Clinical trials: Pupil
Pain
Stimulation and Validation of the Pupillary Dilation for the Detection of Pain in Analgosedated Patients Under Mechanically Ventilation in Intensive Care Unit
This project has 2 phases. Phase 1: diagnostic test study, to evaluate the efficacy of the variation of pupillary size (PDR) to detect pain in ICU patients regarding to Behavioural Pain Scale (BPS) and ESCID (Conductual Scale…
- Trial name
- NCT04078113
- Testing
- Pupillometer
- Where
- Spain
- Volunteers
- 82 people
- Sponsor
- Basque Health Service
Intraocular Pressure
The Effect of Brimonidine
This study will evaluate whether pre-treating patients with Brimonidine 0.2% before and/or after dilating the pupils will help to control the changes in intraocular pressure often seen when using dilating drops.
- Trial name
- NCT03959176
- Testing
- Brimonidine, Tropicamide, Phenylephrine Ophthalmic Product
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Pupillary Functions, Abnormal
Effects of Volatile and Intravenous Anesthetics on Pupillary Function
To compare of effects of volatile and intravenous anesthetics on pupillary function during general anesthesia in children
- Trial name
- NCT03987529
- Testing
- sevoflurane, propofol
- Where
- South Korea
- Volunteers
- 22 people
- Sponsor
- Seoul National University Hospital
Mydriasis, Dilation
Safety and Efficacy of Ophthalmic Phentolamine Mesylate to Reverse Pharmacologically Induced Mydriasis
The objectives of this study are: To evaluate the efficacy of Nyxol (phentolamine mesylate ophthalmic solution 1%) to expedite the reversal of pharmacologic mydriasis To evaluate the safety of Nyxol To evaluate the effect of…
- Trial name
- NCT04024891
- Testing
- Phentolamine Mesylate Ophthalmic Solution 1%
- Where
- 4 sites in United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Opus Genetics, Inc
Premature, Retinopathy of Prematurity
Comfort Level in Premature Infants Undergoing Retinopathy of Prematurity Screening
Retinopathy of prematurity (ROP) screening is a routine yet painful procedure for premature infants, often necessitating pharmacological mydriasis.
- Conditions
- Premature, Retinopathy of Prematurity, Pain
- Trial name
- NCT07016984
- Testing
- standard phototherapy eye patches
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people
- Sponsor
- Istanbul Nisantasi University
Healthy Volunteers, Relative Afferent Pupil Defect
The PUPIL Study - Automated, Quantitative Pupil Assessment Using Binocular OCT
In current, clinical ophthalmology, a range of specialised testing allows comprehensive evaluation of ocular health. These tests have typically evolved over many years to ensure their clinical validity.
- Conditions
- Healthy Volunteers, Relative Afferent Pupil Defect, Pupil Anomaly
- Trial name
- NCT03081468
- Testing
- Binocular OCT prototype, Konan RAPDx
- Where
- United Kingdom
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University College, London
Neurosurgical Intervention
Study of the Link Between the Slope of the Photomotor Reflex and the Depth of Anesthesia: "ILLUMINANS" Study
Pupillary diameter monitoring is currently used routinely for assessment of the nociception / antinociception balance during surgery. Pupillary diameter decreases reflexively in response to light flash, called photomotor reflex.
- Trial name
- ILLUMINANS (NCT03867955)
- Testing
- Collection of datas
- Where
- France
- Volunteers
- 30 people
- Sponsor
- Centre Hospitalier Universitaire de Saint Etienne
Visual Impairment, Ocular Illness
Pupillometry and Locus Coeruleus Activation (PuLCA)
This project will apply non-invasive, trans-cutaneous vagal nerve stimulation using various stimulation parameters to young, healthy adults to find the optimal set of parameters to elicit pupil response.
- Trial name
- PuLCA (NCT04579653)
- Testing
- transcutaneous electrical nerve stimulation devices
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Florida
Eye Diseases
Single Dose of 1% Tropicamide and 10% Phenylephrine for Pupillary Dilation
The purpose of this study is to compare the efficacy on pupillary dilation between the single dose versus the three doses of 1% tropicamide with 10% phenylephrine for complete ocular examination.
- Trial name
- NCT00120432
- Testing
- 1% tropicamide and 10% phenylephrine
- Where
- Thailand
- Volunteers
- 80 people
- Sponsor
- Khon Kaen University
Retinitis Pigmentosa, Leber's Hereditary Optic Neuropathy
Pupil Dynamics and Color Vision for the Detection of Eye Diseases
The development of new oculometry techniques allows fine and dynamic measurements of pupillary diameter and use in routine clinical practice.
- Conditions
- Retinitis Pigmentosa, Leber's Hereditary Optic Neuropathy, Stargardt Disease
- Trial name
- PupDyn (NCT04909398)
- Testing
- Dynamic pupillometry sessions
- Where
- France
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts
Myopia
Effect of Preoperative Pupil Size on Quality of Vision After Wavefront-Guided LASIK
The purpose of this study is to evaluate whether the size of the pupil has an effect on quality of vision in patients undergoing LASIK surgery.
- Trial name
- NCT00889941
- Testing
- LASIK
- Where
- United States
- Volunteers
- 51 people
- Sponsor
- Stanford University
Optic Neuritis
Interest of Dynamic Measures of the Pupil in Optic Neuritis
The investigators' hypothesis is that measuring the PCTdynamics would be an easy and reliable symptom to evaluate in pathologies affecting the optic nerve
- Trial name
- PCT-NORB (NCT02004054)
- Testing
- measure of pupil diameter
- Where
- France
- Volunteers
- 30 people
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
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
Pupil Diameter, Arousal
Effects of the Ultra-low Frequencies TENS on the Arousal Circuits
Pupil size is associated with the activity of the noradrenergic system, with an increase reflecting a higher state of arousal. Transmucosal electrical stimulation of the tongue could treat disorders related to dysfunctions of…
- Trial name
- NCT06790459
- Testing
- UlfTens (Ultra-low-frequencies Transcutaneous electrical nervous stimulation)
- Where
- Italy
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of L'Aquila
Sleep
Energy-efficient and Health Promoting Light for Elderly People
to investigate the effect of two lightning conditions on sleep hypothesizing that sleep length is influenced by the color of light during daytime
- Trial name
- light-age (NCT02216318)
- Testing
- blue light
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Glostrup University Hospital, Copenhagen
Pupil
Color and Pupil Function
This study will examine the effects of different colors of light on pupil function and alertness.
- Trial name
- NCT02636140
- Testing
- Light
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- VA Palo Alto Health Care System
Cataract, Lens Subluxation
Efficacy of an Ocular Bandage Contact Lens for the Treatment of Dry Eye After Complicated and Combined Cataract Surgery
To study the efficacy of an ocular bandage contact lens for the treatment of dry eye after complicated and combined cataract surgery
- Conditions
- Cataract, Lens Subluxation, Hypermature Cataract, Corneal Opacity
- Trial name
- NCT04120389
- Testing
- bandage contact lenses(PureVision; Bausch & Lomb Inc., Rochester, NY), phacoemulsification
- Where
- China
- Volunteers
- 30 people
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Retinopathy of Prematurity, Mydriasis
The Effects of Mydriatic Eye Drops in Retinopathy of Prematurity Examinations
Retinopathy of prematurity (ROP) is a retinal disorder of preterm neonates and a potential cause of blindness. As early diagnosis and treatment preserve vision, very low birth weight infants must be screened for ROP.
- Conditions
- Retinopathy of Prematurity, Mydriasis, Neonatal Disease, Analgesic Adverse Reaction
- Trial name
- NCT05880433
- Testing
- NIRS(INVOS 5100; Covidien Somanetics, Troy, MI
- Where
- Turkey (Türkiye)
- Volunteers
- 62 people
- Sponsor
- Istanbul Training and Research Hospital
Dilation, Pupil Reaction Absent
Efficacy of the MydCombi on Pupillary Dilation in Pediatric and Adult Patients
To raise the standard of care, improve the overall patient experience and streamline practice flow, Eyenovia has developed an innovative mydriatic to be delivered as a microdose by a specialized dispenser.
- Trial name
- NCT06366217
- Testing
- MydCombi Device, MydCombi Drug
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- University of California, San Francisco
Eye Cyclorotation Degree, Pupil Shift
Evaluation of Position-induced Cyclorotation Between Wavefront Measurement and Refractive Surgery by the Iris Registration Method
Cyclorotation of eyes may be affected by motion and orientation of the head and body. An automated alignment method with the technique of iris recognition was used to assess the amount and orientation of position-induced…
- Trial name
- NCT00943163
- Where
- Taiwan
- Volunteers
- 93 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital