Purpose: To study change in choroidal thickness (CT) after water drinking test (WDT), comparing angle closure (AC) to open angle (OA) eyes.
Methods: Before and 30 minutes after drinking 1 L of water, 88 glaucoma subjects underwent measurements of CT by spectral domain-optical coherence tomography, IOP, blood pressure (BP), axial length (AL), and anterior chamber depth (ACD).
Results: Baseline CT was significantly greater in AC than in OA eyes (P = 0.002). After WDT, BP, IOP, and AL increased significantly (all P ≤ 0.0001). Mean CT increased significantly in the AC group (5.6 μm, P = 0.04, n = 40) and among 80 subjects whose IOP rose > 2 mm Hg (responders; 3.2 μm, P = 0.048), but not in the OA group or among all subjects (2.5 μm increase overall, <1% of baseline CT, P = 0.10). ACD decreased in AC (-18 μm, P = 0.07), but not in OA eyes (+3 μm, P = 0.74). AC eyes had a significantly greater IOP increase after WDT than OA eyes (P = 0.002, multivariate regression). Among responders, CT increased more in those with larger diastolic perfusion pressure increase and in AC compared to OA eyes (P = 0.04 and P = 0.053, respectively, multivariate regression).
Conclusions: A significant increase in CT and a decrease in ACD after WDT were observed in AC but not in OA eyes, and IOP increased significantly more in AC than in OA eyes, suggesting that the dynamic behavior of the choroid may play a role in the AC process. IOP increase after the WDT was not fully explained by CT increase.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6715336 | PMC |
| http://dx.doi.org/10.1167/iovs.12-10224 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Analysis of choroidal thickness, macular thickness, peripapillary retinal nerve fiber layer thickness, and macular vascular density in children with unilateral amblyopia using swept-source optical coherence tomography and their changes following occlusion therapy.
Taiwan J Ophthalmol
June 2024
Department of Vitreo-Retina, Sankara Eye Hospital, Shimoga, Karnataka, India.
Purpose: The purpose of this study was to analyze choroidal thickness (CT), along with macular thickness (MT), peripapillary retinal nerve fiber layer thickness (RNFLT), and macular vascular density (MVD) using swept-source optical coherence tomography (SS-OCT) in children with unilateral amblyopia, and compare the same with normal fellow eyes and normal eyes of normal children before and following occlusion therapy.
Materials And Methods: This was a prospective, longitudinal study of 60 children (4-18 years); 30 children had unilateral amblyopia and remaining 30 were normal. Group 1 consisted of 30 amblyopic eyes of children with unilateral amblyopia; Group 2 consisted of 30 fellow normal eyes of Group 1; Group 3 consisted of normal eyes of normal children.
Optic Nerve Head Changes in Acute Central Serous Chorioretinopathy: Implications for Glaucoma Risk.
Photodiagnosis Photodyn Ther
January 2025
Istanbul Medeniyet University, Faculty of Medicine, Department of Ophthalmology, Istanbul, Turkey. Electronic address:
Objective: Imaging techniques have demonstrated changes in the choroid and retina in acute central serous chorioretinopathy (CSCR), but the effects on the optic nerve head (ONH) remain unclear. This study investigates ONH structural changes in acute CSCR using enhanced deep imaging optic coherence tomography (EDI-OCT).
Methods: A prospective cohort study included 51 acute CSCR patients and 51 healthy controls aged 18-65 years.
Subthreshold nanosecond laser therapy for chronic central serous chorioretinopathy: A prospective study.
J Fr Ophtalmol
January 2025
Department of Ophthalmology, Saarland University Medical Center UKS, Homburg/Saar, Germany.
Purpose: To investigate the morphologic and functional outcomes of nanosecond subthreshold (ST) laser treatment for patients with chronic central serous chorioretinopathy (CSC).
Methods: In this prospective study, 44 patients were treated with the ST nanosecond laser with a follow-up period of 12 months. All target variables were measured at 1, 3, 6 and 12 months after the first laser treatment.
Black posterior vitreous detachment: A 10-year historical cohort of pigmented uveal tumors.
Heliyon
January 2025
Faculty of Medical and Health Sciences, Tel Aviv University, Israel.
Objective: Pigmentary posterior vitreous detachment (PVD), referred to as "black PVD," is a rare entity describing PVD along with pigment dispersion in the vitreous. There are a few case reports describing pigmentary PVD, yet the association between pigmentary PVD and uveal and optic disc tumors was not described before. The aim of this study was to report the clinical features of patients with pigmentary PVD associated with these tumors.
View Article and Find Full Text PDFEvaluating Choroidal Vascular Changes in Young Adults With High Myopia Utilizing Swept source optical coherence tomography angiography.
Photodiagnosis Photodyn Ther
January 2025
Southwest Hospital/Southwest Eye Hospital, Army Medical University, Chongqing 400038, China.; Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China; Jinfeng Laboratory, Chongqing, China. Electronic address:
Purpose: Utilizing Swept source optical coherence tomography angiography (SS-OCTA) investigates the changes in the vascular characteristics of the choriocapillaris and larger vascular layers, including Sattler's and Haller's layers, in the macular region of young myopia patients, in order to to Enhance our comprehension of the underlying mechanisms of the pathogenesis of myopia.
Methods: A retrospective analysis was performed on 103 young adults (154 eyes) that underwent SS-OCTA. Axial lengths (AL) were measured, 64 eyes with AL < 26.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!