Clinical trials: Pupil, open to volunteers
Autism Spectrum Disorder
Effectiveness of the Autism Pupil Screen (APS) Detect Pupillometer for Identifying Autism Spectrum Disorder (ASD) in Routine Healthcare
Autism spectrum disorder (ASD) is a developmental condition that can affect communication, social interaction, and behavior. Identifying ASD early helps children and families access support services sooner.
- Trial name
- APS001 (NCT07903675)
- Testing
- Autism Pupil Screen (APS) Detect PLR Assessment #1, Modified Checklist for Autism in Toddlers, Revised with Follow-up (M-CHAT/R-F), Social Responsiveness Scale, Second Edition (SRS-2)
- Where
- 4 sites in United States
- Volunteers
- 330 people, healthy volunteers welcome
- Sponsor
- Schweitzer Engineering Laboratories
Artifical Intelligence, Cataract
Development of a Mobile Terminal-Based Intelligent Detection System for Multiple Anterior Segment Diseases of the Eye
This is a multi-center, cross-sectional study evaluating a smartphone-based artificial intelligence (AI) system for anterior segment eye disease screening.
- Conditions
- Artifical Intelligence, Cataract, Pterygium, Keratopathy
- Trial name
- LENS (NCT07634913)
- Testing
- Smartphone-based on-device artificial intelligence system for anterior segment eye disease screening
- Where
- China
- Volunteers
- 3,000 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Caffeine, Alcohol
Investigating the Effect of Caffeine and Alcohol on Pupil Dynamics
The goal of this study is to understand how caffeine and alcohol affect the ocular and physiological systems, especially how the pupil (the aperture in the colored part of the eye) responds to light.
- Conditions
- Caffeine, Alcohol, Pupillary Response, Eye Movements
- Trial name
- PAC (NCT07625358)
- Testing
- Caffeine administration, Alcohol (Ethanol)
- Where
- Singapore
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- National University of Singapore
Pseudoexfoliation Syndrome
The Correlation Between Pupil Size and Retinal Nerve Fibers Changes in Pseudoexfoliation Syndrome.
To study the possible correlation between pupillary diameter before and after dilation with intraocular pressure, lens stability and glaucomatous damage (represented by optic disc changes using cup to disc ratio and OCT changes…
- Trial name
- NCT06588816
- Testing
- optical coherence tomography
- Volunteers
- 33 people
- Sponsor
- Assiut University
Normal Physiology
Impact of Sex and Age on Non-visual Light Input That Affects Sleep and Circadian Rhythms
The goal of this clinical trial is to learn how the pupil responds to different light stimuli and how that relates to sleep and daily rhythms in healthy people of different ages.
- Trial name
- NCT05829044
- Testing
- Pupillometry, Light box exposure
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Myopia, Visual Diet
Longitudinal Measurements of Visual Diet in Children
Myopia is a leading cause of visual impairment worldwide, with prevalence rising rapidly among children. Growing evidence suggests that environmental and behavioral factors play a dominant role in ocular growth; however, current…
- Conditions
- Myopia, Visual Diet, Pupil, Viewing Distance
- Trial name
- VEET (NCT07642999)
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- State University of New York College of Optometry
Astigmatism, Cornea
Accuracy of Corneal Astigmatism in Different Region Modes
To analyze the difference between measured total corneal astigmatism and actual corneal astigmatism under different region modes and optimize the region setting.
- Trial name
- NCT03299530
- Testing
- patients with corneal astigmatism
- Where
- China
- Volunteers
- 70 people
- Sponsor
- Wenzhou Medical University
Hypoxic Ischemic Encephalopathy (HIE)
Severity of Hypoxic Ischemic Encephalopathy and Neurological Pupil Index in Neonates
The goal of this observational study is to learn if the reactivity of a newborn's eye to light (measured as an index, using a new device -pupillometer) reflect the health of their brain recovering from disruption of blood/oxygen…
- Trial name
- SHINE (NCT07024771)
- Testing
- Automated Pupillometer
- Where
- Canada
- Volunteers
- 25 people
- Sponsor
- University of Calgary
Benign Prostatic Hyperplasia, Silodosin
Pupil Size and Choroidal Thickness Changes With Tamsulosin vs. Silodosin in Benign Prostatic Hyperplasia Patients
Benign prostatic hyperplasia (BPH) is a common disease in men and is treated with alpha-blockers, particularly tamsulosin and silodosin.
- Conditions
- Benign Prostatic Hyperplasia, Silodosin, Tamsulosin, Choroid
- Trial name
- NCT07743060
- Testing
- tamsulosin 0.4mg, Silodosin 8 mg
- Volunteers
- 40 people
- Sponsor
- Mohsen Pourazizi
Circadian Rhythm, Pupillometry
Relationships Among Pupil Responses to Light, Circadian Rhythms, and Sleep
The investigators are studying relationships among eye pathology, pupil responses to light, sleep, circadian rhythms, and hormones in healthy individuals and those with various medical disorders or illnesses.
- Conditions
- Circadian Rhythm, Pupillometry, Sleep
- Trial name
- SCOPE (NCT07753889)
- Testing
- Ocular light exposure from portable light box
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Elizabeth B Klerman MD PhD
Preventative Health, Well-Being, Psychological
Reducing School Dropout and Enhancing Pupils' Sense of Belonging and Participation Through Co-created Music-based Activities
RESONATE is a cluster-randomised crossover trial focusing on reducing school dropout rates and fostering belonging through co-created music-based activites, by combining music therapy (MT), psychology, and social sciences.
- Conditions
- Preventative Health, Well-Being, Psychological, Salutogenesis, Mastery
- Trial name
- RESONATE (NCT07632391)
- Testing
- Group music activity, co-created by pupils and music therapists, 1x/week over 1 school semester, Usual school schedule over 1 school semester
- Where
- 16 sites in Norway
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- NORCE Norwegian Research Centre AS
Sensorineural Hearing Loss
Cochlear Implanted Listening Effort and Hearing Attention
Cochlear implant users perceive mainly sound amplitude modulation cues. Processing of these amplitude modulations can be subject to interferences, so that the perception of a modulation in a target sound can be impaired by a…
- Trial name
- EffICAtt (NCT04733950)
- Testing
- Forced choice psychoacoustic task for the evaluation of modulation detection performance and selective auditory attention. (for both arm), Measurement of the pupil diameter for the evaluation of listening effort during speech perception
- Where
- France
- Volunteers
- 170 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Mechanical Ventilation, Critical Illness
Effect of Ventilation Mode in the Pupillary Light Reflex: A Crossover Study
The goal of this clinical trial is to explore whether different modes of mechanical ventilation affect pupillary constriction velocities in critically ill patients without brain injury.
- Trial name
- EYE-BREATH (NCT07082569)
- Testing
- Volume Control Ventilation, Pressure Control Ventilation, Pressure-Regulated Volume Control (PRVC)
- Where
- Greece
- Volunteers
- 36 people
- Sponsor
- Evangelismos Hospital
Pupillary Constriction, Accomodation
Adjusted Study Protocol: Within-Subject Paired-Eye Design Comparing Pilocarpine 0.1%, Phentolamine 0.75%, and Combination Therapy for Cyclopentolate Reversal in Children
The study aims at reversing pupillary dilatation. and cycloplegia in children undergoing cycloplegic refraction for eyeglasses prescription and ocular examination.
- Trial name
- NCT07012512
- Testing
- Use of phentolamine eye drops to reverse cycloplegia, Pilocarpine 0.1%, Combination of pilocarpine 0.1% and phentolamine 0.75%
- Volunteers
- 60 people
- Sponsor
- Mansoura University
Literacy
Promoting Pupils' Physical Literacy
This pilot study aims to test the feasibility and acceptability of a previously developed and tested physical literacy (PL) intervention.
- Trial name
- 3PL (NCT05822024)
- Testing
- Promoting Pupils' Physical Literacy Intervention
- Where
- 3 sites in Denmark
- Volunteers
- 336 people, healthy volunteers welcome
- Sponsor
- Center for Clinical Research and Prevention
Paresis
Pupil-Indexed Noninvasive Neuromodulation
Vagus nerve stimulation (VNS) is thought to activate neural pathways that release chemicals which promote plasticity and learning.
- Trial name
- NCT06282406
- Testing
- Transcutaneous Electrical Stimulation
- Where
- United States
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development