Clinical trials: Pupil Diameter
Anesthesia, General, Pupil
Pupillometer as a Pain Index During General Anesthesia
This study evaluates the validity of pupil diameter as an indicator of pain during surgery under general anesthesia.
- Conditions
- Anesthesia, General, Pupil, Pain
- Trial name
- NCT04062864
- Testing
- Pupil size
- Where
- South Korea
- Volunteers
- 35 people
- Sponsor
- Seoul National University Hospital
Intraocular Lens Replacement
Safety and Efficacy of OMS302 in Subjects Undergoing Intraocular Lens Replacement With Phacoemulsification
The purpose of this study is to determine the safety and efficacy of OMS302 (the study drug) for maintaining intraoperative mydriasis in individuals undergoing Intraocular Lens Replacement (ILR) surgery.
- Trial name
- OMS302-ILR-003 (NCT01454063)
- Testing
- OMS302
- Where
- 16 sites in United States
- Volunteers
- 405 people
- Sponsor
- Omeros Corporation
Intraocular Lens Replacement
Safety, Efficacy and Pharmacokinetics of OMS302 in Subjects Undergoing Intraocular Lens Replacement With Phacoemulsification
The purpose of this study is to determine the safety, efficacy and pharmacokinetics of OMS302 (the study drug) for maintaining intraoperative mydriasis and preventing post operative pain in individuals undergoing Intraocular Lens…
- Trial name
- OMS302-ILR-004 (NCT01579565)
- Testing
- OMS302
- Where
- 14 sites in United States, Netherlands
- Volunteers
- 416 people
- Sponsor
- Omeros Corporation
Cataract
A Comparative Study of the Results of Dynamic and OPD Static Measurement of Pupil Diameter Before and After Cataract Surgery by Pupil Detectors
Age-related cataract remains the leading cause of blindness in developing countries. And, with the aging of the population in these countries, the number of cataract patients will continue to grow.
- Trial name
- NCT06505096
- Testing
- cataract surgery
- Volunteers
- 60 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Normal Non-fluency, Cataract
Comparative Study of the Optical Biometer for Measurements of the Eye
The primary purpose of this comparative clinical study is to collect clinical data to demonstrate the equivalence of the investigational device to the predicate device for measurements of the eye.
- Conditions
- Normal Non-fluency, Cataract, Aphakic Eye, Eyes With Corneal Abnormality
- Trial name
- NCT01729962
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- Nidek Co. LTD.
Retinopathy of Prematurity
Changes in Vital Signs and Pupil Diameter Related to Pharmacologic Mydriasis in Premature Infants: A Randomized Double Blind Clinical Study
Retinopathy of prematurity (ROP) is one of the common anatomic causes of blindness among Filipinos, accounting for 47.7% of the cases.
- Trial name
- NCT04838665
- Testing
- 0.5% cyclopentolate and 2.5% phenylephrine, 0.5% tropicamide + 0.5% phenylephrine, 0.5% tropicamide + 0.5% phenylephrine with a cotton wick
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of the Philippines
Labor, Obstetric, Pain
Estimation of Pain During Epidural Analgesia During Labor
Epidural regional anesthesia is a technique to eliminate or lessen pain during obstetric labor and childbirth. It consists in establishing a catheter into the epidural space and to block the transmission of pain sensations by…
- Trial name
- PERIDANS (NCT02551354)
- Testing
- Portable video pupillometer
- Where
- France
- Volunteers
- 40 people
- Sponsor
- Centre Hospitalier Universitaire de Saint Etienne
Benign Prostatic Hyperplasia, Pupil Anomaly
The Effects of α-adrenergic Receptor Antagonists on Choroid and Pupil
It was aimed to evaluate and investigate the effects of tamsulosin hydrochloride, has preferential selectivity for the α1A receptor in the prostat versus the α1B receptor in the blood vessels, and alfuzosin hydrochloride on…
- Conditions
- Benign Prostatic Hyperplasia, Pupil Anomaly, Choroid Disease
- Trial name
- NCT03144596
- Testing
- Alfuzosin Hydrochloride 10 MG, Tamsulosin Hydrochloride 0.4 MG
- Volunteers
- 63 people
- Sponsor
- Kocatepe University
Chronic Pain Due to Injury
Effects of Intramuscular (IM) Oxytocin on Pupil Diameter and Heart Rate Variability (HRV)
The goal of this study is to test the effects of oxytocin on heart rate variability and pupil diameter, both of which have subtle effects on the activity rate of the autonomic nervous system.
- Trial name
- NCT04105998
- Testing
- Oxytocin
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Intraocular Lens Replacement, Intraoperative Floppy Iris Syndrome
Intraoperative Floppy Iris Syndrome Undergoing Intraocular Lens Replacement Surgery
The purpose of this study is to evaluate the effect of OMS302 on the signs of Intraoperative Floppy Iris Syndrome in patients at risk.
- Trial name
- NCT02093689
- Testing
- Part 1 OMS302, Part 2 OMS302
- Where
- 2 sites in Austria, Germany
- Volunteers
- 18 people
- Sponsor
- Omeros Corporation
Sleep Apnea Syndrome, Obstructive, Drowsiness
Ocular Parameters in Patients With Sleep Apnea
The aim of this study is to assess the ocular parameters of drowsiness in patients with diagnosed Obstructive Sleep Apnea Syndrome through objective methods of ocular imaging and subjective evaluation methods (questionnaire)
- Conditions
- Sleep Apnea Syndrome, Obstructive, Drowsiness, Blinking, Concentration Ability Impaired
- Trial name
- NCT05911737
- Testing
- Short video and Questionnaire
- Where
- Greece
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Pupil Diameter
Quality of Vision in Implantable Collamer Lens (ICL)
The aim of this study is to observe the influence of pupil size upon visual outcome in patients with Visian Implantable Collamer Lens(ICL) and toric-ICL implantation.
- Trial name
- NCT04982107
- Where
- China
- Volunteers
- 70 people
- Sponsor
- He Eye Hospital
Unilateral Cataract Extraction, Congenital Cataract
A Randomized Study in Children Ages Birth Through Three Years Undergoing Unilateral Cataract Extraction With or Without Lens Replacement
The purpose of this study is to evaluate the effect of OMS302 compared to phenylephrine when administered in irrigation solution during cataract extraction on intraoperative pupil diameter, acute postoperative pain, and safety in…
- Trial name
- ILR7 (NCT02132312)
- Testing
- OMS302, Phenylephrine HCl
- Where
- 11 sites in United States
- Volunteers
- 78 people
- Sponsor
- Omeros Corporation
Measurement of Pupil Diameter
Effects of Sevoflurane and Propofol on Light Flash Evoked Pupillometry
Null hypothesis (HO): There will be no difference in pupillometry readings when using any of the maintenance anesthetic techniques within subjects.
- Trial name
- NCT00695890
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Medicine and Dentistry of New Jersey
Healthy
Effect of Brimonidine Tartrate Ophthalmic Solution 0.15% on Pupil Diameter in Normal Eyes
The objective of this study is to evaluate the effect of brimonidine tartrate ophthalmic solution 0.15% (Alphagan P) on pupil diameter under different luminance conditions.
- Trial name
- NCT00413751
- Testing
- Brimonidine tartrate ophthalmic solution 0.15% (Alphagan P)
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Walter Reed Army Medical Center
Pupillary Disorders
Correlation of Pupillary Diameter Changewith Age and Anterior Chamber Depth After Cataract Surgery
PURPOSE: To assess the correlation between the change in pupil diameter, age and depth of the anterior chamber after 3 months of cataract surgery both in photopic and mesopic conditions.
- Trial name
- NCT04286646
- Where
- Spain
- Volunteers
- 55 people
- Sponsor
- Clinica Oftalmologica TACIR
no Condition, Electroencephalography
Testing the Noradrenergic Hypothesis of Transcutaneous Vagus Nerve Stimulation
This study investigates the capacity of non-invasive vagus nerve stimulation, applied at the ear, to alter to measures of locus coeruleus output pupil diameter and EEG alpha power.
- Conditions
- no Condition, Electroencephalography, Pupil Diameter
- Trial name
- NCT04455295
- Testing
- Transdermal Vagus Nerve Stimulation (tVNS)
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Arkansas Tech University
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
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
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