Clinical trials: Visual Quality
Short-Term Renal-Hematologic Safety, Contrast-Enhanced MRI and FDG-PET/CT
Comparative Evaluation of Contrast-Enhanced MRI and FDG-PET/CT in Spinal Pathology: Image Quality and Short-Term Renal-Hematologic Safety
This prospective comparative observational study evaluates image quality characteristics and short-term physiological effects associated with contrast-enhanced magnetic resonance imaging (MRI) and fluorodeoxyglucose positron…
- Conditions
- Short-Term Renal-Hematologic Safety, Contrast-Enhanced MRI and FDG-PET/CT, Spinal Pathology
- Trial name
- NCT07640386
- Where
- Egypt
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Cairo University
Cataract
Patient Perception of Visual Quality and Function
The purpose of this study is to evaluate the visual quality and function of pseudophakic patients.
- Trial name
- NCT02146599
- Testing
- Administration of patient self-assessment
- Where
- United States
- Volunteers
- 301 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Irreversible Pulpitis
Post Operative Pain and Oral Health Related Quality of Life Following Pulpotomy VS Extraction of Permanent First Molar
The goal of this clinical trial is to compare between post operative pain and oral health related quality of life in participants receiving two treatments for first permanent mandibular molars with poor prognosis.
- Trial name
- NCT06420583
- Testing
- MTA pulpotomy, Extraction
- Where
- Egypt
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Cairo University
Parkinson Disease
Interactive POWER Rehabilitation System on Rehabilitation Training for Patients With Parkinson's Disease
In the previous studies, progressive resistance training (PRT) has significantly improved the muscle strength and disease severity of Parkinson's disease.
- Trial name
- NCT05046236
- Testing
- Interactive POWER rehabilitation, Conventical physical training
- Where
- 2 sites in Taiwan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Taipei Veterans General Hospital, Taiwan
Individuals With Eye Refraction Defects
The Effect of Eye Exercises in Individuals With Eye Refractive Defects
According to the World Health Organization's statement published in 2014, 43% of visual impairment is overhauled by uncorrected refractive errors.
- Trial name
- NCT05999552
- Testing
- Eye exercises
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Hacettepe University
Refractive Surgery, Visual Quality
Factors Influencing Nocturnal Symptoms After Refractive Surgery.
By comparing the parameters of the two groups of patients with glare at night after refractive surgery and those without glare at night, the influence of preoperative related parameters on postoperative glare was analyzed.
- Trial name
- NCT05658718
- Testing
- refractive surgery
- Where
- China
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Nanchang University
Hypotension,Controlled
Correlation Analysis of the Effects of Management Pressure Goals and Control Volume Goals in Patients in Spinal Surgery
The investigators study 160 patients undergoing spinal surgery.Participants will be randomly divided into study group and control group.The study group will receive controlled hypotension by nitroglycerin and be divided into 3…
- Trial name
- NCT03917004
- Testing
- Nitroglycerin
- Where
- China
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Liang Bing
Preterm Birth, Visual Impairment
Eye and Growth in Adolescents Born Moderate-to-late Preterm
During recent years, the interest in studying the risks of being born moderate-to-late preterm (MLP), defined as birth between gestational week 32 to 36, has increased.
- Conditions
- Preterm Birth, Visual Impairment, Eye Abnormalities
- Trial name
- NCT04190147
- Testing
- Structural, functional and metabolic eye examinations
- Where
- Sweden
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Vastra Gotaland Region
Suture Materials, Wound Healing
Patient-Reported Outcomes of Four Intraoral Suture Materials
When patients undergo minor oral surgery, dentists use various types of stitches (sutures) to help the gums heal. These stitches can be made of different materials, and some might feel more comfortable, cause less pain, or…
- Conditions
- Suture Materials, Wound Healing, Patient Comfort, Oral Health-Related Quality of Life
- Trial name
- NCT07569237
- Testing
- Silk Suture (Braided, Non-absorbable), Polyglactin 910 Suture (Braided, Absorbable), Polyamide Suture (Monofilament, Non-absorbable)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Jordan
Glaucoma
Assessment of Ability Related to Vision
To determine the clinical usefulness of a refined third-generation instrument - The Assessment of Ability Related to Vision (AARV) in establishing the amount of disability, charting the detrimental effects of progressive disease…
- Trial name
- AARV (NCT01027312)
- Volunteers
- 121 people, healthy volunteers welcome
- Sponsor
- Wills Eye
Healthy
Working Memory Quality of Attentional Templates
In this line of research, the researchers are examining a basic science question regarding the working memory representations underlying visual search using a positive template (looking for a target) or a negative template…
- Trial name
- NCT05863715
- Testing
- Visual Search Cue Type
- Where
- United States
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Lehigh University
Dyspnea, Sleep Quality
Visual and Auditory Stimulation in Intensive Care Patients
This study is a randomized controlled experimental clinical trial designed to investigate the effects of visual and auditory stimulation on dyspnea severity, sleep quality, and anxiety levels in patients receiving noninvasive…
- Conditions
- Dyspnea, Sleep Quality, Anxiety, Intensive Care Patients
- Trial name
- NCT07895030
- Testing
- The Northern Lights and White Noise
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- University of Yalova
Psychophysiology, Visually Impaired Persons
Study of Effectiveness of Audio Guided Deep Breathing on Improving the Quality of Life of Physically Disabled Group
Diaphragmatic breathing brings different advantages to improve physical and mental health but it could be difficult for the physically disabled group to follow the practice by themselves especially those with vision impairment.
- Conditions
- Psychophysiology, Visually Impaired Persons, Physiological Phenomena, Psychological Stress
- Trial name
- NCT05396027
- Testing
- Audio-guided deep breathing
- Where
- Malaysia
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Universiti Tunku Abdul Rahman
Parkinson Disease
Study on the Visual Condition in Parkinson's Disease
Non motor symptoms and signs in Parkinson's disease (PD) also include a series of visual deficits; deepening these aspects could be useful for a better management of symptoms, to standardize a specific protocol for the issues…
- Trial name
- NCT03743467
- Testing
- Clinical evaluation of vision and eye tests
- Where
- 2 sites in Italy
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Neuromed IRCCS
Music Therapy, Music Therapy for Pain and Sedation
Effect of Music Therapy on the Quality of Recovery
Background: The use of music in operations is increasing due to its painless, safe, inexpensive, and the potential to improve patient outcomes.
- Conditions
- Music Therapy, Music Therapy for Pain and Sedation, Postoperative Period, Perioperative Period
- Trial name
- MTonR (NCT06874972)
- Testing
- Music played
- Where
- Bhutan
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Ministry of Health, Bhutan
Keratoconus
A Clinical Study of Keratoconus in Asian Patients and Assessment of Different Topographic Patterns of Keratoconus in Asian Patients
A clinical study of keratoconus in Asian Patients and assessment of different topographic patterns of keratoconus in Asian patients
- Trial name
- NCT00347074
- Where
- Singapore
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Modulation Transfer Function, Visual Acuity
MTF Image Modifications
Human visual acuity and contrast sensitivity are highly dependent on various different parameters. Each should be optimized for perfect visual performance.
- Conditions
- Modulation Transfer Function, Visual Acuity, Contrast Sensitivity
- Trial name
- NCT01926704
- Where
- Austria
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Myopia-Night Blindness
Evaluation of a Night Spectacle Correction Concerning an Improvement of Mesopic Vision Quality
Reduced quality of vision and glare in twilight or night are frequently mentioned complaints within the optometric examination. A reason for these problems could be a myopic refractive shift in dark light conditions, commonly…
- Trial name
- NCT02965534
- Testing
- Spectacle/Glasses
- Where
- 3 sites in Germany
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Applied Sciences Jena
Quality Control, Validation Study
Comparison of Four Methods for Entering the Gap Position of Landolt Cs
The aim of this study is to investigate and compare the validity of four different input methods for Landolt Cs, i.e. the proportion of correct gap positions in relation to the total number of performances.
- Trial name
- LC_Entry (NCT04299659)
- Testing
- Landolt C entry method
- Where
- Germany
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Aalen University
Glaucoma
Assessment of Advanced Glaucomatous Visual Field Loss and Its Impact on Visual Exploration, Activities of Daily Living (ADL) and Quality of Life (QoL)
The purpose of this explorative study, targeting subjects with advanced binocular glaucomatous visual field loss, is: (i) to identify the perimetric / psychophysical method, that is most closely correlated with an individually…
- Trial name
- GlaucomaEXPLOR (NCT01372319)
- Where
- Germany
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University Hospital Tuebingen