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Parekh Z, Wang J, Qiu M. Outcomes of slow coagulation transscleral cyclophotocoagulation in a predominantly African American glaucoma population. Am J Ophthalmol Case Rep 2024; 35:102072. [PMID: 38841152 PMCID: PMC11152606 DOI: 10.1016/j.ajoc.2024.102072] [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: 03/21/2024] [Revised: 04/19/2024] [Accepted: 04/26/2024] [Indexed: 06/07/2024] Open
Abstract
Purpose To evaluate outcomes of slow coagulation transscleral cyclophotocoagulation (SC-TSCPC) in a primarily African American patient population with glaucoma. Methods A retrospective chart review was performed for 104 consecutive cases of SC-TSCPC by a single surgeon between November 6, 2019-September 7, 2023. Power ranged from 1150 to 1500 mW, duration was 4 s, and number of spots ranged from 10 to 25. Exclusion criteria were diagnosis of neovascular glaucoma, prior CPC, visual acuity (VA) of no light perception or unable to be assessed due to patient's mental status, aphakia, or follow-up <3 months. The primary outcome measure was surgical success defined as an intraocular pressure (IOP) of 6-21 mmHg with a ≥20 % reduction from baseline, no glaucoma re-operation, and no loss of light-perception. Secondary outcome measures included VA, glaucoma medication use, and post-surgical complications. Analysis was also stratified by lens status as literature suggests a greater IOP-lowering effect in pseudophakic eyes after CPC. Results There were 28 eligible patients (6 phakic, 22 pseudophakic) included in this analysis. Mean follow-up was 11.6 ± 8.3 months, and 14 patients had postoperative year 1 data available. The mean age was 75.2 ± 13.9 years, 42.9 % were female, and 92.9 % were African American, reflective of the demographics of the local community. The cumulative success rate was 68.5 % at 1 year and did not differ significantly between phakic and pseudophakic patients. Mean VA worsened from 20/600 preoperatively to 20/1050 at last follow-up (P = 0.04) and was marginally worse in the phakic group (P = 0.15). Mean IOP decreased from 31.1 ± 13.2 mmHg on 4.0 ± 1.5 medications preoperatively to 13.8 ± 7.1 mmHg on 2.6 ± 1.5 medications at last follow-up (P < 0.001; P < 0.01), with a more pronounced effect among pseudophakic patients. 85.7 % of patients had prolonged anterior chamber (AC) inflammation beyond 1 month, which persisted in 10.7 % at last follow-up. The cystoid macular edema (CME) rate was 21.4 %, with 10.7 % persistent at last follow-up. Conclusions SC-TSCPC is an effective, non-incisional IOP-lowering procedure in phakic and pseudophakic eyes that may not otherwise be ideal candidates for incisional glaucoma surgery. Pseudophakic eyes may experience larger reductions in IOP, however, laser settings can be titrated on a case-by-case basis depending on individual patients' goals. There was a higher incidence of prolonged AC inflammation and CME in our cohort compared to similar studies which report rates of 12.7 % and 2.7 %, respectively. Although the significance of such complications may differ based on the visual potential of each patient, these findings support existing literature that African American patients can have greater incidence of inflammation and subsequent sequalae after ocular surgery.
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Affiliation(s)
- Zaid Parekh
- The University of Chicago Pritzker School of Medicine, Chicago, IL, USA
| | - Jessie Wang
- Department of Ophthalmology & Visual Sciences, University of Chicago, Chicago, IL, USA
| | - Mary Qiu
- Department of Ophthalmology & Visual Sciences, University of Chicago, Chicago, IL, USA
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Almeida INF, Resende ICTP, Magalhães LM, Oliveira HKA, Kanadani FN, Prata TS. Double-Arc Slow-Coagulation Transscleral Cyclophotocoagulation Laser Protocol: One-Year Effectiveness and Safety Outcomes. Ophthalmol Glaucoma 2024:S2589-4196(24)00103-0. [PMID: 38971523 DOI: 10.1016/j.ogla.2024.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/07/2024] [Accepted: 06/28/2024] [Indexed: 07/08/2024]
Abstract
PURPOSE To report the short-term effectiveness and safety results of a new continuous laser protocol, double-arc slow-coagulation transscleral cyclophotocoagulation (DA-TSCPC). DESIGN Multicenter retrospective study. PARTICIPANTS We reviewed the clinical records of refractory glaucoma patients that had undergone DA-TSCPC between April 2019 and July 2022, with at least 12 months of postoperative follow-up. METHODS The technique was standardized (energy: 1400 mW; duration: 4 seconds; 28 applications). The applications were divided into 2 rows (upper and lower arcs). For each arc, 7 spots were applied over the ciliary body shadow and 7 spots 1.5 mm behind, sparing the 3 and 9 o'clock meridians. MAIN OUTCOME MEASURES Success was defined as postoperative intraocular pressure (IOP) between 6 and 18 mmHg and an IOP reduction of 30% (without oral acetazolamide). For eyes with no light perception (NLP), in which treatment goal was pain relief, success was defined as a 30% IOP reduction and no pain (without oral acetazolamide). Patients were divided according to visual acuity: ≥ 20/400 (group 1) and < 20/400 (group 2). RESULTS Ninety eyes of 90 patients (mean age: 61 ± 15 years) were included. Glaucoma diagnosis frequency was: neovascular glaucoma (38%), open-angle glaucoma (28%), silicone oil secondary glaucoma (17%), and others (18%). Overall, the mean IOP was significantly reduced from 35 ± 12 to 22 ± 14 mmHg (P < 0.01) at the last follow-up visit. The number of hypotensive eye drops (2.6 ± 1-2.3 ± 1; P = 0.02) and the use of oral acetazolamide (61%-11%; P < 0.01) were also reduced. Kaplan-Meier survival analysis revealed a global success rate of 65.6% after 12 months. A higher success rate was found for group 1 (78.6%) compared to group 2 (59.6%; P = 0.047; logrank test). The main complications observed were corneal ulcer (4.4%), macular edema (1.1%), and hyphema (1.1%). Among the 26 eyes with NLP, 65% achieved success criteria at 12 months and 2 (7.7%) developed phthisis. CONCLUSIONS Based on these initial retrospective data, the DA-TSCPC protocol seems to be an alternative for refractory glaucoma management, presenting significant IOP reduction and a good safety profile after 1 year. Better outcomes were observed in eyes with less severe functional damage. FINANCIAL DISCLOSURE(S) The author(s) have no proprietary or commercial interest in any materials discussed in this article.
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Affiliation(s)
- Izabela N F Almeida
- Department of Ophthalmology, Federal University of Para, Belem, Para, Brazil
| | | | | | | | - Fábio N Kanadani
- Glaucoma Institute, Belo Horizonte, Minas Gerais, Brazil; Department of Ophthalmology and Visual Science, Federal University of Sao Paulo, Sao Paulo, Brazil; Department of Ophthalmology, Mayo Clinic, Jacksonville, Florida
| | - Tiago S Prata
- Glaucoma Institute, Belo Horizonte, Minas Gerais, Brazil; Department of Ophthalmology and Visual Science, Federal University of Sao Paulo, Sao Paulo, Brazil; Department of Ophthalmology, Mayo Clinic, Jacksonville, Florida.
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Seixas RCS, Russ HHA, Maestrini HA, Balbino M, Fernandes TAP, Lima NVDA, Lopes NLV, Neto TDSR. Slow coagulation versus micropulse transscleral cyclophotocoagulation for refractory childhood glaucoma. Eur J Ophthalmol 2024:11206721241236920. [PMID: 38425223 DOI: 10.1177/11206721241236920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
PURPOSE To compare the safety and efficacy of micropulse laser (MP-TSCP) and slow coagulation transscleral cyclophotocoagulation (TSCP) with a diode laser for reducing intraocular pressure (IOP) in patients with refractory childhood glaucoma (CG). METHODS Patients with CG and at least 12 months of medical chart data were included. Data on preoperative and postoperative outcomes were analyzed. The primary outcomes were an IOP of 6-21 mmHg and/or ≥ 20% reduction in the baseline value. RESULTS A total of 17 eyes were included. The preoperative mean IOP was 28 mmHg in the MP-TSCP and 29.9 mmHg in the TSCP. The mean IOP decreased significantly to 17.26 ± 3.27 mmHg in the MP-TSCP and 14.68 ± 5.79 mmHg TSCP at the last medical record. Three anti-glaucoma meds were administered to the eyes preoperatively in both groups. A mean of 1.02 eye drops was administered to the MP-TSCP and 2.06 to the TSCP. The number of medications decreased by 2.38 ± 1.55 in the MP-TSCP and 0.82 ± 1.68 in the TSCP. The median preoperative visual acuity (logMAR) was 1.51 ± 1.06 in the MP-TSCP and 1.87 ± 0.74 in the TSCP. The variation in mean visual acuity (logMAR) was -0.027 ± 0.05 in the MP-TSCP and -0.40 ± 0.58 in the TSCP. The most frequent complication was corneal decompensation (one - MP-TSCP and two - TSCP). CONCLUSION Both techniques were effective and relatively safe for reducing IOP. These techniques appear to extend the indications of cyclophotocoagulation in CG eyes and improve the functional prognosis.
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Chan PPM, Larson MD, Dickerson JE, Mercieca K, Koh VTC, Lim R, Leung EHY, Samuelson TW, Larsen CL, Harvey A, Töteberg-Harms M, Meier-Gibbons F, Shu-Wen Chan N, Sy JB, Mansouri K, Zhang X, Lam DSC. Minimally Invasive Glaucoma Surgery: Latest Developments and Future Challenges. Asia Pac J Ophthalmol (Phila) 2023; 12:537-564. [PMID: 38079242 DOI: 10.1097/apo.0000000000000646] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 10/12/2023] [Indexed: 12/21/2023] Open
Abstract
The development of minimally invasive glaucoma surgeries (MIGSs) was intended to provide safe and modestly efficacious modalities for early intervention of mild-to-moderate glaucoma, with minimal trauma and rapid recovery. They were mainly ab interno procedures that reduce intraocular pressure by facilitating the aqueous outflow by bypassing the trabecular meshwork resistance, reinforcing the uveoscleral flow via the supraciliary space, and reducing aqueous production by the ciliary body. While the cumulating evidence helps shape the role of the available MIGS, the exponential new development and advancement in this field has expanded the territory of MIGS. Apart from developing subconjunctival MIGS filtration devices (Xen gel stent and PRESERFLO MicroShunt), there is a tendency to revisit the "traditional" MIGS for alternative use and to modify the procedures with consideration of the fundamental aqueous outflow physiology. Combined MIGS has also been suggested, based on the theory that their different mechanisms may provide additive or synergistic effects. The advancement of laser procedures is also promising and could supplement unmet needs along the glaucoma treatment algorithm. This review examines the broad array of MIGS, updates the recent findings, discusses their potential alternative applications, and explores future challenges.
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Affiliation(s)
- Poemen P M Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Lam Kin Chung. Jet King-Shing Ho Glaucoma Treatment and Research Centre, The Chinese University of Hong Kong, Hong Kong, China
| | | | - Jaime E Dickerson
- Sight Sciences, Menlo Park, CA, USA
- University of North Texas Health Science Center, North Texas Eye Research Institute, Fort Worth, TX, USA
| | | | - Victor Teck Chang Koh
- Department of Ophthalmology, National University Health System, Singapore
- Centre for Innovation and Precision Eye Health, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ridia Lim
- Department of Ophthalmology, Sydney Eye Hospital, Sydney, Australia
- Save Sight Institute, Sydney Medical School, The University of Sydney, Sydney, Australia
| | - Enne Hiu Ying Leung
- The C-MER Dennis Lam & Partners Eye Center, C-MER International Eye Care Group, Hong Kong, China
| | - Thomas W Samuelson
- Minnesota Eye Consultants, Bloomington, MN, US
- Department of Ophthalmology, University of Minnesota, MN, US
| | - Christine L Larsen
- Minnesota Eye Consultants, Bloomington, MN, US
- Department of Ophthalmology, University of Minnesota, MN, US
| | | | - Marc Töteberg-Harms
- Department of Ophthalmology, Augusta University, Medical College of Georgia, Augusta, GA, USA
| | | | | | - Jessica Belle Sy
- Department of Ophthalmology, Sydney Eye Hospital, Sydney, Australia
- Baguio General Hospital and Medical Center, Baguil City, Benguet, Philippines
| | - Kaweh Mansouri
- Glaucoma Center, Swiss Visio, Clinique de Montchoisi, Lausanne, Switzerland
| | - Xiulan Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Dennis S C Lam
- The C-MER Dennis Lam & Partners Eye Center, C-MER International Eye Care Group, Hong Kong, China
- The International Eye Research Institute of The Chinese University of Hong Kong (Shenzhen), Shenzhen, China
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Wang J, Chun LY, Qiu M. Cyclophotocoagulation in Neovascular Glaucoma with Near-Total Synechial Angle Closure. Case Rep Ophthalmol Med 2023; 2023:5719002. [PMID: 37929013 PMCID: PMC10622186 DOI: 10.1155/2023/5719002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 09/16/2023] [Accepted: 10/07/2023] [Indexed: 11/07/2023] Open
Abstract
Objective To describe a single surgeon's experience utilizing prompt primary slow-burn transscleral cyclophotocoagulation (CPC) with prior or concurrent anti-VEGF and subsequent aqueous shunt as needed in NVG eyes with near-total synechial angle closure at presentation. Methods Retrospective chart review of all NVG patients with uncontrolled IOP, active anterior segment NV, near-total synechial angle closure, and no contraindications to prompt anti-VEGF who received CPC within 3 days of presentation with at least 6 months of follow-up. Results Eight patients with mean age 60.6 years were included. Underlying etiologies were CRVO (N = 3), PDR (N = 2), CRAO (N = 1), BRVO (N = 1), and chronic RD (N = 1). All eyes underwent CPC with intravitreal anti-VEGF within 3 days of presentation. Five patients did not require subsequent aqueous shunts through a mean follow-up of 15 months; most recent visual acuities ranged from 20/40 to LP, and IOPs ranged from 5 to 11 mmHg on 0 to 3 IOP-lowering medications. Three patients who required subsequent tubes had complete regression of active anterior segment NV at the time of surgery. Most recent visual acuities ranged from 20/100 to 20/125, and IOPs ranged from 8 to 14 mmHg on 0 meds at a mean follow-up of 10 months. No eyes developed uncontrolled inflammation, sympathetic ophthalmia, or phthisis. Conclusion Prompt primary slow-burn CPC with prior or concurrent anti-VEGF may be an effective strategy to immediately lower IOP in acute NVG eyes with active anterior segment NV and near-total synechial angle closure. If IOP becomes uncontrolled later, an aqueous shunt can be implanted in a controlled setting after active anterior segment NV has regressed.
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Affiliation(s)
- Jessie Wang
- Department of Ophthalmology & Visual Science, University of Chicago, Chicago, IL, USA
| | - Lindsay Y. Chun
- Department of Ophthalmology & Visual Science, University of Chicago, Chicago, IL, USA
| | - Mary Qiu
- Department of Ophthalmology & Visual Science, University of Chicago, Chicago, IL, USA
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Khodeiry MM, Elhusseiny AM, Liu X, Sayed MS, Lee RK. Cyclophotocoagulation as a Minimally Invasive Treatment Option for Glaucoma. Int Ophthalmol Clin 2023; 63:125-135. [PMID: 37755447 PMCID: PMC10539019 DOI: 10.1097/iio.0000000000000492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
Historically, the complications and inadequate efficacy of prior cyclodestructive procedures limited their role in glaucoma management. Recent advances in treatment techniques and parameters for laser cyclophotocoagulation has expanded its role in today's glaucoma practice. This review summarizes the role of different cyclophotocoagulation techniques, including continuous wave transscleral cyclophotocoagulation and micropulse transscleral cyclophotocoagulation, in the management of glaucomatous optic neuropathy.
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Affiliation(s)
- Mohamed M. Khodeiry
- Department of Ophthalmology and Visual Sciences, University of Kentucky College of Medicine, Lexington, Kentucky
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Abdelrahman M. Elhusseiny
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
- Harvey and Bernice Jones Eye Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Xiangxiang Liu
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | | | - Richard K. Lee
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
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Elhusseiny AM, Khodeiry MM, Liu X, Sayed MS, Lee RK. Slow-Coagulation Transscleral Cyclophotocoagulation Laser Treatment for Medically Uncontrolled Secondary Aphakic Adult Glaucoma. J Glaucoma 2023; 32:695-700. [PMID: 37172013 DOI: 10.1097/ijg.0000000000002237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 04/25/2023] [Indexed: 05/14/2023]
Abstract
PRCIS Slow-coagulation CW-TSCPC is an efficacious, relatively safe, and non-incisional laser treatment option as an initial surgical glaucoma management choice, in secondary aphakic adult glaucoma that is medically uncontrolled. PURPOSE This study evaluates the outcomes of slow-coagulation continuous wave transscleral cyclophotocoagulation (CW-TSCPC) laser for treating secondary aphakic adult glaucoma after complicated cataract surgery as a primary surgical intervention. MATERIALS AND METHODS A retrospective chart review of adult aphakic eyes with medically uncontrolled glaucoma underwent slow-coagulation CW-TSCPC as a primary surgical glaucoma intervention was performed. Surgical success was the primary outcome measure. Success was defined as postoperative intraocular pressure (IOP) between 6 and 21 mm Hg with ≥20% reduction compared with baseline and no need for further glaucoma surgeries or development of vision-threatening complications. The secondary outcomes included changes in IOP, glaucoma medication numbers, visual acuity, and postoperative complications during the first year after laser treatment after laser treatment. RESULTS This study included 41 eyes of 41 patients. The mean age of study participants was 66.7±13.1 years, with a mean follow-up duration of 19±3.5 months. At one year, the success rate was 63.4%. A statistically significant reduction of the IOP was observed, with the mean IOP decreasing from 29.6±5.8 mm Hg with a mean of 3.9±1.0 medications at baseline to a mean of 19.0±6.4 mm Hg with a mean of 2.5±1.2 medications at 12 months ( P <0.001). Four eyes received CW-TSCPC retreatment, and 2 eyes required incisional glaucoma surgeries. Reported postoperative complications included: visual acuity decline ≥2 lines in 7 eyes, iritis in 6 eyes, hyphema in 5 eyes, cystoid macular edema in 2 eyes, and transient hypotony in 1 eye. CONCLUSION Slow-coagulation CW-TSCPC is an efficacious, relatively safe, and non-incisional laser treatment option as an initial surgical glaucoma management choice, in secondary aphakic adult glaucoma that is medically uncontrolled.
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Affiliation(s)
- Abdelrahman M Elhusseiny
- Harvey and Bernice Jones Eye Institute, University of Arkansas for Medical Sciences, Little Rock, AR
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL
| | - Mohamed M Khodeiry
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL
- UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - Xiangxiang Liu
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Mohamed S Sayed
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL
- Moorfields Eye Hospital, Dubai, UAE
| | - Richard K Lee
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL
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Ren J, Gao X, Chen L, Lin H, Liu Y, Zhou Y, Liao Y, Xie C, Zuo C, Lin M. Characteristics of the Ciliary Body in Healthy Chinese Subjects Evaluated by Radial and Transverse Imaging of Ultrasound Biometric Microscopy. J Clin Med 2022; 11:jcm11133696. [PMID: 35806981 PMCID: PMC9267437 DOI: 10.3390/jcm11133696] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 12/27/2022] Open
Abstract
Background: The imaging and analysis of the ciliary body (CB) are valuable in many potential clinical applications. This study aims to demonstrate the anatomy characteristics of CB using radial and transverse imaging of ultrasound biometric microscopy (UBM) in healthy Chinese subjects, and to explore the determining factors. Methods: Fifty-four eyes of 30 healthy Chinese subjects were evaluated. Clinical data, including age, body mass index (BMI), intraocular pressure (IOP), axial length (AL), and lens thickness (LT), were collected. Radial and transverse UBM measurements of the ciliary body were performed. Anterior chamber depth (ACD), ciliary sulcus diameter (CSD), ciliary process length (CPL), ciliary process density (CPD), ciliary process area (CPA), ciliary muscle area (CMA), ciliary body area (CBA), ciliary body thickness (CBT0, CBT1, and CBTmax), anterior placement of ciliary body (APCB), and trabecular-ciliary angle (TCA) of four (superior, nasal, inferior, and temporal) quadrants were measured. Results: The average CPL was 0.513 ± 0.074 mm, and the average CPA was 0.890 ± 0.141 mm2. CPL and CPA tended to be longer and larger in the superior quadrant (p < 0.001) than in the other three quadrants. Average CPL was significantly correlated with AL (r = 0.535, p < 0.001), ACD (r = 0.511, p < 0.001), and LT (r = −0.512, p < 0.001). Intraclass correlation coefficient (ICC) scores were high for CPL (0.979), CPD (0.992), CPA (0.966), CMA (0.963), and CBA (0.951). Conclusions: In healthy Chinese subjects, CPL was greatest in the superior quadrant, followed by the inferior, temporal, and nasal quadrants, and CPA was largest in the superior quadrant, followed by the tempdoral, inferior, and nasal quadrants. Transverse UBM images can be used to measure the anatomy of the ciliary process with relatively good repeatability and reliability.
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Affiliation(s)
- Jiawei Ren
- State Key Laboratory of Ophthalmology, Guangzhou 510060, China; (J.R.); (X.G.); (L.C.); (H.L.); (Y.L.); (Y.Z.); (Y.L.); (C.X.)
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Xinbo Gao
- State Key Laboratory of Ophthalmology, Guangzhou 510060, China; (J.R.); (X.G.); (L.C.); (H.L.); (Y.L.); (Y.Z.); (Y.L.); (C.X.)
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Liming Chen
- State Key Laboratory of Ophthalmology, Guangzhou 510060, China; (J.R.); (X.G.); (L.C.); (H.L.); (Y.L.); (Y.Z.); (Y.L.); (C.X.)
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Huishan Lin
- State Key Laboratory of Ophthalmology, Guangzhou 510060, China; (J.R.); (X.G.); (L.C.); (H.L.); (Y.L.); (Y.Z.); (Y.L.); (C.X.)
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Yao Liu
- State Key Laboratory of Ophthalmology, Guangzhou 510060, China; (J.R.); (X.G.); (L.C.); (H.L.); (Y.L.); (Y.Z.); (Y.L.); (C.X.)
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Yuying Zhou
- State Key Laboratory of Ophthalmology, Guangzhou 510060, China; (J.R.); (X.G.); (L.C.); (H.L.); (Y.L.); (Y.Z.); (Y.L.); (C.X.)
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Yunru Liao
- State Key Laboratory of Ophthalmology, Guangzhou 510060, China; (J.R.); (X.G.); (L.C.); (H.L.); (Y.L.); (Y.Z.); (Y.L.); (C.X.)
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Chunzi Xie
- State Key Laboratory of Ophthalmology, Guangzhou 510060, China; (J.R.); (X.G.); (L.C.); (H.L.); (Y.L.); (Y.Z.); (Y.L.); (C.X.)
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Chengguo Zuo
- State Key Laboratory of Ophthalmology, Guangzhou 510060, China; (J.R.); (X.G.); (L.C.); (H.L.); (Y.L.); (Y.Z.); (Y.L.); (C.X.)
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
- Correspondence: (C.Z.); (M.L.)
| | - Mingkai Lin
- State Key Laboratory of Ophthalmology, Guangzhou 510060, China; (J.R.); (X.G.); (L.C.); (H.L.); (Y.L.); (Y.Z.); (Y.L.); (C.X.)
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
- Correspondence: (C.Z.); (M.L.)
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Khodeiry MM, Liu X, Lee RK. Clinical outcomes of slow-coagulation continuous-wave transscleral cyclophotocoagulation laser for treatment of glaucoma. Curr Opin Ophthalmol 2022; 33:237-242. [PMID: 35200163 PMCID: PMC9530031 DOI: 10.1097/icu.0000000000000837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW The complications and inadequate efficacy of prior cyclodestructive procedures limited their role in glaucoma management. Recent advances in treatment techniques and parameters for laser cyclophotocoagulation has expanded its role in today's glaucoma practice. In this review, we discuss the treatment outcomes of slow-coagulation continuous-wave transscleral cyclophotocoagulation (CW-TSCPC) as a glaucoma surgical procedure for multiple types of glaucoma in lowering intraocular pressure (IOP). RECENT FINDINGS Slow-coagulation TSCPC is a relatively new technique for CW-TSCPC that, unlike the 'pop' power titration technique of laser energy delivery, aims to avoid the production of the 'pop' sound that signals explosive inflammatory energy delivery to the ciliary body and nearby tissue. In slow-coagulation TSCPC, laser energy is applied in a fixed and lower amount over a longer duration, compared with the conventional pop technique. This laser energy approach leads to more stable, reliable, titratable, and selective ciliary body ablation for control of IOP, especially relative to the controversial current use of micropulse TSCPC. SUMMARY Slow-coagulation CW-TSCPC can be used safely, efficiently, reproducibly, and efficaciously in wide range of glaucoma types including those with no history of incisional surgeries, good visual acuity, and medically refractory glaucomas.
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Affiliation(s)
- Mohamed M. Khodeiry
- Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, Florida, USA
- Research Institute of Ophthalmology, Department of Ophthalmology, Giza, Egypt
| | - Xiangxiang Liu
- Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, Florida, USA
- Beijing Eye Institute, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Richard K. Lee
- Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, Florida, USA
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11
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MicroPulse Transscleral Laser Therapy Demonstrates Similar Efficacy with a Superior and More Favorable Safety Profile Compared to Continuous-Wave Transscleral Cyclophotocoagulation. J Ophthalmol 2022; 2022:8566044. [PMID: 35178250 PMCID: PMC8846995 DOI: 10.1155/2022/8566044] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 12/27/2021] [Indexed: 11/17/2022] Open
Abstract
Purpose. The aim of this study was to compare effectiveness and safety of MicroPulse transscleral laser therapy (MP-TLT) using the original MicroPulse P3® device and continuous-wave transscleral cyclophotocoagulation (CW-TSCPC) using the G-Probe® device in glaucoma. Methods. Spherical equivalent, intraocular pressure (IOP), best-corrected visual acuity (BCVA), and number of topical or oral ophthalmic pressure-reducing medications were registered at every time point, up to the last follow-up at 12 months. A complete slit-lamp examination was conducted to record the following complications: corneal edema, persistent ocular hypotony (IOP ≤5 mmHg) on two consecutive follow-up visits, choroidal detachment, phthisis bulbi, sympathetic ophthalmia, cystoid macular edema, or other abnormal ocular findings. Success was defined as IOP between 6 and 21 mmHg and >20% reduction in IOP with or without antiglaucoma medications. Results. 47 eyes underwent MP-TLT and 150 CW-TSCPC. At 12 months, success was achieved in 88.6% in the CW-TSCPC group and 87.5% in the MP-TLT group (
= 0.883). In the CW-TSCPC group, eyes achieved a 42.4% IOP reduction (from 28.3 ± 12.3 mmHg to 15.3 ± 6.0 mmHg) and a 31.1% reduction (from 22.0 ± 7.2 mmHg to 15.7 ± 4.8 mmHg) in the MP-TLT group. Visual acuity remained primarily unaltered in both groups. Conclusion. MP-TLT was as effective in lowering IOP as CW-TSCPC and achieved comparable success. Additionally, MP-TLT demonstrated consistent and effective outcomes at every time point. The improved safety profile of MP-TLT allows the therapeutic spectrum to be broadened, granting ophthalmologists’ treatment of glaucoma in earlier stages of glaucoma than those typically treated with CW-TSCPC, i.e., early to moderate and to patients with good central-vision.
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Khodeiry MM, Lauter AJ, Sayed MS, Han Y, Lee RK. Primary slow-coagulation transscleral cyclophotocoagulation laser treatment for medically recalcitrant neovascular glaucoma. Br J Ophthalmol 2021; 107:671-676. [PMID: 34848391 DOI: 10.1136/bjophthalmol-2021-319757] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 11/12/2021] [Indexed: 11/04/2022]
Abstract
AIMS To report treatment outcomes of slow-coagulation continuous-wave transscleral cyclophotocoagulation (TSCPC) as an initial surgical intervention in patients with neovascular glaucoma (NVG). METHODS A retrospective study including 53 patients (mean age of 69.6±16.6 years and mean follow-up of 12.7±8.9 months) with a diagnosis of NVG and no previous incisional glaucoma or cyclophotocoagulation surgeries. All patients underwent slow-coagulation continuous-wave TSCPC (1250-milliwatt power and 4-second duration).Primary outcome measure was surgical success defined as an intraocular pressure (IOP) from 6 to 21 mm Hg with a reduction ≥20% from baseline, no reoperation for glaucoma and no loss of light perception vision. Secondary outcome measures include IOP, glaucoma medications, visual acuity (VA) and complications. RESULTS IOP decreased from 40.7±8.6 mm Hg preoperatively to 18.4±12.2 mm Hg postoperatively (p<0.001). The preoperative number of glaucoma medications dropped from 3.3±1.1 at baseline to 2.0±1.5 at the last postoperative visit (p<0.001). The cumulative probabilities of success at 12 and 24 months were 71.7% and 64.2 %, respectively. Mean logarithm of the minimum angle of resolution VA was relatively unchanged from 2.27±0.63 to 2.25±0.66 at the last follow-up visit (p=0.618). The most common observed complications were decrease in baseline VA (13.2%) and anterior chamber inflammation (9.4%). CONCLUSIONS Slow-coagulation TSCPC is an effective and relatively safe initial surgical intervention in medically uncontrolled NVG.
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Affiliation(s)
- Mohamed M Khodeiry
- Department of Ophthalmology, University of Miami Health System Bascom Palmer Eye Institute, Miami, Florida, USA.,Department of Ophthalmology, Research Institute of Ophthalmology, Giza, Egypt
| | - Alison J Lauter
- Department of Ophthalmology, University of Miami Health System Bascom Palmer Eye Institute, Miami, Florida, USA
| | - Mohamed S Sayed
- Department of Ophthalmology, University of Miami Health System Bascom Palmer Eye Institute, Miami, Florida, USA
| | - Ying Han
- Deparmtent of Ophthalmology, University of California San Francisco, San Francisco, California, USA
| | - Richard K Lee
- Department of Ophthalmology, University of Miami Health System Bascom Palmer Eye Institute, Miami, Florida, USA
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13
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Khodeiry MM, Liu X, Sheheitli H, Sayed MS, Lee RK. Slow Coagulation Transscleral Cyclophotocoagulation for Postvitrectomy Patients With Silicone Oil-induced Glaucoma. J Glaucoma 2021; 30:789-794. [PMID: 34049347 PMCID: PMC8404953 DOI: 10.1097/ijg.0000000000001893] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 05/10/2021] [Indexed: 11/25/2022]
Abstract
PRECIS Slow coagulation transscleral cyclophotocoagulation (TSCPC) is an effective and safe glaucoma surgery in patients with medically uncontrolled silicone oil (SO)-induced glaucoma. PURPOSE The purpose of this study was to report the outcomes of slow coagulation continuous wave TSCPC in patients with medically uncontrolled secondary glaucoma following pars plana vitrectomy (PPV) and intravitreal SO injection. PATIENTS AND METHODS This retrospective study enrolled patients with medically uncontrolled glaucoma secondary to PPV with SO injection who underwent TSCPC using slow coagulation TSCPC settings (power of 1250 mW and duration of 4 s). The primary outcome measure was surgical success at 12 months. Surgical success was defined as an intraocular pressure 6 to 21 mm Hg and reduced ≥20% from baseline, no reoperation for glaucoma, and no loss of light perception vision. Secondary outcome measures included number of glaucoma medications, visual acuity changes, and surgical complications. RESULTS A total of 18 eyes of 18 patients were included in the study. The mean age and follow-up of the patients were 51.94±14.5 years and 16.3±3.5 months, respectively. The mean intraocular pressure decreased from 29.7±9.6 mm Hg preoperatively to 14.6±6.5 mm Hg at 12 months postoperatively (P<0.001). Glaucoma medications were reduced from 4.2±0.9 at baseline to 1.9±1.3 at 12 months after TSCPC (P<0.001). A nonsignificant change of logarithm of the minimum angle of resolution visual acuity was observed at 12 months (P=0.722). The success rate at 12 months was 72.2%. No major complications were reported during the first year of follow-up. CONCLUSION Slow coagulation TSCPC had high efficacy and minimal complications when used as an initial glaucoma surgical procedure in patients with SO-induced glaucoma.
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Affiliation(s)
- Mohamed M. Khodeiry
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL
- Department of Ophthalmology, Research Institute of Ophthalmology, Giza, Egypt
| | - Xiangxiang Liu
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL
- Beijing Eye Institute, Beijing Tongren Eye Center, Beijing Tongren Eye Hospital, Capital Medical University, Beijing, China
| | - Huda Sheheitli
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL
| | - Mohamed S. Sayed
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL
| | - Richard K. Lee
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL
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