176 results match your criteria Glaucoma Plateau Iris


Bilateral angle-closure during hospitalization for coronavirus disease-19 (COVID-19): A case report.

Eur J Ophthalmol 2021 Apr 22:11206721211012197. Epub 2021 Apr 22.

Department of Neurosciences, Biomedicine and Movement Sciences, Eye Clinic, University of Verona, Verona, Italy.

Purpose: This report describes a case of bilateral primary angle closure (PAC) progressing to unilateral end-stage primary angle closure glaucoma (PACG) associated with treatment for coronavirus disease-19 (COVID-19) infection.

Methods: A 64-year-old man came to our attention because of blurred vision after a 2-month hospital stay for treatment of COVID-19 infection. Examination findings revealed PACG, with severe visual impairment in the right eye and PAC in the left eye due to plateau iris syndrome. Read More

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Deep Learning for Anterior Segment Optical Coherence Tomography to Predict the Presence of Plateau Iris.

Transl Vis Sci Technol 2021 Jan 6;10(1). Epub 2021 Jan 6.

Department of Ophthalmology, Rajavithi Hospital, Bangkok, Thailand.

Purpose: The purpose of this study was to evaluate the diagnostic performance of deep learning (DL) anterior segment optical coherence tomography (AS-OCT) as a plateau iris prediction model.

Design: We used a cross-sectional study of the development and validation of the DL system.

Methods: We conducted a collaboration between a referral eye center and an informative technology department. Read More

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January 2021

Comparing the Effect of Lens Extraction With Endocycloplasty to Lens Extraction Alone in Eyes With Plateau Iris Configuration: Pilot Study.

J Glaucoma 2021 05;30(5):436-443

Ruiz Department of Ophthalmology and Visual Science, McGovern Medical School at The University of Texas Health Science Center at Houston.

Precis: Lens extraction with endocycloplasty (LE/ECPL) results in greater angle deepening than LE alone in plateau iris eyes. This study directly compares an LE/ECPL treatment group with a control group.

Purpose: Quantitatively determine the effect of LE/ECPL versus LE alone for eyes with plateau iris configuration/plateau iris syndrome (PIC/PIS) on angle parameters. Read More

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The Use of Anterior-Segment Optical-Coherence Tomography for the Assessment of the Iridocorneal Angle and Its Alterations: Update and Current Evidence.

J Clin Med 2021 Jan 11;10(2). Epub 2021 Jan 11.

Ophthalmic Institute, ASST Fatebenefratelli-Sacco, 20121 Milan, Italy.

The introduction of anterior-segment optical-coherence tomography (AS-OCT) has led to improved assessments of the anatomy of the iridocorneal-angle and diagnoses of several mechanisms of angle closure which often result in raised intraocular pressure (IOP). Continuous advancements in AS-OCT technology and software, along with an extensive research in the field, have resulted in a wide range of possible parameters that may be used to diagnose and follow up on patients with this spectrum of diseases. However, the clinical relevance of such variables needs to be explored thoroughly. Read More

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January 2021

Outcomes of combined gonioscopy-assisted transluminal trabeculotomy and goniosynechialysis in primary angle closure: a retrospective case series.

Int Ophthalmol 2021 Apr 3;41(4):1223-1231. Epub 2021 Jan 3.

Department of Frontier Medical Science and Technology for Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan.

Purpose: To evaluate the additional intraocular pressure (IOP) lowering effect of gonioscopy-assisted transluminal trabeculotomy (GATT) to contemporary goniosynechialysis (GSL) in endeavouring to abolish subsequent occlusion after chronic iridotrabecular contact in primary angle closure (PAC) patients.

Methods: A retrospective case series of all PAC eyes underwent GATT + GSL with or without phacoemulsification and intraocular lens implantation (PEA + IOL) from December 2016 to May 2018 were recruited. IOP and the number of anti-glaucoma medications were compared pre- and post-operatively by Wilcoxon signed-rank test. Read More

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Using Anterior Segment Optical Coherence Tomography (ASOCT) Parameters to Determine Pupillary Block Versus Plateau Iris Configuration.

J Glaucoma 2020 11;29(11):1036-1042

Ruiz Department of Ophthalmology and Visual Science, McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth).

PRéCIS:: The potential parameters for differentiating pupillary block (PB) from plateau iris configuration (PIC) on anterior segment optical coherence tomography (ASOCT) are lens/pupil size parameters and angles. Further study is needed to determine a landmark peripheral to the centroid of the iris.

Purpose: Investigate anterior segment parameters to distinguish between 2 mechanisms of angle closure, PB and PIC, using swept-source Fourier domain ASOCT. Read More

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November 2020

Plateau iris syndrome and angle-closure glaucoma in a patient with nail-patella syndrome.

Am J Ophthalmol Case Rep 2020 Dec 20;20:100886. Epub 2020 Aug 20.

Einhorn Clinical Research Center, New York Eye and Ear Infirmary of Mount Sinai, 310 E 14th St, New York, NY, 10003, USA.

Purpose: To describe a case of plateau iris syndrome (PIS) and angle-closure glaucoma (ACG) in a patient with nail-patella syndrome (NPS).

Observation: A 33 year-old woman of Slovakian ancestry from Norway with a history of NPS presented with angle-closure secondary to plateau iris. At the time of her NPS diagnosis, she had no ocular pathology. Read More

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December 2020

Size Matters for Interplicata Diameter: A Case-Control Study of Plateau Iris.

Ophthalmol Glaucoma 2020 Nov - Dec;3(6):475-480. Epub 2020 Jul 2.

W. K. Kellogg Eye Center, Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan; Department of Ophthalmology & Visual Science, The Ohio State University Wexner Medical Center, Columbus, Ohio. Electronic address:

Purpose: Ultrasound biomicroscopy (UBM) has been used to characterize anterior segment dimensions in plateau iris configuration (PIC), but transverse measurements between the recesses of the ciliary sulcus (sulcus-to-sulcus diameter [STSD]) and the ciliary body processes (interplicata diameter [IPD]) have not been reported. We measured STSD and IPD and compared these among eyes with PIC, primary angle closure (PAC), and control eyes with open angles.

Design: Retrospective, cross-sectional clinical study. Read More

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Plateau Iris and Severity of Primary Angle Closure Glaucoma.

Am J Ophthalmol 2020 12 29;220:1-8. Epub 2020 Jul 29.

Singapore Eye Research Institute, Singapore; Singapore National Eye Centre, Singapore; Duke-National University of Singapore Medical School, Singapore; Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore. Electronic address:

Purpose: To compare the distribution of plateau iris in eyes across varying severity of primary angle closure glaucoma (PACG) using standardized ultrasound biomicroscopy (UBM) criteria.

Design: Cross-sectional study.

Methods: UBM was performed on 210 patients with PACG who had previously undergone laser peripheral iridotomy. Read More

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December 2020

Evaluation of anterior chamber angle by van Herick grading and ultrasound biomicroscopy in light and dark conditions for finding appositional angle closure and plateau iris configuration.

Acta Ophthalmol 2021 Feb 22;99(1):e86-e95. Epub 2020 Jun 22.

Kanto Central Hospital of the Mutual Aid Association of Public School Teachers, Setagaya, Tokyo, Japan.

Purpose: To evaluate association of the van Herick (VH) grades with the ultrasound biomicroscopic (UBM) parameters, appositional irido-trabecular contact (A-ITC) and plateau iris (PI) in a randomly sampled population.

Methods: A 10% random sample of all residents aged 40 or older of the Kumejima study underwent UBM under dark and light conditions in the four quadrants of right eyes.

Results: Of 301 right eyes with eligible UBM images, 101 (33. Read More

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February 2021

Quantification of Iridotrabecular Contact in Primary Angle-Closure Disease.

J Glaucoma 2020 08;29(8):681-688

Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.

Precis: Iridotrabecular contact (ITC), a measure of angle closure, can be quantified along with other angle parameters on anterior segment optical coherence tomography (ASOCT). Hence, angle changes and angle closure mechanisms can be detected predicting the efficacy of iridotomy.

Purpose: To assess 360-degree ITC and ocular parameter changes, after laser peripheral iridotomy (LPI), in primary angle-closure disease (PACD) subgroups. Read More

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Drug-induced Acute Angle-closure Glaucoma: A Review.

J Curr Glaucoma Pract 2019 Sep-Dec;13(3):104-109

Department of Ophthalmology, UCI Health Gavin Herbert Eye Institute, University of California, Irvine, California, USA.

Aim: Our goal is to review current literature regarding drug-induced acute angle-closure glaucoma (AACG) and provide ophthalmologists and general practitioners with a thorough understanding of inciting medications and treatment pitfalls to be avoided.

Background: Drug-induced AACG is an ophthalmological emergency that ophthalmologists and general practitioners should be familiar with, given its potentially blinding consequences. Common anatomical risk factors for AACG include a shallow anterior chamber depth, short axial length, plateau iris configuration, thick lens, anteriorly positioned lens, and rarely, intraocular tumor. Read More

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Exploring the Occurrence Mechanisms of Acute Primary Angle Closure by Comparative Analysis of Ultrasound Biomicroscopic Data of the Attack and Fellow Eyes.

Biomed Res Int 2020 24;2020:8487907. Epub 2020 Apr 24.

Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, China.

Purpose: To explore the anatomical characteristics and occurrence mechanisms of acute primary angle closure (APAC) by comparing the quantitative data of UBM images of the APAC and fellow eyes.

Methods: 131 patients (262 eyes) were studied over five years by retrospective analysis. The quantitative data from UBM images including angle opening distance at 500 m (AOD500), trabecular-iris angle (TIA), iris convexity (IC), iris span (IS), iris-lens angle (ILA), iris-lens contact distance (ILCD), iris-ciliary process angle (ICPA), and limbus-ciliary body angle (LCBA) were retrospectively recorded; comparative analysis of the APAC and fellow eyes was performed. Read More

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February 2021

Argon Laser Iridoplasty for Plateau Iris Syndrome: Long-Term Outcomes of 48 Eyes.

J Glaucoma 2020 04;29(4):e27

Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto ON, Canada.

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Anterior Chamber Angles in Different Types of Mucopolysaccharidoses.

Am J Ophthalmol 2020 04 13;212:175-184. Epub 2020 Jan 13.

Department of Ophthalmology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan; Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan; Department of Ophthalmology and Visual Science, Tzu Chi University, Hualien, Taiwan. Electronic address:

Purpose: To evaluate the anterior chamber angle status and estimate the intraocular pressure (IOP) in patients with mucopolysaccharidoses (MPSs) type I, II, IV, and VI.

Design: Prospective cross-sectional study.

Methods: This study enrolled 27 consecutive MPS patients (8 patients with MPS I, 4 patients with MPS II, 9 patients with MPS IV, and 6 patients with MPS VI) and 20 normal control subjects. Read More

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Spontaneous malignant glaucoma: Case report and review of the literature.

Saudi J Ophthalmol 2019 Oct-Dec;33(4):398-400. Epub 2018 Dec 7.

Ophthalmology Department, University Hospital Ramón y Cajal, Madrid, Spain.

Malignant glaucoma usually occurs after anterior segment surgery (typically after glaucoma surgery). The aim of this article is to report a case of spontaneous malignant glaucoma (SpMG), which required phacovitrectomy for resolution and to review the cases of SpMG reported in modern literature. Only nine cases were identified. Read More

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December 2018

Iridoplasty for plateau iris syndrome: a systematic review.

BMJ Open Ophthalmol 2019 22;4(1):e000340. Epub 2019 Sep 22.

III, CHNO, Paris, France.

Plateau iris syndrome (PIS) is a frequent cause of angle closure. Argon laser peripheral iridoplasty (ALPI) has been proposed in PIS to widen the iridocorneal angle. The objective of the present study was to perform a systematic review of the available studies evaluating the efficacy of ALPI on intraocular pressure (IOP), iridocorneal angle opening and the number of medications in patients with chronic angle-closure associated with PIS. Read More

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September 2019

Increased choroidal thickness in primary angle closure measured by swept-source optical coherence tomography in Caucasian population.

Int Ophthalmol 2020 Jan 1;40(1):195-203. Epub 2019 Oct 1.

Ophthalmology Department, Glaucoma Institute, Saint Joseph Hospital, Paris, France.

Purpose: A role of the choroid has been suggested in the pathophysiology of angle closure. We assessed the choroidal thickness (CT) in Caucasian patients with primary angle closure (PAC) and in a subgroup of patients with plateau iris using swept-source optical coherence tomography (SS-OCT) compared to normal eyes.

Methods: This prospective cohort study in a hospital-based population in a tertiary center compared consecutive patients with PAC to healthy controls. Read More

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January 2020

Argon Laser Iridoplasty For Plateau Iris Syndrome: Long-Term Outcomes of 48 Eyes.

J Glaucoma 2019 09;28(9):767-771

Department of Ophthalmology, Saint Joseph Hospital.

Precis: Argon laser peripheral iridoplasty (ALPI) was performed on 48 eyes with plateau iris syndrome (PIS). Indentation gonioscopy was used to monitor the opening of the iridocorneal angle. Mean intraocular pressure (IOP) at 5 years decreased from 15. Read More

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September 2019

What Are we to do About Plateau Iris Syndrome?

Authors:
Paul Palmberg

J Glaucoma 2019 09;28(9):765-766

Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL.

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September 2019

Association of Retinopathy of Prematurity and Plateau iris.

J Glaucoma 2019 07;28(7):e121-e123

Gavin Herbert Eye Institute, University of California, Irvine, CA.

We present a case series describing a unique entity as it relates to plateau iris. There have been many established risk factors for plateau iris, but we present the following cases that describe patients with plateau iris in the setting of prematurity and/or retinopathy of prematurity as well as high myopia or emmetropia. We believe this to be a distinct form of plateau iris resulting from abnormal ciliary body and angle development in the preterm infant. Read More

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Detecting autonomic dysfunction in patients with glaucoma using dynamic pupillometry.

Medicine (Baltimore) 2019 Mar;98(11):e14658

Department of Ophthalmology and Visual Science.

Autonomic dysfunction is a feature of glaucoma patients, which are reported to be related to glaucoma progression. We investigated pupil responses to a light flash using dynamic pupillometry in glaucoma patients to assess autonomic nervous system status. In total, 97 glaucoma patients, including 21 eyes of 21 glaucoma patients with cardiac autonomic dysfunction, were enrolled. Read More

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Longitudinal Change in Peripheral Anterior Chamber Depth of Eyes with Angle Closure after Laser Iridotomy.

J Ophthalmol 2018 24;2018:9106247. Epub 2018 Dec 24.

Department of Ophthalmology, University of Yamanashi, Chuo, Yamanashi, Japan.

Purpose: To investigate longitudinal changes in peripheral anterior chamber depth (pACD) of eyes with angle closure after laser iridotomy (LI) and factors related to prognosis.

Design: Retrospective cohort study.

Methods: Eyes with primary angle closure (PAC), acute PAC, or chronic angle closure glaucoma (CACG) that underwent LI (LI group) and eyes that underwent phacoemulsification and intraocular lens insertion (PEA + IOL group) were employed. Read More

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December 2018

Intra-operative ASOCT determined changes in angle recess in plateau iris syndrome post phaco alone and post phaco-endocycloplasty.

Graefes Arch Clin Exp Ophthalmol 2019 Mar 29;257(3):663-664. Epub 2018 Nov 29.

L V Prasad Eye Institute, Banjara Hills, Hyderabad, India.

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Plateau Iris: The Terminology and Clinical Relevance.

J Glaucoma 2018 08;27(8):e141-e142

Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto ON, Canada.

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Pattern Scanning Laser (PASCAL) for Peripheral Iridoplasty in Eyes With Plateau Iris Syndrome: A Novel Application.

J Glaucoma 2018 07;27(7):e124-e127

Glaucoma Research Center, Montchoisi Clinic, Swiss Vision Network, Lausanne, Switzerland.

Purpose: The purpose of this study was to evaluate safety and efficacy of pattern scanning laser (PASCAL) for peripheral iridoplasty in eyes with plateau iris syndrome.

Materials And Methods: This study was a retrospective review of cases that underwent PASCAL laser peripheral iridoplasty. Eyes with plateau iris syndrome confirmed on gonioscopy and ultrasound biomicroscopy were included in the study. Read More

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Long-term Changes in Anterior Segment Characteristics of Eyes With Different Primary Angle-Closure Mechanisms.

Am J Ophthalmol 2018 07 12;191:54-63. Epub 2018 Apr 12.

Department of Applied Statistics, Gachon University, Seongnam-Si, Gyeonggi-do, South Korea.

Purpose: To assess long-term changes in the anterior segment (AS) of eyes with different angle-closure mechanisms.

Design: Retrospective cohort study.

Methods: In total, 133 eyes (from 75 participants) with angle closure were enrolled. Read More

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Plateau Iris - Therapeutic options and functional results after treatment.

Rom J Ophthalmol 2017 Apr-Jun;61(2):117-122

"Gr. T. Popa" University of Medicine and Pharmacy, Iași, Romania.

We present the therapeutic options and functional results in patients with plateau iris (syndrome or configuration) in consecutive case series. Our study included newly diagnosed patients with acute angle closure by "plateau iris" (configuration or syndrome), between June 2016 and April 2017. Series of 8 consecutive patients met the inclusion criteria, all being females. Read More

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Ultrasound Biomicroscopic Diagnosis of Angle-closure Mechanisms in Vietnamese Subjects With Unilateral Angle-closure Glaucoma.

J Glaucoma 2018 02;27(2):115-120

Singapore Eye Research Institute, Singapore National Eye Centre.

Objective: To identify the mechanisms of angle closure in the fellow eyes of Vietnamese subjects with unilateral primary angle-closure glaucoma (PACG) using ultrasound biomicroscopy (UBM) before and after prophylactic laser peripheral iridotomy (LPI).

Design: This is a prospective observational study.

Participants: Patients diagnosed with PACG in one eye and primary angle-closure suspect (PACS) in the other eye were included in this study, conducted from January 2014 to October 2014 at Vietnam National Institute of Ophthalmology. Read More

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February 2018

Qualitative and quantitative evaluation of acute angle-closure mechanisms.

BMC Ophthalmol 2017 Dec 11;17(1):246. Epub 2017 Dec 11.

From the Department of Ophthalmology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.

Background: To evaluate ocular biometric parameters in different subtypes of acute angle closure and compared to fellow eyes of AAC and PACS eyes.

Methods: This is a retrospective chart review study. A total of 167 eyes (96 patients) consisting of 71 AAC eyes, 71 fellow eyes of AAC, and 25 PACS eyes were recruited. Read More

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December 2017