Ophthalmol Glaucoma
November 2024
Purpose: To investigate the agreement between the Icare HOME tonometer and the Goldmann Applanation Tonometry (GAT) in assessing the Peak Intraocular Pressure during the Water-Drinking Test (WDT).
Design: Prospective cross-sectional study.
Subjects: 79 eyes of 41 open-angle glaucoma patients were included in the study.
Prcis: Selective laser trabeculoplasty can be used as a substitute for medications in patients with mild-to-moderate glaucoma, reducing the cost of eye drop distribution in the Brazilian public health system.
Purpose: To observe the effectiveness of selective laser trabeculoplasty (SLT) as a substitute for eye drops in patients with open angle glaucoma in the Brazilian Public Health System.
Materials And Methods: SLT was performed bilaterally after medication washout.
This study aimed to investigate the effects of topical anesthetic and fluorescein drops on intraocular pressure (IOP), central corneal thickness (CCT) and biomechanical properties as measured by Corvis ST (CST-Oculus; Wezlar, Germany) in healthy eyes. A cross-sectional observational study was conducted on 46 healthy patients. The CST measurements were obtained before and immediately after the instillation of topical anesthetic and fluorescein drops.
View Article and Find Full Text PDFPurpose: Glaucoma is the main cause of irreversible blindness worldwide. Peak intraocular pressure is one of the main risk factors for glaucoma progression, and intraocular pressure reduction remains the only therapeutic strategy for all types of glaucoma. The main purpose of our study was to compare the baseline and peak intraocular pressure reduction obtained with the water drinking test between the two eyes of the same patients using 0.
View Article and Find Full Text PDFObjectives: To determine the effect of panretinal photocoagulation (PRP) on the peripapillary retinal nerve fiber layer (RNFL) in nonglaucomatous patients with proliferative diabetic retinopathy (PDR).
Methods: This is a prospective, single center, observational study. Thirty-eight eyes of 26 diabetic patients underwent PRP for proliferative diabetic retinopathy.
Structural and functional tests are essential for detecting and monitoring glaucomatous damage. However, the correlations between structural and functional tests in glaucoma are complex and faulty, with the combination of both modalities being recommended for better assessment of glaucoma. The objective of this review is to explore investigations from the last 5 years in the field of structure-function correlation in glaucoma that contributed to increment in the understanding of this correlation and have the potential to improve the diagnosis and detection of glaucoma progression.
View Article and Find Full Text PDFArq Bras Oftalmol
January 2020
Purpose: To determine the effect of panretinal photocoagulation on optic disk topographic parameters in non-glaucomatous patients with proliferative diabetic retinopathy.
Methods: This was a prospective, single-center, observational study. Thirty-eight eyes of 26 patients with diabetes underwent panretinal photocoagulation for proliferative diabetic retinopathy.
Purpose: The main objective of this study was to compare the intraocular pressure (IOP) response during the water drinking test (WDT) performed with 800 mL, 1000 mL, and 10 mL/kg of body weight and to test its relationship with body mass index (BMI).
Methods: In this prospective, observer-masked, observational study, patients treated with primary open-angle glaucoma were evaluated. In group I, 29 consecutive patients with body weight ≤60 kg underwent an 800 mL fluid challenge followed by a second WDT session with 10 mL/kg of body weight no longer than 4 months apart.
Purpose: To evaluate the ability of macular and multifocal (mf) pattern electroretinogram (PERG) to differentiate preperimetric glaucoma (PG) and glaucoma with hemifield loss (GHL) from controls, to compare the discrimination ability of PERG and fourier-domain optical coherence tomography (FD-OCT), and to assess the relationship between measurements.
Patients And Methods: Standard automated perimetry, steady-state and transient PERG and mfPERG measurements were obtained from PG (n=14, 24 eyes), GHL (n=5, 7 eyes), and controls (n=19, 22 eyes). Circumpapillary retinal nerve fiber layer (cpRNFL), full-thickness macula, and segmented macular layer thicknesses on FD-OCT were investigated.
Purpose: The purpose of this is to test the hypothesis the intraocular pressure (IOP) peaks during a stress test [the water drinking test (WDT)] can estimate the risk of future visual field progression in treated primary open-angle glaucoma (POAG) patients.
Patients And Methods: Design: Prospective, longitudinal study.
Setting: Clinical practice.
Intraocular pressure (IOP) peaks and means have been considered important factors for glaucoma onset and progression. However, peak IOP detection depends only on appropriated IOP checks at office visits, whereas the mean IOP requires longitudinal IOP data collection and may be affected by the interval between visits. Also, IOP peak assessment is necessary to verify if the peak pressure of a given patient is in target range, to evaluate glaucoma suspect risk, the efficacy of hypotensive drugs and to detect early loss of IOP control.
View Article and Find Full Text PDFPurpose: To assess the efficacy and safety of the new Susanna glaucoma drainage device (SGDD) in patients with neovascular and refractory glaucomas.
Materials And Methods: In this prospective study, patients with neovascular glaucoma or refractory glaucomas (defined as eyes with previous trabeculectomy failure) were enrolled. All eyes had to have intraocular pressure (IOP) above 21 mm Hg despite maximum tolerated topical medication, or recent documentation of anatomic and/or functional progression.
Purpose: To evaluate the intraocular pressure (IOP) peak and variability detected by moving the body from sitting to supine position (postural test) and by the water drinking test (WDT) in normal and primary open-angle glaucoma (POAG) subjects.
Patients And Methods: Prospective, cross-sectional observational analysis of 14 eyes of 14 normal subjects and 31 eyes of 31 patients with POAG. All POAG subjects were under clinical therapy.
Purpose: To evaluate variations in choroidal thickness (CT) during the water drinking test (WDT) in emmetropic eyes (EE) and highly myopic eyes (ME) using spectral-domain optical coherence tomography (SD-OCT).
Methods: Clinical trial performed at a tertiary care hospital comprising 30 randomly selected eyes. The WDT and SD-OCT macular scans were performed 10 and 45 min after water ingestion in 15 myopic and 15 EE of 15 healthy patients in each group.
Pattern electroretinography is used to assess the function of the inner retinal layers, particularly the retinal ganglion cell layer, using a reversing checkerboard or grating pattern that maintains a constant overall mean luminance over time. A normal transient response comprises a positive component of the wave (P50) followed by a longer negative component of the wave (N95). Glaucomatous optic neuropathy causes progressive loss of retinal ganglion cells, potentially detectable as abnormalities on examination, particularly in the N95 component.
View Article and Find Full Text PDFBackground: To evaluate the reproducibility of intraocular pressure peaks and fluctuation elicited during the water drinking test in treated glaucomatous patients with a long follow-up interval.
Design: Retrospective cohort study in a tertiary care practice.
Participants: Thirty-four treated primary open-angle glaucoma patients.
Clin Ophthalmol
August 2014
Objective: To assess the intraocular pressure (IOP)-lowering effect of travoprost 0.004%/timolol 0.5% fixed-dose combination (TRAV/TIM-FC) in patients not achieving the target IOP of ≤18 mmHg while on timolol 0.
View Article and Find Full Text PDFClin Exp Ophthalmol
September 2013
Background: The water-drinking test has been used as a stress test to evaluate the drainage system of the eye. However, in order to be clinically applicable,a test must provide reproducible results with consistent measurements. This study was performed to verify the reproducibility of intraocular pressure peaks and fluctuation detected during the water-drinking test in patients with ocular hypertension and open-angle glaucoma.
View Article and Find Full Text PDFPurpose: To verify the reproducibility of the mean, peak, and fluctuation of intraocular pressure (IOP) observed during modified diurnal tension curves (mDTC) performed on ocular hypertensive and primary open-angle glaucoma patients.
Methods: Prospective analysis of 88 eyes from 88 ocular hypertensive and primary open-angle glaucoma patients subjected to 2 consecutive mDTCs (IOP measurements obtained at 8:00 AM, 11:00 AM, 2:00 PM, and 4:00 PM) on 2 consecutive days. Mean IOP was calculated as the average of all IOP measurements obtained during each mDTC.
Objective: To verify the 24-hour repeatability of diurnal intraocular pressure patterns in glaucomatous and ocular hypertensive individuals.
Methods: A prospective analysis of 88 eyes from 88 ocular hypertensive or open-angle glaucoma patients was conducted on diurnal tension curves obtained by the same examiner on two consecutive days. The intraclass correlation coefficient test was used for statistical analysis.
Objective: To investigate the correlation between central corneal thickness and outflow facility assessed by intraocular pressure peak and fluctuation during the water drinking test.
Methods: Fifty-five newly diagnosed primary open-angle glaucoma patients submitted to central corneal thickness measurements and water drinking test were enrolled in this retrospective study.;.
J Ocul Pharmacol Ther
October 2009
Introduction And Purpose: Bimatoprost and the fixed combination of latanoprost with timolol maleate are 2 medications widely used to treat glaucoma and ocular hypertension (OHT). The aim of the study is to compare the efficacy of these 2 drugs in reducing intraocular pressure (IOP) after 8 weeks of treatment in patients with primary open angle glaucoma (POAG) or OHT.
Methods: In this randomized, open-label trial, 44 patients with POAG or OHT were allocated to receive either bimatoprost (1 drop QD) or latanoprost/timolol (1 drop QD).