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Derek Kwun-Hong Ho, Adesuwa Garrick, Seemeen Aazem, Divya Mathews
BACKGROUND: The objective of this study was to evaluate the efficacy of Viscocanalostomy/Phacoviscocanalostomy (VC/PVC) in lowering intraocular pressure (IOP) in Normal Tension Glaucoma (NTG) patients. METHODS: Retrospective electronic database review of patients who underwent VC/PVC for NTG between December 2009 and November 2011 at Stanley eye unit in Abergele Hospital. Goldmann applanation tonometry (GAT) was used for all IOP measurements which were taken at the time of listing for surgery and at 1 day, 1 week, 1 month, then 3-monthly up to 1 year, then half-yearly up to 3 years post operatively...
November 6, 2017: BMC Ophthalmology
Chao-Xu Qian, Yuan Zong, Qin Chen, Zhi-Lan Yuan
AIM: To evaluate the long-term outcome of viscocanalostomy combined with trabeculotomy and mitomycin C in the treatment of primary congenital glaucoma. METHODS: This is a retrospective study. Forty-two eyes of 26 patients with primary congenital glaucoma were enrolled. Intraocular pressure (IOP), corneal diameter (mm) and cup/disc (C/D) were measured before and after the surgery respectively. Follow-up period was 30mo. RESULTS: The mean preoperative IOP was 30...
2017: International Journal of Ophthalmology
Ahmed Al Habash, Omar Al Abdulsalam, Awad Al-Qarni
Intracorneal hematoma or hemorrhagic descemet detachment is a rare phenomenon. It has been previously described after nonpenetrating glaucoma surgeries such as canaloplasty, viscocanalostomy, and deep sclerectomy. In this report, we describe a rare case of intracorneal hematoma as a yet nondocumented complication after Ahmed glaucoma valve implant surgery.
September 2017: Journal of Glaucoma
Matthias C Grieshaber
Ab externo Schlemm's canal (SC) surgery (e.g., viscocanalostomy and canaloplasty) is a valuable alternative to glaucoma filtration surgery. It targets the abnormally high resistance to outflow in the trabecular meshwork (TM) and reestablishes the physiologic outflow system. In viscocanalostomy, viscoelastic substance is injected to dilate SC, which in turn leads to microdisruptions of the inner wall. In canaloplasty, the additional intracanalicular stent (suture or Stegmann Canal Expander®) keeps the canal patent and enhances the circumferential flow...
2017: Developments in Ophthalmology
Faried Mohammed Wagdy
INTRODUCTION: The purpose of this study was to compare the efficacy and safety of canaloplasty versus viscocanalostomy in management of uncontrolled primary open angle glaucoma (POAG) with medication. METHODS: Canaloplasty surgery was applied for thirty eyes of thirty patients (45-55 years) with a mean age of 48 years (Group A) and viscocanalostomy surgery was applied also for thirty eyes of thirty patients (43-54 years) with a mean age of 46 years (group B). All patients were with uncontrolled primary open angle glaucoma by maximally tolerated medical therapy...
January 2017: Electronic Physician
Huri Sabur, Mehmet Baykara, Basak Can
PURPOSE: To compare the results of conventional 1064 nm neodymium-doped yttrium-aluminum garnet laser goniopuncture (Nd:YAG-GP) and selective 532 nm Nd:YAG laser (selective laser trabeculoplasty [SLT])  gonioreconditioning (GR) on trabeculo-Descemet's membrane in eyes resistant to viscocanalostomy surgery. METHODS: Thirty-eight eyes of 35 patients who underwent laser procedure after successful viscocanalostomy surgery were included in the study. When postoperative intraocular pressure (IOP) was above the individual target, the eyes were scheduled for laser procedure...
August 2016: Indian Journal of Ophthalmology
Kenneth J Taubenslag, Jeffrey A Kammer
African descent is a well-documented risk factor for glaucoma development, progression, and medical and surgical failure. We reviewed the literature for evidence of outcomes disparities between Black and White populations after trabeculectomy, Ex-PRESS shunt, viscocanalostomy, canaloplasy, tube shunt, laser trabeculoplasty, and cyclophotocoagulation. There are reports of decreased surgical success in Black patients after trabeculectomy, Ex-PRESS shunt, tube-shunt, and canaloplasty. At this time, there is no strong evidence that any procedure is more effective for intraocular pressure control than standard trabeculectomy for Black patients...
2016: Seminars in Ophthalmology
Matthias C Grieshaber, Hans R Grieshaber, Robert Stegmann
PURPOSE: To evaluate a new canal expander in circumferential viscocanalostomy (canaloplasty) for whites with primary open-angle glaucoma (POAG). DESIGN: Prospective, single-center, noncomparative study. PARTICIPANTS: Twenty-two eyes of 22 consecutive patients with medically uncontrolled POAG underwent primary viscocanalostomy and implantation of the Stegmann Canal Expander into Schlemm canal with a follow-up time of at least 1 year. MATERIALS AND METHODS: Schlemm canal was unroofed ab externo, and dilated with viscoelastic material and microcatheter...
August 2016: Journal of Glaucoma
Yar-Li Tan, Jocelyn Chua, Ching-Lin Ho
Childhood glaucoma is known to be one of the most challenging conditions to manage. Surgical management is more complicated than in adults because of differences in anatomy from adults along with variations in anatomy caused by congenital and developmental anomalies, wide-ranging pathogenetic mechanisms, a more aggressive healing response, and a less predictable postoperative course. Challenges in postoperative examination and management in less cooperative children and the longer life expectancies preempting the need for future surgeries and reinterventions are also contributing factors...
January 2016: Asia-Pacific Journal of Ophthalmology
S Kazerounian, A Rickmann, K Helaiwa, M Waizel
We describe the case of an 18-year-old female patient who presented with vasodilation of the episcleral vessels in both eyes. The dilated vessels were more prominent in the right eye and, furthermore, examination of the fundus oculi showed a glaucomatous excavation of the right optic disc. No underlying eye or systemic disease was found as the cause for the vasodilation, therefore, Radius-Maumenee syndrome (idiopathic dilated episcleral vessels with secondary open angle glaucoma) was diagnosed. Radius-Maumenee syndrome is a diagnosis by exclusion...
September 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
Uzeyir Gunenc, Taylan Ozturk, Gul Arikan, Nilufer Kocak
AIM: To evaluate the long-term efficacy and safety results of viscocanalostomy and phacoviscocanalostomy. METHODS: The charts of 49 glaucoma patients who underwent viscocanalostomy or phacoviscocanalostomy surgery between February 1999 and August 2004 were reviewed retrospectively. Thirty-one eyes of 21 glaucoma patients who underwent filtering procedure with a postoperative follow-up of at least 5y were included in the study. Results of complete ophthalmologic examinations were recorded and statistically analyzed...
2015: International Journal of Ophthalmology
Divya Mathews, Amy-Lee Shirodkar, Dana Ahnood, Adesuwa Garrick
PURPOSE: The aim of this study is to evaluate the safety and efficacy of laser goniopuncture (LGP) to lower intraocular pressure (IOP) post-viscocanalostomy (VC)/phacoviscocanalostomy (PVC). Outcomes include: IOP reduction from pre-LGP levels and the need for further topical antiglaucomatous medication or surgery. PATIENTS AND METHODS: A total of 541 eyes that underwent VC/PVC between 2009 and 2012, at the Stanley eye unit in Abergele were included in the study...
June 2016: Journal of Glaucoma
Gábor Holló, Andreas Katsanos, Anastasios Gp Konstas
Exfoliative glaucoma is the most common type of secondary open-angle glaucoma worldwide. It is characterized by high intraocular pressure (IOP) and worse 24-hour IOP characteristics. In order to minimize progression, treatment of exfoliative glaucoma has to provide a low long-term mean IOP and good 24-hour IOP control. To achieve these goals, fixed-dose combination eye drops, argon and selective laser trabeculoplasty, and various forms of surgery (trabeculectomy, deep sclerectomy, viscocanalostomy, ab interno trabeculotomy, trabecular aspiration, and cataract surgery) all need to be considered during the long-term management of the disease...
2015: Clinical Ophthalmology
Deepta Ghate, Xue Wang
BACKGROUND: Primary congenital glaucoma (PCG) manifests within the first few years of a child's life and is not associated with any other systemic or ocular abnormalities. PCG results in considerable morbidity even in developed countries. Several surgical techniques for treating this condition, and lowering the intraocular pressure (IOP) associated with it, have been described. OBJECTIVES: To compare the effectiveness and safety of different surgical techniques for PCG...
January 30, 2015: Cochrane Database of Systematic Reviews
Matthias C Grieshaber, Clive Peckar, Ané Pienaar, Norbert Koerber, Robert Stegmann
PURPOSE: To study the safety and long-term efficacy of classic viscocanalostomy in patients with open-angle glaucoma (OAG) in different populations. METHODS: A total of 726 eyes of 726 patients from Europe or South Africa with primary OAG (POAG) and pseudoexfoliative glaucoma (PXFG) were included in this retrospective multicentre study. Complete (qualified) success was defined as an intraocular pressure (IOP) equal to or lower than 21, 18 and 16 mmHg without (with or without) medications, respectively...
June 2015: Acta Ophthalmologica
Mohamed A Eldaly, Catey Bunce, Ola Z Elsheikha, Richard Wormald
BACKGROUND: Glaucoma is the second commonest cause of blindness worldwide. Non-penetrating glaucoma surgeries have been developed as a safer and more acceptable surgical intervention to patients compared to conventional procedures. OBJECTIVES: To compare the effectiveness of non-penetrating trabecular surgery compared with conventional trabeculectomy in people with glaucoma. SEARCH METHODS: We searched CENTRAL (which contains the Cochrane Eyes and Vision Group Trials Register) (The Cochrane Library 2013, Issue 8), Ovid MEDLINE, Ovid MEDLINE In-Process and Other Non-Indexed Citations, Ovid MEDLINE Daily, Ovid OLDMEDLINE (January 1946 to September 2013), EMBASE (January 1980 to September 2013), Latin American and Caribbean Literature on Health Sciences (LILACS) (January 1982 to September 2013), the metaRegister of Controlled Trials (mRCT) (www...
2014: Cochrane Database of Systematic Reviews
B Wojdat, N Körber, R Krott
BACKGROUND: Beside the established methods in glaucoma surgery, several procedures have been developed in the recent past including viscocanalostomy as a non-penetrating surgery. The efficiency of a combination of this procedure with an intrascleral implant and/or with cataract surgery was examined in this retrospective study over a period to 60 months postoperatively. PATIENTS AND METHODS: 67 eyes from 49 patients with glaucoma were operated in two different operational groups...
January 2014: Klinische Monatsblätter Für Augenheilkunde
Yuan Zong, Zhi-lan Yuan
Viscocanalostomy is used as the surgical intervention for open angle glaucoma. It has advantage of creating gradual filtration through the thin trabeculo-descemet membrane to reduce markedly the postoperative complications. Lately, many surgeons modified VCO, like combined it with phacoemulsification, or use the implant. Many to lower IOP to a greater degree and enhance success rates. This article reviewed the history of VCO, specially on the point of the surgical methods, effect, development, progress and tendency of VCO...
August 2013: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
Eliana Rulli, Elena Biagioli, Ivano Riva, Giovanni Gambirasio, Irene De Simone, Irene Floriani, Luciano Quaranta
IMPORTANCE: To date, only a few studies have directly compared nonpenetrating surgery (NPS) and trabeculectomy (TE). Therefore, there is no strong evidence as to which surgical technique leads to the best results in terms of ocular hypotensive effect and safety. OBJECTIVE: To compare the hypotensive effect and safety of NPS and TE in terms of intraocular pressure (IOP) reduction and incidence of complications. DATA SOURCES: The MEDLINE and EMBASE databases were searched for studies potentially eligible in any language published up to March 31, 2013...
December 2013: JAMA Ophthalmology
Paolo Bettin, Federico Di Matteo
The authors indicate four key issues which, in their opinion, represent the most stimulating challenges in the field of glaucoma today, and describe the present approaches and the developments that can be expected or advised in the near future: (1) Glaucoma is often undiagnosed or diagnosed too late. Accurate detection is crucial to correctly recognize and treat affected subjects, thus reducing the disability and the social burden of the disease. Is glaucoma screening advisable and cost-effective? What strategies can be implemented to achieve an earlier diagnosis? (2) What role can genetics play in glaucoma clinics? (3) What are the fundamentals and the limits of medical hypotensive and nonhypotensive treatment of glaucoma today, and what novelties could be introduced in the next few years? (4) What are the current and future options for glaucoma surgery? Should we aim at reducing aqueous production or at enhancing aqueous outflow? What are the success figures and the pros and cons of ab externo procedures with external filtration (trabeculectomy, nonpenetrating techniques and glaucoma drainage devices) and of ab externo techniques with internal filtration (viscocanalostomy and canaloplasty)? Will microinvasive procedures ever play a role in the treatment of the disease? These questions and the possible future developments in the management of glaucoma are discussed critically, based on the current clinical state of the art, on a review of the literature, and on an everyday experience in a busy university hospital glaucoma service...
2013: Ophthalmic Research
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