Clinical trials: Pupil
Intraocular Pressure
The Effect of Brimonidine on Intraocular Pressure When Dilating Routine Patients
This an interventional study looking at two different sequences of pre-operative eye drops, to determine which order is more effective in reducing intraocular pressure with pupil dilation.
- Trial name
- NCT03139708
- Testing
- Alphagan, Phenylephrine, Tropicamide
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
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
Opiate Dependent, Previous Illicit Drug Use
Pupillometry and Pain Thresholds Patients Substituted by Methadone and Buprenorphine
The purpose is to study the relation between pupillary diameter measured under scotopic conditions, and the pain thresholds measured at the time of peak and residual effect of methadone/buprenorphine in opiate-dependent patients…
- Trial name
- PUPIDOL (NCT01560442)
- Testing
- Buprenorphine and Methadone Hydrochloride
- Where
- France
- Volunteers
- 100 people
- Sponsor
- University Hospital, Clermont-Ferrand
Cataract
Effect of Anti-inflammatory Topical Prednisolone, Nepafenac and Ketorolac in Intra-operative Mydriasis in Facetectomies
The main objective of this study is to compare the effect of preoperative use of anti-inflammatory topical prednisolone acetate 1%, nepafenac 0.1% and ketorolac tromethamine 0.4% of, plus a placebo, in maintaining the…
- Trial name
- NCT00865540
- Testing
- prednisolone acetate 1%, ketorolac tromethamine 0.4%, nepafenac 0.1%
- Where
- Brazil
- Volunteers
- 30 people
- Sponsor
- Clinica Oftamologica Zona Sul
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
Cataract, Miosis
Nepafenac Versus Ketorolac Eye Drops in Prevention of Intraoperative Miosis During Cataract Surgery
This study aim at determining the efficacy of Nepafenac and Ketorolac in obtaining adequate intraoperative mydriasis and preventing miosis during cataract surgery.
- Trial name
- NCT03851172
- Testing
- Ketorolac Ophthalmic, Nepafenac Ophthalmic, Cyclopentolate Ophthalmic
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Assiut University
Career Decision-making Difficulties, Worry
REBT Intervention Program for Career Decision-making Difficulties in High School Pupils
Career decision-making difficulties are frequent problems for adolescents. Regular intervention or prevention programs mainly provide information for the students about themselves, about the world of work, about their interests…
- Conditions
- Career Decision-making Difficulties, Worry, Psychological Distress
- Trial name
- NCT03807895
- Testing
- REBT Career Intervention, Regular Career Intervention
- Where
- Romania
- Volunteers
- 235 people, healthy volunteers welcome
- Sponsor
- Babes-Bolyai 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
Pain
Pain Assessment During General Anesthesia
During general anesthesia, two treatments are used : hypnotic and opioid treatment. Opioid treatment is used for pain assessment.
- Trial name
- DOLANS (NCT01303471)
- Testing
- opioid (remifentanyl)
- Where
- France
- Volunteers
- 75 people
- Sponsor
- Centre Hospitalier Universitaire de Saint Etienne
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
Myopia, Progressive
Effect of Atropine on Pupil Size and Quality of Vision
This aims to investigated the short-term (12, 16, and 20 h) effects of 0.01% atropine (0.1 mg/ml) on pupil size and subjective quality of vision in participants with myopia.
- Trial name
- NCT06071260
- Testing
- 0.01% atropine eye drop
- Where
- China
- Volunteers
- 40 people
- Sponsor
- He Eye Hospital
Pupillary Function, Abnormal, Cerebral Aneurysm
Impact of Acute Cerebral Diseases on the Autonomous Nervous System: Progression and Correlation to Therapy and Outcome
The pupilometer determines the alteration of the pupil diameter after a defined light stimulus. In this study data is collected from pupilometer measurements of patients with an acute cerebral disease.
- Trial name
- Pupillometry (NCT02999659)
- Testing
- Pupilometer
- Where
- Germany
- Volunteers
- 300 people
- Sponsor
- RWTH Aachen University
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
Pupil Examination
Monochromatic Digital-Pupillometry With Two Automated Devices in Comparison to Manual Measurements on Digital Photographs
Retrospective, analysis of three different methods to measure patients' pupil diameters
- Trial name
- NCT02978092
- Volunteers
- 15 people
- Sponsor
- University Hospital Tuebingen
Presbyopia, Near Vision
Evaluation of the Efficacy and Safety of LNZ101 and LNZ100 for the Presbyopia
A Multi-Center, Randomized, Double-Masked, Placebo-Controlled Phase 3 Evaluation of the Efficacy and Safety of LNZ101 and LNZ100 for the Treatment of Presbyopia
- Conditions
- Presbyopia, Near Vision, Miosis, Eye Diseases
- Trial name
- NCT06045299
- Testing
- Aceclidine+Brimonidine combination ophthalmic solution, Aceclidine ophthalmic solution
- Where
- 19 sites in China
- Volunteers
- 300 people
- Sponsor
- Corxel Pharmaceuticals
Mydriasis
Safety and Efficacy of Phenylephrine 2.5%-Tropicamide 1% Microdose Ophthalmic Solution for Pupil Dilation
This study evaluated pupil dilation after administration of fixed combination tropicamide-phenylephrine (TR/PH) vs. placebo. Participants attended 3 visits.
- Trial name
- MIST-2 (NCT03751098)
- Testing
- Tropicamide/Phenylephrine ophthalmic solution (TR/PE)
- Where
- 2 sites in United States
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Eyenovia Inc.
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
Horner's Syndrome
Horner's SD After Thoracic Epidural Block
This study prospectively evaluates the incidence of Horner's syndrome after thoracic epidural anesthesia following continuous thoracic epidural analgesia for mastectomy.
- Trial name
- NCT02130739
- Testing
- thoracic epidural anesthesia, mastectomy, Ropivacaine
- Where
- South Korea
- Volunteers
- 450 people
- Sponsor
- Soonchunhyang University Hospital
Myopia
Does Pupil Size Matters in Refractive Surgery?
To determine the influence of pupil size in refractive surgery. If any influence exist.
- Trial name
- NCT01678729
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ziv Hospital