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43 Results Found

  • Article
  • Open Access
1,992 Views
17 Pages

Increased intraocular pressure (IOP) is the most important risk factor for glaucoma. The role of IOP fluctuation, independently from elevated IOP, has not yet been confirmed in glaucoma. We investigated the effects of IOP fluctuation itself on retina...

  • Article
  • Open Access
1 Citations
1,890 Views
15 Pages

17 February 2024

Background: A relationship between glaucoma and epiretinal membrane (ERM) has been suggested previously. We investigated the association between intraocular pressure (IOP) fluctuation and idiopathic ERM in patients with glaucoma or glaucoma suspect....

  • Article
  • Open Access
7 Citations
2,625 Views
11 Pages

Nocturnal and circadian intraocular pressure (IOP) fluctuations are important issues in glaucoma treatment. Ripasudil 0.4% eye drops, a new glaucoma medication, lowers IOP by increasing aqueous humor outflow through the trabecular meshwork. We aimed...

  • Article
  • Open Access
8 Citations
3,501 Views
7 Pages

Intraocular Pressure Fluctuation during Aerobic Exercise at Different Exercise Intensities

  • Toshihiro Kawae,
  • Takuo Nomura,
  • Daisuke Iwaki,
  • Yuki Nakashima,
  • Kenichi Fudeyasu,
  • Hiroaki Kataoka,
  • Tomoyasu Ishiguro and
  • Hiroaki Kimura

Few studies have examined the effects of different aerobic-exercise intensities on intraocular-pressure (IOP) changes. This may be important for eye diseases that are impacted by IOP or its fluctuation, including glaucoma, and diabetes that is compli...

  • Article
  • Open Access
3 Citations
1,575 Views
16 Pages

17 April 2024

Background: Thickening of the inner nuclear layer (INL) or microcystic macular changes has been reported to be implicated in glaucoma patients, but their potential impact on disease progression remains unclear. We investigated the relationship betwee...

  • Case Report
  • Open Access
2 Citations
3,697 Views
10 Pages

Time Course in Ocular Blood Flow and Pulse Waveform in a Case of Ocular Ischemic Syndrome with Intraocular Pressure Fluctuation

  • Ryo Yamazaki,
  • Ryuya Hashimoto,
  • Hidetaka Masahara,
  • Masashi Sakamoto and
  • Takatoshi Maeno

10 June 2020

We report on a 70-year-old Japanese man with complaints of worsening left visual acuity who was diagnosed with ocular ischemic syndrome (OIS) associated with internal carotid artery (ICA) stenosis. A gonioscopy examination showed rubeosis iridis and...

  • Article
  • Open Access
7 Citations
1,792 Views
9 Pages

8 December 2022

Background: Schlemm’s canal (SC) targeted procedures constitute a promising therapy for open angle glaucoma (POAG), safer and less invasive. However, little attention was paid to the intraocular pressure (IOP) variation in patients receiving th...

  • Article
  • Open Access
2 Citations
1,790 Views
13 Pages

A 3D-Printed Aqueous Drainage Tube with an Expandable Inner Diameter to Accommodate the Intraocular Pressure (IOP) Fluctuations After Glaucoma Surgery

  • Jae-Seok Kim,
  • Hun-Jin Jeong,
  • Ji-Woo Park,
  • So-Jung Gwak,
  • Jeong-Sun Han,
  • Kyoung In Jung and
  • Seung-Jae Lee

5 January 2025

Glaucoma treatment involves reducing the intraocular pressure (IOP), which can damage the optic nerve, to a normal range. Aqueous drainage devices may be used for treatment, and a variety of devices have been proposed. However, they have a non-variab...

  • Article
  • Open Access
5 Citations
8,026 Views
14 Pages

21 March 2012

Objective: To compare the effects of dorzolamide and timolol add-on therapy in open-angle glaucoma (OAG) patients previously treated with prostaglandin analogue (Pg), by evaluating fluctuations in the intraocular (IOP), blood (BP), ocular perfusion p...

  • Article
  • Open Access
2 Citations
1,640 Views
12 Pages

Comparison of SENSIMED Triggerfish® (TF) 24-Hour Monitoring in Open-Angle Glaucoma Patients Before and After Trabeculectomy

  • Anna Beck,
  • Michael Uhrig,
  • Alexander Schuster,
  • Christina Korb,
  • Norbert Pfeiffer and
  • Katrin Lorenz

19 March 2025

Background/Objectives: In glaucoma patients, the fluctuation in intraocular pressure during the day seems to have an influence on the progression of the disease. The contact lens sensor (CLS) Triggerfish® from the company SENSIMED records ocular...

  • Article
  • Open Access
3,057 Views
11 Pages

Evaluating Intraocular Pressure Alterations during Large Muscle Group Isometric Exercises with Varying Head and Body Positions

  • Nina Krobot Cutura,
  • Maksimilijan Mrak,
  • Dominik-Mate Cutura,
  • Ivanka Petric Vickovic and
  • Lana Ruzic

Performing physical exercise affects intraocular pressure, and its elevation and fluctuations are the main risk factors for glaucoma development or progression. The aim of this study was to examine the acute alterations in intraocular pressure (IOP)...

  • Case Report
  • Open Access
3 Citations
6,886 Views
7 Pages

8 September 2016

An 80-year-old woman with normal-tension glaucoma was transferred to our clinic 9 years ago. She exhibited progressive visual field defect despite intraocular pressure in both eyes remaining stable in the low teens after treatment with prostaglandin-...

  • Article
  • Open Access
1,364 Views
10 Pages

Effect of Visual Field Test on Intraocular Pressure in Glaucoma Patients

  • Weon Jin Jang,
  • Han Jun Chung,
  • Min Woo Lee,
  • Jung Tae Kim,
  • Hyung-Bin Lim and
  • Kee Sup Park

9 September 2025

Objectives: To evaluate changes in intraocular pressure (IOP) before versus after a visual field test in glaucoma patients. Methods: A total of 132 patients with glaucoma and 103 control subjects who visited Konyang University Hospital between August...

  • Article
  • Open Access
7 Citations
1,850 Views
10 Pages

Factors Associated with Elevated Tumor Necrosis Factor-α in Aqueous Humor of Patients with Open-Angle Glaucoma

  • Younhea Jung,
  • Kyoung Ohn,
  • Heejong Shin,
  • Si Eun Oh,
  • Chan Kee Park and
  • Hae-Young Lopilly Park

5 September 2022

Tumor necrosis factor-alpha (TNF-α) is an important modulator of neuroinflammation, secreted from activated glial cells in response to intraocular stress. The purpose of this study was to investigate the clinical factors associated with elevate...

  • Review
  • Open Access
4 Citations
3,898 Views
10 Pages

Novel Insight of Histamine and Its Receptor Ligands in Glaucoma and Retina Neuroprotection

  • Silvia Sgambellone,
  • Laura Lucarini,
  • Cecilia Lanzi and
  • Emanuela Masini

11 August 2021

Glaucoma is a multifactorial neuropathy characterized by increased intraocular pressure (IOP), and it is the second leading cause of blindness worldwide after cataracts. Glaucoma combines a group of optic neuropathies characterized by the progressive...

  • Article
  • Open Access
9 Citations
5,236 Views
20 Pages

Increased Antioxidant Capacity and Pro-Homeostatic Lipid Mediators in Ocular Hypertension—A Human Experimental Model

  • Mia Langbøl,
  • Sarkis Saruhanian,
  • Thisayini Baskaran,
  • Daniel Tiedemann,
  • Zaynab A. Mouhammad,
  • Anne Katrine Toft-Kehler,
  • Bokkyoo Jun,
  • Rupali Vohra,
  • Nicolas G. Bazan and
  • Miriam Kolko

15 September 2020

The main risk factor for primary open-angle glaucoma (POAG) is increased intraocular pressure (IOP). It is of interest that about half of the patients have an IOP within the normal range (normal-tension glaucoma, NTG). Additionally, there is a group...

  • Article
  • Open Access
17 Citations
2,436 Views
9 Pages

Pulsatile Trabecular Meshwork Motion: An Indicator of Intraocular Pressure Control in Primary Open-Angle Glaucoma

  • Rong Du,
  • Chen Xin,
  • Jingjiang Xu,
  • Jianping Hu,
  • Huaizhou Wang,
  • Ningli Wang and
  • Murray Johnstone

10 May 2022

(1) Background: To investigate the value of pulsatile trabecular meshwork (TM) motion in predicting the diurnal intraocular pressure (IOP) fluctuation of primary open-angle glaucoma (POAG). (2) Methods: This cross-sectional study recruited 20 normal...

  • Article
  • Open Access
1,410 Views
13 Pages

19 June 2025

Background/Objectives: Different surgical techniques are available in cases of missing or insufficient capsular bag support. Next to the anterior chamber or iris-fixated intraocular lenses (IOL), the implantation of the Carlevale IOL provides a sutur...

  • Review
  • Open Access
214 Citations
26,933 Views
38 Pages

Recent Progress of Miniature MEMS Pressure Sensors

  • Peishuai Song,
  • Zhe Ma,
  • Jing Ma,
  • Liangliang Yang,
  • Jiangtao Wei,
  • Yongmei Zhao,
  • Mingliang Zhang,
  • Fuhua Yang and
  • Xiaodong Wang

1 January 2020

Miniature Microelectromechanical Systems (MEMS) pressure sensors possess various merits, such as low power consumption, being lightweight, having a small volume, accurate measurement in a space-limited region, low cost, little influence on the object...

  • Article
  • Open Access
3 Citations
2,509 Views
10 Pages

Risk Factors for the Structural Progression of Myopic Glaucomatous Eyes with a History of Laser Refractive Surgery

  • Kwanghyun Lee,
  • Bo Yi Kim,
  • Gong Je Seong,
  • Chan Yun Kim,
  • Hyoung Won Bae and
  • Sang Yeop Lee

29 May 2021

As laser refractive surgeries (LRS) have been widely performed to correct myopia, ophthalmologists easily encounter patients with glaucoma who have a history of LRS. It is well known that intraocular pressure (IOP) in eyes with glaucoma is not accura...

  • Review
  • Open Access
42 Citations
12,367 Views
25 Pages

Influence of Circadian Rhythm in the Eye: Significance of Melatonin in Glaucoma

  • Alejandro Martínez-Águila,
  • Alba Martín-Gil,
  • Carlos Carpena-Torres,
  • Cristina Pastrana and
  • Gonzalo Carracedo

24 February 2021

Circadian rhythm and the molecules involved in it, such as melanopsin and melatonin, play an important role in the eye to regulate the homeostasis and even to treat some ocular conditions. As a result, many ocular pathologies like dry eye, corneal wo...

  • Review
  • Open Access
17 Citations
5,247 Views
20 Pages

Metformin and Glaucoma—Review of Anti-Fibrotic Processes and Bioenergetics

  • Daire J. Hurley,
  • Mustapha Irnaten and
  • Colm O’Brien

19 August 2021

Glaucoma is the leading cause of irreversible blindness globally. With an aging population, disease incidence will rise with an enormous societal and economic burden. The treatment strategy revolves around targeting intraocular pressure, the principl...

  • Article
  • Open Access
1 Citations
1,444 Views
10 Pages

Variations in Intraocular Pressure Among Athletes Across Different Sports Disciplines

  • Feliciana Menna,
  • Laura De Luca,
  • Stefano Lupo,
  • Alessandro Meduri and
  • Enzo Maria Vingolo

Objectives: Elevated intraocular pressure (IOP) is a well-known risk factor for glaucoma. This study investigated the impact of two distinct types of physical activity—endurance (marathon running) and strength (weightlifting)—on IOP varia...

  • Article
  • Open Access
2 Citations
2,453 Views
9 Pages

Glaucoma Progression after Delivery in Patients with Open-Angle Glaucoma Who Discontinued Glaucoma Medication during Pregnancy

  • Duri Seo,
  • Taekjune Lee,
  • Joo Yeon Kim,
  • Gong Je Seong,
  • Wungrak Choi,
  • Hyong Won Bae and
  • Chan Yun Kim

19 May 2021

In this retrospective study, clinical characteristics and glaucoma progression of open-angle glaucoma (OAG) patients who discontinued intraocular pressure (IOP)-lowering medication during pregnancy were investigated. Glaucoma progression was determin...

  • Article
  • Open Access
278 Views
12 Pages

13 December 2025

Purpose: This study investigates the association between obstructive sleep apnea (OSA), dry eye disease (DED), and glaucoma, focusing on the impact of positive airway pressure (PAP) usage and air leakage. Methods: This retrospective cross-sectional s...

  • Review
  • Open Access
378 Views
22 Pages

Current and Emerging Technologies for Continuous Intraocular Pressure Monitoring in the Control of Glaucoma Progression: A Scoping Review

  • Daniel Monsálvez-Romín,
  • Noelia Martínez-Albert,
  • Mari Carmen García-Domene and
  • Susana Ortí-Navarro

12 December 2025

Background/Objectives: Glaucoma affects over 70 million people worldwide and is a major cause of irreversible blindness, with elevated intraocular pressure (IOP) as the only modifiable risk factor. Conventional techniques like Goldmann applanation to...

  • Article
  • Open Access
18 Citations
3,232 Views
17 Pages

The Effect of Intraocular Pressure Load Boundary on the Biomechanics of the Human Conventional Aqueous Outflow Pathway

  • Alireza Karimi,
  • Reza Razaghi,
  • Seyed Mohammadali Rahmati,
  • J. Crawford Downs,
  • Ted S. Acott,
  • Mary J. Kelley,
  • Ruikang K. Wang and
  • Murray Johnstone

Background: Aqueous humor outflow resistance in the trabecular meshwork (TM), juxtacanalicular connective tissue (JCT), and Schlemm’s canal (SC) endothelium of the conventional outflow pathway actively contribute to intraocular pressure (IOP) r...

  • Article
  • Open Access
2,251 Views
20 Pages

Immune Analysis Using Vitreous Optical Coherence Tomography Imaging in Rats with Steroid-Induced Glaucoma

  • Maria J. Rodrigo,
  • Manuel Subías,
  • Alberto Montolío,
  • Teresa Martínez-Rincón,
  • Alba Aragón-Navas,
  • Irene Bravo-Osuna,
  • Luis E. Pablo,
  • Jose Cegoñino,
  • Rocío Herrero-Vanrell and
  • Elena Garcia-Martin
  • + 1 author

Glaucoma is a multifactorial pathology involving the immune system. The subclinical immune response plays a homeostatic role in healthy situations, but in pathological situations, it produces imbalances. Optical coherence tomography detects immune ce...

  • Article
  • Open Access
12 Citations
2,481 Views
16 Pages

Management of Patients with Diabetic Macular Edema Switched from Dexamethasone Intravitreal Implant to Fluocinolone Acetonide Intravitreal Implant

  • Stéphanie Baillif,
  • Pascal Staccini,
  • Michel Weber,
  • Marie-Noëlle Delyfer,
  • Yannick Le Mer,
  • Vincent Gualino,
  • Laurence Collot,
  • Pierre-Yves Merite,
  • Catherine Creuzot-Garcher and
  • Laurent Kodjikian
  • + 1 author

To assess anatomical and functional outcomes after switching from dexamethasone implant (DEXi) to fluocinolone acetonide implant (FAci) in 113 diabetic macular edema eyes, a multicentric retrospective observational study was conducted. Seventy-five e...

  • Article
  • Open Access
9 Citations
2,931 Views
13 Pages

Do Age and Sex Play a Role in the Intraocular Pressure Changes after Acrobatic Gymnastics?

  • Javier Gene-Morales,
  • Andrés Gené-Sampedro,
  • Alba Martín-Portugués and
  • Inmaculada Bueno-Gimeno

13 October 2021

To evaluate the effects of an acrobatic gymnastics (AG) training session on intraocular pressure (IOP), a familiarization session was employed to confirm the participant’s suitability for the study. Forty-nine gymnasts (63.27% females, 18–40 years ol...

  • Article
  • Open Access
9 Citations
2,307 Views
11 Pages

The purpose of the study was to explore factors associated with glaucomatous deterioration in eyes with primary angle closure (PAC) after lens extraction, including PAC suspect (PACS), PAC, and PAC glaucoma (PACG). We retrospectively analyzed data of...

  • Article
  • Open Access
2 Citations
1,691 Views
12 Pages

The Preserflo MicroShunt Affects Microvascular Flow Density in Optical Coherence Tomography Angiography

  • Jens Julian Storp,
  • Hannah Schatten,
  • Friederike Elisabeth Vietmeier,
  • Ralph-Laurent Merté,
  • Larissa Lahme,
  • Julian Alexander Zimmermann,
  • Verena Anna Englmaier,
  • Nicole Eter and
  • Viktoria Constanze Brücher

Intraocular pressure (IOP) lowering surgery has been shown to alter microvascular density in glaucoma patients. The aim of this study is to report changes in retinal flow density (FD) over the course of treatment with the Preserflo MicroShunt, using...

  • Article
  • Open Access
8 Citations
3,609 Views
17 Pages

Dysfunctional cGMP Signaling Leads to Age-Related Retinal Vascular Alterations and Astrocyte Remodeling in Mice

  • Joseph M. Holden,
  • Sara Al Hussein Al Awamlh,
  • Louis-Philippe Croteau,
  • Andrew M. Boal,
  • Tonia S. Rex,
  • Michael L. Risner,
  • David J. Calkins and
  • Lauren K. Wareham

The nitric oxide–guanylyl cyclase-1–cyclic guanylate monophosphate (NO–GC-1–cGMP) pathway is integral to the control of vascular tone and morphology. Mice lacking the alpha catalytic domain of guanylate cyclase (GC1−/&mi...

  • Article
  • Open Access
28 Citations
6,692 Views
15 Pages

Role of Histamine H3 Receptor Antagonists on Intraocular Pressure Reduction in Rabbit Models of Transient Ocular Hypertension and Glaucoma

  • Cecilia Lanzi,
  • Laura Lucarini,
  • Mariaconcetta Durante,
  • Silvia Sgambellone,
  • Alessandro Pini,
  • Stefano Catarinicchia,
  • Dorota Łażewska,
  • Katarzyna Kieć-Kononowicz,
  • Holger Stark and
  • Emanuela Masini

24 February 2019

Intraocular pressure (IOP) has a tendency to fluctuate throughout the day, reaching its peak in the early morning in healthy subjects or glaucoma patients. Likewise, histamine tone also fluctuates over time, being lower at nighttime. Numerous studies...

  • Article
  • Open Access
4 Citations
1,565 Views
8 Pages

The Effect of Esophagogastroduodenoscopy on Intraocular Pressure

  • Maddalena De Bernardo,
  • Antonella Santonicola,
  • Marco Gioia,
  • Livio Vitiello,
  • Ferdinando Cione,
  • Sergio Pagliarulo,
  • Paola Iovino and
  • Nicola Rosa

21 February 2024

Background: Esophagogastroduodenoscopy (EGD) is an endoscopic examination of the upper gastrointestinal tract that requires insufflation with gas, leading to intra-abdominal hypertension (IAH). There is evidence suggesting that IAH positively correla...

  • Article
  • Open Access
19 Citations
5,991 Views
14 Pages

Long-Term Outcomes of the PRESERFLO MicroShunt Implant in a Heterogeneous Glaucoma Cohort

  • Jens Julian Storp,
  • Friederike Elisabeth Vietmeier,
  • Ralph-Laurent Merté,
  • Raphael Koch,
  • Julian Alexander Zimmermann,
  • Nicole Eter and
  • Viktoria Constanze Brücher

4 July 2023

The Preserflo MicroShunt represents a novel glaucoma treatment device, necessitating long-term follow-up data to accurately assess its efficacy. The aim of this study is to report real-world data of a heterogenous glaucoma cohort who received Preserf...

  • Article
  • Open Access
10 Citations
3,536 Views
21 Pages

Structural Basis for Agonistic Activity and Selectivity toward Melatonin Receptors hMT1 and hMT2

  • Mattia Cantarini,
  • Dario Rusciano,
  • Rosario Amato,
  • Alessio Canovai,
  • Maurizio Cammalleri,
  • Massimo Dal Monte,
  • Cristina Minnelli,
  • Emiliano Laudadio,
  • Giovanna Mobbili and
  • Giorgia Giorgini
  • + 1 author

2 February 2023

Glaucoma, a major ocular neuropathy originating from a progressive degeneration of retinal ganglion cells, is often associated with increased intraocular pressure (IOP). Daily IOP fluctuations are physiologically influenced by the antioxidant and sig...

  • Article
  • Open Access
4 Citations
2,111 Views
20 Pages

Background/objectives: The aim of the study was to create a nanofiber insert incorporating Timolol (TIM) and Dorzolamide (DOR), targeting the management of glaucoma. This condition encompasses a variety of chronic, advancing ocular disorders typicall...

  • Article
  • Open Access
3 Citations
2,715 Views
17 Pages

Short-Time Changes of Intraocular Pressure and Biomechanics of the Anterior Segment of the Eye during Water Drinking Test in Patients with XEN GelStent

  • Joanna Przeździecka-Dołyk,
  • Ewa Wałek,
  • Agnieszka Jóźwik,
  • Iwona Helemejko,
  • Magdalena Asejczyk-Widlicka and
  • Marta Misiuk-Hojło

29 December 2021

Purpose: Little is known about short-term changes in intraocular pressure (IOP) following minimally invasive glaucoma surgeries, such as post-XEN GelStent implantation. Although the importance of corneal biomechanics in glaucoma diagnostics has been...

  • Review
  • Open Access
181 Views
18 Pages

Choroidal and Retinal Permeability Changes in Chronic Kidney Disease—A Literature Review

  • Giacomo De Rosa,
  • Francesco Paolo De Rosa,
  • Giovanni Ottonelli and
  • Mario R. Romano

11 December 2025

Purpose: This review consolidates current evidence on how chronic kidney disease (CKD)-especially end-stage kidney disease (ESKD) and its treatments-alters choroidal and retinal vascular permeability, leading to changes in intraocular fluid homeostas...

  • Article
  • Open Access
110 Views
14 Pages

Comparison of Circadian Efficacy of Tafluprost Eye Drops (Taflotan Sine®) with Latanoprost Eye Drops (Xalatan®) in the Treatment of Open-Angle Glaucoma and Ocular Hypertension

  • Anna Beck,
  • Katharina Theresa Rauschkolb-Olk,
  • Anna Maria Welzel,
  • Peter Wolfrum,
  • Christina Korb,
  • Irene Schmidtmann,
  • Elsa Wilma Boehm and
  • Katrin Lorenz

17 December 2025

Background/Objectives: To investigate the non-inferiority of preservative-free (PF) tafluprost eye drops (Taflotan sine®) compared to latanoprost eye drops (Xalatan®) in reducing mean 24 h intraocular pressure (IOP) on the second day of a diu...

  • Article
  • Open Access
16 Citations
3,145 Views
10 Pages

Intraocular Pressure Measurements in Standing Position with a Rebound Tonometer

  • Maddalena De Bernardo,
  • Maria Borrelli,
  • Giovanni Cembalo and
  • Nicola Rosa

18 October 2019

Background and Objectives: It has been established that body position can play an important role in intraocular pressure (IOP) fluctuation. IOP has been previously shown to increase significantly when lying down, relative to sitting; this type of inv...

  • Article
  • Open Access
19 Citations
3,129 Views
12 Pages

Human Trabecular Meshwork (HTM) Cells Treated with TGF-β2 or Dexamethasone Respond to Compression Stress in Different Manners

  • Megumi Watanabe,
  • Tatsuya Sato,
  • Yuri Tsugeno,
  • Araya Umetsu,
  • Soma Suzuki,
  • Masato Furuhashi,
  • Yosuke Ida,
  • Fumihito Hikage and
  • Hiroshi Ohguro

To characterize our recently established in vitro glaucomatous human trabecular meshwork (HTM) models using dexamethasone (DEX)- or TGF-β2-treated HTM cells, (1) two-dimensional (2D) cultured HTM cells were characterized by means of the real-tim...