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Laser peripheral iridotomy

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https://www.readbyqxmd.com/read/29303875/outcome-following-laser-peripheral-iridotomy-and-predictors-of-future-lens-extraction
#1
Jenny Bo, Tulsi Changulani, Mei-Ling Cheng, Andrew J Tatham
PURPOSE: To examine the outcome of laser peripheral iridotomy (LPI) for primary angle closure (PAC) and determine predictors of future lens extraction (LE). METHODS: A retrospective chart review of 218 eyes from 128 consecutive patients undergoing LPI between 2010 and 2012 at a university hospital. Baseline factors including age, peak intraocular pressure (IOP) prior to LPI, diagnosis (primary angle closure suspect (PACS), PAC, primary angle closure glaucoma (PACG), and acute or non-acute presentation were recorded...
January 4, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29240597/trabeculectomy-with-mitomycin-c-outcomes-and-risk-factors-for-failure-in-primary-angle-closure-glaucoma
#2
Pablo Romero, Pradtana Hirunpatravong, Reza Alizadeh, Eun-Ah Kim, Kouros Nouri-Mahdavi, Esteban Morales, Simon K Law, Joseph Caprioli
PURPOSE: There are no reported large series of trabeculectomy with mitomycin-C (MMC) in Western patients with primary angle-closure glaucoma (PACG). Our study evaluates long-term tonometric outcomes of trabeculectomy in PACG. METHODS: This is a retrospective cohort study. The primary outcomes were the Kaplan-Meier success rates on survival analyses using three criteria, with or without adjunctive medication: (A) intraocular pressure (IOP) ≤18▒mmHg and IOP reduction of 20%; (B) IOP≤15▒mmHg and IOP reduction 25%; and (C) IOP≤12▒mmHg and IOP reduction 30%...
December 13, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/29218423/early-intraocular-pressure-change-after-peripheral-iridotomy-with-ultralow-fluence-pattern-scanning-laser-and-nd-yag-laser-in-primary-angle-closure-suspect-kowloon-east%C3%A2-pattern-scanning-laser-study-report-no-3
#3
Jeffrey Chi Wang Chan, Bonnie Nga Kwan Choy, Orlando Chia Chieh Chan, Kenneth Kai Wang Li
PURPOSE: Our purpose was to assess the early intraocular pressure (IOP) changes of ultralow fluence laser iridotomy using pattern scanning laser followed by neodymium:yttrium-aluminum-gamet (Nd:YAG) laser. METHODS: This is a prospective interventional study. Thirty-three eyes of 33 adult Chinese primary angle-closure suspect subjects were recruited for prophylactic laser peripheral iridotomy. Sequential laser peripheral iridotomy was performed using pattern scanning laser followed by Nd:YAG laser...
December 7, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29194069/changing-patterns-in-treatment-of-angle-closure-glaucoma
#4
Maria L Napier, Augusto Azuara-Blanco
PURPOSE OF REVIEW: Angle closure glaucoma is a leading cause of blindness globally and trends of how best to treat this disease are evolving. The advent of anterior segment imaging aids our understanding of pathogenesis and allows more robust and objective measurement of treatment modalities. We will also review recent literature regarding the role of laser and surgical interventions for the treatment of primary angle closure disease. RECENT FINDINGS: Recent studies evaluating the efficacy of laser peripheral iridotomy (LPI) in primary angle closure suspects (PACs) show that while it is a safe intervention and initially anterior chamber angle widens following the laser treatment, the effect is lost with time...
November 30, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/29191661/anterior-segment-dimensions-following-laser-iridotomy-in-acute-primary-angle-closure-and-fellow-eyes
#5
Sasan Moghimi, Faezeh Bijani, Rebecca Chen, Mehdi Yasseri, Mingguang He, Shan C Lin, Robert N Weinreb
PURPOSE: To compare the change in anterior segment morphology after laser peripheral iridotomy (LPI)in acute primary angle closure(APAC) and their fellow eyes Design: Prospective, fellow-eye matched case series METHOD: In this study 42 individuals with unilateral episode of APAC were enrolled and the anterior segment optical coherence tomography (ASOCT) images were obtained in both eyes at baseline and at six weeks after LPI. A linear mixed effects model was used to compare changes in anterior chamber and angle variables with consideration of laterality as the random effect and pupil diameter as the fixed effect...
November 27, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29189543/acute-angle-closure-glaucoma-associated-with-aripiprazole-in-the-setting-of-plateau-iris-configuration
#6
Elizabeth Shen, Sarah Farukhi, Mason Schmutz, Sameh Mosaed
PURPOSE OF THE STUDY: To report a novel case of drug-induced angle-closure from aripiprazole (Abilify), an atypical antipsychotic, and propose a mechanism for this association. METHODS/RESULTS: We report a case of a 45 year-old Caucasian woman who presented in subacute angle closure two months after initiating aripiprazole 5 mg daily for depression. This patient reported no prior ocular history and had been on longstanding duloxetine (Cymbalta) 60 mg daily for over ten years prior to starting aripiprazole...
November 17, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/29176335/acute-angle-closure-glaucoma-as-a-first-presentation-of-coats-disease-a-case-report
#7
Mazen Amro, Ali A Haydar, Sylvain El-Khoury, Karim F Tomey, George Cherfan, Ziad Khoueir
PURPOSE: To report an unusual first manifestation of Coats' disease presenting as an acute angle closure glaucoma attack in an adult patient. PATIENTS AND METHODS: A 37-year-old African woman presented to the emergency department with severe headache, ocular pain, and no light perception (NLP) in the left eye. The left pupil was mid-dilated and nonreactive, and the intraocular pressure by applanation tonometry was 47▒mm Hg. Slit-lamp examination revealed anterior subcapsular opacification (glaukomflecken), posterior synechiae, and total angle closure with iris-bombé...
November 23, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/29151687/medium-term-anatomical-results-of-laser-peripheral-iridoplasty-an-anterior-segment-optical-coherence-tomography-study
#8
Joobin Hooshmand, James Cy Leong, Jeremy O'Connor, Ghee S Ang, Anthony P Wells
Aim: To evaluate by anterior segment optical coherence tomography (AS-OCT) the medium-term (mean duration 3.2 years) anatomical changes in the anterior chamber angle (ACA) after laser peripheral iridoplasty. Materials and methods: This is a longitudinal, retrospective case series of 31 eyes of 31 patients with primary angle-closure suspicion, primary angle closure (PAC), or primary angle-closure glaucoma (PACG) who underwent laser peripheral iridoplasty. All patients had persistent iridotrabecular contact (ITC) despite the presence of a patent peripheral iridotomy (PI)...
September 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/29151682/anterior-segment-morphology-in-primary-angle-closure-glaucoma-using-ultrasound-biomicroscopy
#9
Tarannum Mansoori, Nagalla Balakrishna
Aim: To evaluate the configuration of the anterior chamber angle quantitatively and study the morphological changes in the eye with ultrasound biomicroscopy (UBM) in primary angle closure glaucoma (PACG) patients after laser peripheral iridotomy (LPI). Materials and methods: A total of 185 eyes of 185 PACG patients post-LPI and 126 eyes of 126 normal subjects were included in this prospective study. All subjects underwent complete ophthalmic evaluation, A-scan biometry, and UBM...
September 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/29130529/anterior-segment-morphology-after-laser-iridotomy-in-primary-angle-closure-suspects
#10
Tarannum Mansoori, Nagalla Balakrishna
PURPOSE: To evaluate and compare the changes in anterior segment parameters in primary angle closure suspects before and after laser peripheral iridotomy and intrasession repeatability of measurements before laser iridotomy as assessed by Scheimpflug-Placido disc topographer. METHODS: Before laser iridotomy, 56 eyes of 56 primary angle closure suspect patients underwent anterior segment analysis with the Sirius Scheimpflug-Placido disc topographer system using glaucoma analysis mode, which was repeated a week after iridotomy...
November 12, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29119030/latanoprost-induced-iris-pigment-epithelial-and-ciliary-body-cyst-formation-in-hypermetropic-eyes
#11
Abhijit Anand Mohite, Rangarajan V Prabhu, Thomas Ressiniotis
Purpose: Latanoprost has become one of the most widely prescribed topical antihypertensive medications in recent years. Yet there have been few reports of secondary iris pigment epithelial (IPE) and ciliary body (CB) cyst formation to date and none, to our knowledge, reported in eyes predisposed to primary angle closure. Methods: We report the first documented case of bilateral IPE and CB cysts in a hypermetropic patient with prior laser peripheral iridotomies (LPIs) as a rare, delayed side effect of topical Latanoprost treatment...
2017: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/29096997/comparison-of-new-visual-disturbances-after-superior-versus-nasal-temporal-laser-peripheral-iridotomy-a-prospective-randomized-trial
#12
Kavitha Srinivasan, Nazlee Zebardast, Palaniswamy Krishnamurthy, Mohideen Abdul Kader, Ganesh V Raman, Sharmila Rajendrababu, Rengaraj Venkatesh, Pradeep Y Ramulu
PURPOSE: To determine whether laser peripheral iridotomy (LPI) location affects postoperative dysphotopsia symptoms. DESIGN: Multicenter, randomized, prospective, single-masked trial. PARTICIPANTS: Five hundred fifty-nine South Indian patients 30 years of age or older diagnosed as primary angle-closure suspects (PACSs) or with primary angle closure (PAC) or primary angle-closure glaucoma (PACG) in both eyes. METHODS: Patients were randomized to either bilateral superior or bilateral nasal/temporal LPI...
October 30, 2017: Ophthalmology
https://www.readbyqxmd.com/read/29082039/laser-peripheral-iridotomy-versus-trabeculectomy-as-an-initial-treatment-for-primary-angle-closure-glaucoma
#13
Yan Yun Chen, Su Jie Fan, Yuan Bo Liang, Shi Song Rong, Hai Lin Meng, Xing Wang, Ravi Thomas, Ning Li Wang
PURPOSE: To compare laser peripheral iridotomy (LPI) with trabeculectomy as an initial treatment for primary angle-closure glaucoma (PACG) with peripheral anterior synechiae (PAS) ≥ 6 clock hours. METHODS: Patients were drawn from two randomized controlled trials. 38 eyes of 38 patients (PAS ≥ 6 clock hours) were treated with LPI (group 1) while 111 eyes of 111 PACG patients (PAS ≥ 6 clock hours) underwent primary trabeculectomy (group 2). All patients underwent a comprehensive ophthalmic examination at baseline and at postoperative visits and were followed up for a minimum of one year...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29081648/resident-performed-laser-peripheral-iridotomy-in-primary-angle-closure-primary-angle-closure-suspects-and-primary-angle-closure-glaucoma
#14
Jason P Kam, Emily M Zepeda, Leona Ding, Joanne C Wen
PURPOSE: To investigate the power use and complication frequency of resident-performed laser peripheral iridotomy (LPI). METHODS: A retrospective analysis of 196 eyes from 103 patients who underwent neodymium: yttrium-aluminum-garnet laser iridotomy performed by resident physicians from January 1, 2010 through April 30, 2015 at a university-based county hospital was done. All patients were treated for primary angle closure, primary angle closure suspects, and primary angle closure glaucoma...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29077625/chronic-and-intermittent-angle-closure-caused-by-in-the-bag-capsular-tension-ring-and-intraocular-lens-dislocation-in-patients-with-pseudoexfoliation-syndrome
#15
Frank Bochmann, Jörg Strümer
PURPOSE: A subluxation or dislocation of the intraocular lens (IOL) is a well-known complication after cataract surgery in patients with pseudoexfoliation syndrome (PEX). Capsular tension rings (CTR) are frequently used to prevent postoperative complications caused by zonular weakness. Here we present a series of 7 cases, 2 with intermittent and 5 with acute angle closure caused by a combination of PEX-associated zonular weakness and a resulting unstable capsular bag-CTR-IOL complex. MATERIALS AND METHODS: We describe the typical clinical course with elevated intraocular pressure, myopic shift, and shallowing of the anterior chamber in 7 patients with a new type of secondary angle closure...
November 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/29050926/-role-of-laser-peripheral-iridotomy-in-pigmentary-glaucoma-and-pigment-dispersion-syndrome-a-review-of-the-literature-french-version
#16
REVIEW
J Buffault, B Leray, A Bouillot, C Baudouin, A Labbé
PURPOSE: Pigment dispersion syndrome (PSD) is characterized by a structural abnormality of the posterior surface of the iris causing contact with the zonular fibers. It can lead to an open-angle glaucoma secondary to pigment dispersion into the trabecular meshwork. Laser peripheral iridotomy (PI) has been proposed as a treatment for pigmentary glaucoma (PG) and pigment dispersion syndrome (PDS) by reducing the dispersion of pigment. The goal of this review was to assess the effects of PI for PSD and PG...
October 16, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29035183/atypical-presentation-of-acute-angle-closure-glaucoma-in-maroteaux-lamy-mucopolysaccharidosis-with-patent-prophylactic-laser-peripheral-iridotomy-a-case-report
#17
Malini Veerappan, Garrick Chak, Christine Shieh, Pratap Challa
INTRODUCTION: Maroteaux-Lamy syndrome (MLS) is a rare progressive condition characterized by inflammation and scarring of multiple organs. Ocular complications caused by anterior segment abnormalities commonly cause visual impairment in MLS. Angle-closure glaucoma is one such complication, but there are limited data on presentation, workup, and management of this condition. CASE PRESENTATION: This case report describes an atypical presentation of acute angle-closure glaucoma in a patient with MLS despite a prior prophylactic laser peripheral iridotomy-which would typically prevent an acute angle-closure attack-that was patent and intact at the time of angle closure...
2017: Permanente Journal
https://www.readbyqxmd.com/read/29030369/post-laser-assisted-in-situ-keratomileusis-keratomycotic-malignant-glaucoma
#18
Pranita Sahay, Prafulla Kumar Maharana, Namrata Sharma, Jeewan S Titiyal
We report a case of a 24-year-old male patient with post-laser assisted in situ keratomileusis (LASIK) culture-proven mycotic keratitis who developed pupillary block glaucoma on day 19 of medical management. The case was initially managed with multiple Nd-Yag peripheral iridotomy along with systemic and topical antiglaucoma medications. However, an emergency therapeutic penetrating keratoplasty (TPK) with lens extraction was done in view of persistently raised intraocular pressure (IOP) and seclusio pupillae...
October 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28987446/role-of-laser-peripheral-iridotomy-in-pigmentary-glaucoma-and-pigment-dispersion-syndrome-a-review-of-the-literature
#19
REVIEW
A Labbé, J Buffault, B Leray, A Bouillot, C Baudouin
PURPOSE: Pigment dispersion syndrome (PDS) is characterized by a structural abnormality of the posterior surface of the iris causing contact with the zonular fibers. It can lead to an open-angle glaucoma secondary to pigment dispersion into the trabecular meshwork. Laser peripheral iridotomy (PI) has been proposed as a treatment for pigmentary glaucoma (PG) and pigment dispersion syndrome (PDS) by reducing the dispersion of pigment. The goal of this review was to assess the effects of PI for PDS and PG...
November 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28986594/plateau-iris-distribution-across-anterior-segment-optical-coherence-tomography-defined-subgroups-of-subjects-with-primary-angle-closure-glaucoma
#20
Sushma Verma, Monisha E Nongpiur, Hnin H Oo, Eray Atalay, David Goh, Tina T Wong, Shamira A Perera, Tin Aung
Purpose: We previously identified three distinct subgroups of patients with primary angle closure glaucoma (PACG) based on anterior segment optical coherence tomography (ASOCT) imaging. Group 1 was characterized by a large iris area with deepest anterior chambers, group 2 by a large lens vault (LV) and shallow anterior chamber depth (ACD), and group 3 displayed intermediate values across iris area, LV, and ACD. The purpose of the present study was to determine the distribution of plateau iris in these subgroups using ultrasound biomicroscopy (UBM) features...
October 1, 2017: Investigative Ophthalmology & Visual Science
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