Clinical trials: Eye Change
Vision Disorders
Modification in Cortical Activation in Pseudophakic Patients With Visual Difficulties After a Multifocal Implantation
This study will highlight differences in cortical activation between asymptomatic and symptomatic patients.
- Trial name
- PlainteIMF (NCT02529098)
- Testing
- fMRI
- Where
- France
- Volunteers
- healthy volunteers welcome
- Sponsor
- University Hospital, Toulouse
Pediatric Disorder, Vitamin D Deficiency
Retinal Changes in Vitamin D Deficiency
Retinal tissue parameters of pediatric patients with vitamin D deficiency will be evaluated in this prospective case-control study. The patients will be divided into 2 groups according to the vitamin D level.
- Conditions
- Pediatric Disorder, Vitamin D Deficiency, Retinal Disease, Choroidal Disease
- Trial name
- VDD (NCT04891211)
- Testing
- Vitamin D deficiency
- Where
- Turkey (Türkiye)
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Adiyaman University
User Experience With Virtual Assistants in Service Settings
Effects of Virtual Assistant Features on User Experience in Service Settings
This study examines how the characteristics and performance of virtual assistants influence user experience in service settings.
- Trial name
- AVir4Services (NCT07666295)
- Testing
- High Anthropomorphism, Low Anthropomorphism, Accurate Virtual Assistant Response
- Where
- Spain
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- University of Malaga
Tuberculosis; Uveitis (Manifestation), Anti-Tuberculous Drug Reaction
Proportion of Clinical Improvement & Type 1 Interferon (IFN) Score Changes in Idiopathic Uveitis Patients With Interferon Gamma Release Assay (IGRA) Positive
The aim of this study is to determine the proportion of clinical improvement, the score changing of type 1 interferon selected gene expression, and analysis of transcriptomics profiling in patients with idiopathic uveitis…
- Conditions
- Tuberculosis; Uveitis (Manifestation), Anti-Tuberculous Drug Reaction, Tuberculous Uveitis
- Trial name
- NCT04088019
- Testing
- Fixed drug combination (FDC) of ATT and Oral steroid
- Where
- Indonesia
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Fakultas Kedokteran Universitas Indonesia
Myopia, Myopia; Refractive Error
Peripheral Relative Refractive Power of Orthokeratology Lenses
Orthokeratology (OK) has been demonstrated to be an effective intervention for slowing axial elongation in children with myopia.
- Trial name
- NCT07294404
- Testing
- orthokeratology
- Where
- China
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Healthy
Regulation of Optic Nerve Head Blood Flow During Combined Changes in Intraocular Pressure and Arterial Blood Pressure
Autoregulation is the ability of a vascular bed to maintain blood flow despite changes in perfusion pressure. The existence of an effective autoregulation in the optic nerve head (ONH) circulation has been shown in animals and…
- Trial name
- NCT00915226
- Testing
- Suction cup application, Squatting
- Where
- Austria
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Glaucoma,Primary Open-Angle ,Primary Angle Closure
Comparison of Optical Coherence Tomography Angiography Microvascular Changes in Primary Open Angle and Primary Angle Closure Glaucoma
This work aims to study the peripapillary and macular microvascular changes in primary open angle and primary angle closure glaucoma using Optical Coherence Tomography Angiography (OCTA).
- Trial name
- NCT06000176
- Testing
- Optical coherence tomography angiography
- Where
- Egypt
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Omar Said
Presbyopia
Safety and Effectiveness of the AcuFocus Corneal Inlay ACI7000PDT in Presbyopes
The purpose of this study is to determine if the AcuFocus Corneal Inlay ACI 7000PDT will provide an effective method of for the correction of presbyopia in patients who have normal distance vision but need correction such as…
- Trial name
- NCT01352442
- Testing
- AcuFocus Corneal Inlay ACI 7000PDT
- Where
- 11 sites in Australia, Austria and 8 more
- Volunteers
- 151 people, healthy volunteers welcome
- Sponsor
- AcuFocus, Inc.
Postoperative Cognitive Dysfunction
Ketamine and Changes of the Short Portable Mental Status Questionnaire
Cognitive changes are related to aging, affecting the performance of older patients in the solution of problems and the execution of tasks.
- Trial name
- SPMSQ-E (NCT02049411)
- Testing
- Ketamine, physiological solution
- Where
- Mexico
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Instituto Mexicano del Seguro Social
Glaucoma
Cyclophotocoagulation in Glaucoma
Transscleral cyclophotocoagulation of the ciliary body is an effective technique to reduce intraocular pressure in case of glaucoma.
- Trial name
- NCT02875158
- Testing
- Cyclophotocoagulation protocol, Conventional cyclophotocoagulation, Modified cyclophotocoagulation
- Where
- Canada
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- CHU de Quebec-Universite Laval
Open Angle Glaucoma
Different Glaucoma Treatments Effect on Intraocular Pressure Fluctuation With Postural Change in Eyes With Open-angle Glaucoma
The purpose of this study is to investigate the effect of trabeculectomy, glaucoma drainage devices, cyclophotocoagulation and ocular hypotensive eye-drops on IOP elevation with postural change from the sitting to supine…
- Trial name
- NCT02868502
- Testing
- Goldmann tonometer, Pneumatonometer, Tonopen XL
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Meir Medical Center
Silicone Tamponade
The Effect of Postural Changes on Intraocular Pressure in Silicone Oil-filled Eyes
The study was conducted to investigate how postural changes including sitting, supine, and LDP(lateral decubitus position) affect the IOP(intraocular pressure) of SO(silicone oil-filled eyes.
- Trial name
- NCT01992510
- Where
- South Korea
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Kyungpook National University Hospital
Cataract
Evaluation of the EpiGlare Tester for the Measurement of Glare-Induced Changes in BSCVA in Subjects With and Without Cataracts
The EpiGlare Tester will identify visual disability resulting from the glare experienced by subjects with cataracts in the glare-induced change in best spectacle corrected visual acuity (BSCVA).
- Trial name
- NCT04739397
- Testing
- Glare Testing
- Where
- United States
- Volunteers
- 89 people, healthy volunteers welcome
- Sponsor
- Epico, LLC
Cataract, Glaucoma
IOP Changes Associated With SICS and Phako
Prospective randomized trial in patients requiring cataract surgery in which IOP, angle anatomy and other demographic and clinical data are compared. Subjects randomized to both MSICS and phakoemulsification
- Trial name
- NCT02642211
- Testing
- cataract surgery
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Robin, Alan L., M.D.
Myopia, High, With Cataract and Anterior Capsule Polished
The Influences Of Anterior Capsule Polishing On Anterior Capsular Changes and Intraocular Lenses Stability of Super High Myopic Eyes
A prospective study included 20 patients with super high myopia who underwent bilateral uneventful cataract. 360°anterior capsule polishing was performed with double-ended capsule polisher randomly in one eye, and the opposite…
- Trial name
- NCT03142269
- Testing
- 360°anterior capsule polishing
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- yin ying zhao
Glaucoma
Functional Brain Changes of Primary Open-angle Glaucoma Patients
Structural and functional brain changes of primary open-angle glaucoma patient will be examined with fMRI. POAG patients and control group were examined with 3.0T magnetic resonance imaging.
- Trial name
- NCT02570867
- Where
- China
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Qing Zhou
Cataract
Clinical Evaluation of Modified 2.2mm Microincision Phacoemulsification for Age-related Cataract
This study is a single-center, parallel-group, randomized controlled trial with the following objectives: to compare the incidence of post-operative descemet membrane detachment (DMD) in phacoemulsification surgery between…
- Trial name
- NCT04014699
- Testing
- modified 2.2mm microincision, conventional 2.2mm microincision
- Where
- China
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
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
Vision Disorders, Eye; Movement Disorder (Binocular)
Characteristics of the Vergence Responses of Binocularly Normal Subjects After a Vision Therapy Protocol
A vision therapy protocol for vergence ability is mentioned. The purpose of this study is to evaluate objectively the change in the vergence responses of binocular and accommodative normal subjects after performing a classic…
- Conditions
- Vision Disorders, Eye; Movement Disorder (Binocular), Vision Therapy, Binocular Vision Disorder
- Trial name
- NCT05208658
- Testing
- Experimental: Classical Vision Therapy Treatment, Control: Eye Movement Therapy Treatment
- Where
- Spain
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Universitat Politècnica de Catalunya
High Myopia
Development and Pathological Changes of High Myopia Among Children and Adolescents in China
The study aims to observe the relationship between the changes of ocular structure parameters and pathological changes among children and adolescents with high myopia.
- Trial name
- NCT03533647
- Testing
- Observational
- Where
- China
- Volunteers
- 1,400 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University