Clinical trials: Choroidal Thickness
Uveitis
Objective Choroidal Thickness Measurements in Uveitis
Optical Coherence Tomography (OCT) machines are non-contact instruments that can provide micrometer scale imaging of biological tissue.
- Trial name
- NCT03889860
- Where
- Poland
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Wroclaw Medical University
Age Related Macular Degeneration (AMD)
A 16 Week Evaluation of the Novartis Health Management Tool (HMT) in Age Related Macular Degeneration (AMD)
This is a prospective pilot study to evaluate the usability and applicability of a self monitoring test of visual function with the handheld Health Management Tool (HMT) to remotely monitor neovascular Age Related Macular…
- Trial name
- NCT01542866
- Testing
- Health Management Tool (HMT)
- Where
- 23 sites in United States
- Volunteers
- 160 people
- Sponsor
- Novartis Pharmaceuticals
Epiretinal Membrane
Choroidal Thickness Vitrectomy
The purpose of this study is to assess the influence of vitrectomy on changes in central choroidea and comparing the results in imaging of the choroidea with two different OCT devices.
- Trial name
- NCT02617147
- Where
- Austria
- Volunteers
- 76 people
- Sponsor
- Medical University of Vienna
Epinephrine Toxicity, Cataract
The Effect of Intracameral Carbachol and Epinephrine on Choroidal Thickness
81 eyes of 81 patients undergoing cataract surgery were included in this prospective interventional study. During cataract surgery, intracameral carbachol was applied to 27 eyes, intracameral epinephrine was administered to 20…
- Conditions
- Epinephrine Toxicity, Cataract, Carbachol Adverse Reaction, Choroid Disease
- Trial name
- NCT05225597
- Testing
- Intracameral administration of epinephrine and carbachol during cataract surgery
- Where
- Turkey (Türkiye)
- Volunteers
- 81 people
- Sponsor
- Ordu University
Myopia
The Influence of Atropine on Choroidal Thickness
Atropine eye drops are increasingly prescribed for the management of progressive myopia or short-sightedness. A previous study suggested that the back of the eye or choroid may be a part of the mechanism by which it induces its…
- Trial name
- NCT03158142
- Testing
- Atropine Sulfate 1% Oph Soln
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- State University of New York College of Optometry
Retinal Vascular
Physiologic Changes of Posterior Ocular Segment During the Menstrual Cycle
Changes of luteinizing hormone (LH), estrogen and progesterone during the menstrual cycle influence the ocular physiology in both anterior and posterior segments.
- Trial name
- NCT04731207
- Testing
- Optovue®
- Where
- Thailand
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Khon Kaen University
Neovascular Age-related Macular Degeneration
A Randomized, Double-masked, Multicenter,Sham-controlled, Safety and Efficacy Study of KH902 in Patients With Wet AMD
This study is designed to prove and confirm the efficacy and safety of multiple injections of human recombinant vascular endothelial growth factor receptor-Fc fusion protein (KH902) in patients with choroidal neovascularization…
- Trial name
- PHOENIX (NCT01436864)
- Testing
- Recombinant Human VEGF Receptor-Fc Fusion Protein
- Where
- 11 sites in China
- Volunteers
- 125 people
- Sponsor
- Chengdu Kanghong Biotech Co., Ltd.
Retinal Vascular
Physiologic Change of Posterior Ocular Segment During Pregnancy
Women's physiology changes markedly during normal pregnancy. The most distinct alterations occur in the hormonal and cardiovascular systems. There is a dramatic increase in both estrogen and progesterone.
- Trial name
- NCT04731415
- Testing
- Optical coherence tomography and optical coherence tomography angiography (Optovue®)
- Where
- Thailand
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- Khon Kaen University
Eye Disease
The Effect of Resveratrol Based Nutritional Supplement on Choroidal Thickness
Choroidal thickness represents blood-flowing of eyes. The investigators detect the choroidal thickness of the young participant using SD-OCT to see the effect of Resveratrol Based Nutritional Supplement on Choroidal Thickness.
- Trial name
- NCT02321189
- Testing
- LONGEVINEX
- Where
- China
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Huazhong University of Science and Technology
Choroidal Thickness
Choroidal Thickness Measurements During Central Serous Chorioretinopathy (CSCR) Treatment
The purpose of this study is to determine changes in choroidal thickness in patients with Central Serous Chorioretinopathy (CSCR) during the first 3 months after initial diagnosis via…
- Trial name
- NCT01610804
- Where
- Germany
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- University Hospital Regensburg
Eye Diseases
Manual Versus Automated Choroidal Thickness Measurements Using Swept-source Anterior Segment OCT
The choroid, which is located between the retina and the sclera, is a connective tissue layer that is densely packed with blood vessels and is responsible for supplying oxygen and nutrients to the retina's periphery.
- Trial name
- NCT05211089
- Testing
- Optical Coherence Tomography imaging of choroid
- Where
- Egypt
- Volunteers
- 80 people
- Sponsor
- Assiut University
Choroid
Effects of Acute Sugar Intake on Choroidal Thickness
This study aims to bridge that gap by investigating how acute sugar intake influences choroidal thickness.
- Trial name
- NCT07376005
- Testing
- Oral glucose
- Where
- United States
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- Southern College of Optometry
Myopia
Dietary Supplement for Myopia Control
The purpose of this clinical trial is to investigate the changes in choroidal thickness and vasculature in myopic children following oral supplementation.
- Trial name
- NCT07406906
- Testing
- Oral dietary supplement provided in a capsule format (3 active capsules/ per day)
- Where
- Hong Kong
- Volunteers
- 156 people
- Sponsor
- The Hong Kong Polytechnic University
Retinopathy of Prematurity, Myopia
Prematurity and Ophthalmological Changes
Ophthalmological differences in school-aged children with and without a history of retinopathy of prematurity
- Trial name
- NCT06452524
- Testing
- axial length (AU) and anterior chamber depth (ACD), optical coherence tomography (OCT)
- Where
- Turkey (Türkiye)
- Volunteers
- 211 people, healthy volunteers welcome
- Sponsor
- Ankara City Hospital Bilkent
Myopia
Study Comparing Eye Growth Over Time in Children Using Two Myopia Control Lenses
The goal of this clinical trial is to investigate the short-term changes in the eye structure while wearing two types of lenslet-based myopia control lenses over a period of 6 months in children aged 6 to 13 years with myopia.
- Trial name
- NCT07253064
- Testing
- MCL 1, MCL 2
- Where
- Singapore
- Volunteers
- 20 people
- Sponsor
- Essilor International
High Myopia, Choroid
Effect of Caffeine on Ocular Circulation in High Myopes
To investigate the effect of caffeine on ocular circulation by using Optical Coherence Tomography and Optical Coherence Tomography Angiography.
- Trial name
- NCT03294967
- Testing
- Caffeine, Vitamin E
- Where
- Hong Kong
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Glaucoma, Open-Angle
Choroidal Thickness and Its Correlations With Ocular Parameters in Primary Open-angle Glaucoma
Glaucoma is one of the leading causes of blindness worldwide that is a chronic public health problem. Unfortunately, glaucoma can be diagnosed when the disease reaches a certain level in today's conditions.
- Trial name
- NCT03966560
- Testing
- Brimonidine Tartrate, Dorzolamide (as Dorzolamide Hydrochloride) 20 Mg/mL and Timolol (as Timolol Maleate) 5 Mg/mL Eye Drops, Brinzolamide/Timolol 10 MG/1 ML-5 MG/1 ML Ophthalmic Suspension
- Volunteers
- 96 people, healthy volunteers welcome
- Sponsor
- Afyon Kocatepe University Hospital
Posterior Capsule Opacification, Retinal Degeneration
Changes of Macular Pigment and Parameters of Eyes After YAG Laser Treatment in Cases With Capsule Opacification
It has been hypothesized that potential effects of laser Nd: YAG laser posterior capsulotomy may affect macular pigment as well as choroidal thickness, macular thickness and anterior chamber parameters, so it was aimed to…
- Conditions
- Posterior Capsule Opacification, Retinal Degeneration, Retinal Detachment, Anterior Chamber Angle Congestion
- Trial name
- NCT03321253
- Testing
- Nd: YAG laser posterior capsulotomy
- Volunteers
- 38 people
- Sponsor
- Afyon Kocatepe University Hospital
Myopia, Myopia Progression
Effect of Diffusion Optics Technology (DOT) Spectacle Lenses on Choroidal Thickness
The objective of the study is to measure the effect of Diffusion Optics Technology (DOT) spectacle lenses on the choroidal thickness and choroidal vascularity index compared to control lenses.
- Conditions
- Myopia, Myopia Progression, Juvenile Myopia
- Trial name
- ASH-2 (NCT05617794)
- Testing
- Diffusion Optics Technology (DOT) Pattern Spectacle Lens, Control Spectacle Lens
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Induced Defocus to the Retina
Defocus Induced Changes on Choroidal Thickness
The goals of this study are to assess the short-term (10-60 minutes) effects of different magnitudes of myopic and hyperopic optical defocus on the transient thickness of the choroid in children and adults, as well as to assess…
- Trial name
- NCT03954886
- Testing
- Plus powered optical lens
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- University of Houston