior chamber, and the tip was pushed or pulled to the centre of the anterior capsular edge of the zonular dialysis during the cataract operation. Postoperative follow-up was conducted for ≥ 1 month. Results All patients' postoperative visual abilities improved except one patient with glaucoma. One patient who underwent -5D intraocular lens implantation exhibited vision of 1/50. Visual acuity was less than 6/20 in 6 eyes, 6/20 to 10/20 in 7 eyes, and greater than 10/20 in 22 eyes. Conclusions L-shaped chop hooks can be used to push or pull the anterior capsular edge of the zonular dialysis for protection and avoidance of further zonular damage. This strategy provides satisfactory effects and reduces use of additional instruments.
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Affiliation(s)
- Yanfeng Zeng
- Soochow University Lixiang Eye Hospital, Ganjiang Road, Suzhou City, China
| | | | - Peirong Lu
- Department of Ophthalmology, the First Affiliated Hospital of Soochow University, China
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Abstract
BACKGROUND Complete removal of the cortex has been advocated to prevent posterior capsular opacification but carries the risk of zonular dehiscence, hence there is a need for a safe maximal cortical cleanup technique in eyes with severe diffuse zonulopathy in subjects above age 90. METHODS We used bimanual central cortical cleaning by elevating central fibers and aspirating them toward the periphery. Peripheral cortical fibers were removed passively only when they became loose due to copious irrigation. A one-piece foldable implant was inserted without a capsular tension ring. Postoperative corticosteroid drops were used. RESULTS This technique was safely performed in a dozen eyes with severe pseudo-exfoliation or brunescent cataract with weak zonules. Posterior capsular rupture, iritis, vitreous loss, and lens subluxation were not observed. Moderate capsular phimosis occurred but with maintained central vision. CONCLUSION The dogma of "complete cortical cleanup" in severe zonulopathy needs to be revisited in favor of a clear visual axis with maximal preservation of the damaged zonules. This technique is ideal in patients above age 90 where posterior capsular opacification and late dislocation of intraocular lens-capsule bag complex are unlikely to occur until several years postoperatively.
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Affiliation(s)
- Ahmad M Mansour
- Department of Ophthalmology, American University of Beirut, Beirut, Lebanon; Department of Ophthalmology, Rafic Hariri University Hospital, Beirut, Lebanon
| | - Rafic S Antonios
- Department of Ophthalmology, American University of Beirut, Beirut, Lebanon
| | - Iqbal Ike K Ahmed
- Department of Ophthalmology, University of Toronto, Toronto, ON, Canada
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