Clinical trials: Cycloplegia
Cycloplegia
Cycloplegia and Refractive Status
Myopia is a public health problem, affecting the general population worldwide. The common modalities for correcting myopia include spectacles, contact lenses, and surgical procedures.
- Trial name
- NCT05585736
- Testing
- Cycloplegics
- Where
- Egypt
- Volunteers
- 388 people
- Sponsor
- Al-Azhar University
Cycloplegic Paralysis of Accommodation
Assessing Patient Comfort, Anxiety, and Satisfaction During CR Comparing Conventional Drops With ROC
This study aims to compare the efficacy of conventional cycloplegic agents, such as cyclopentolate, with rapid-onset cycloplegics, like a combination of tropicamide and phenylephrine, in reducing patient anxiety and discomfort…
- Trial name
- NCT06914063
- Testing
- Rapid-Onset Cycloplegic Drops, Conventional Cycloplegic Drops
- Where
- Pakistan
- Volunteers
- 74 people
- Sponsor
- Superior University
Optometry
To Evaluate the Consistency and Repeatability of Portable Automatic Optometry 2-WINS for Cycloplegic Optometry in Adolescents and Children
Myopia, also known as short-sightedness or near-sightedness, is a prevalent condition that typically emerges during childhood and early adulthood.
- Trial name
- NCT06346626
- Where
- China
- Volunteers
- 158 people
- Sponsor
- He Eye Hospital
Ametropia, Myopia; Refractive Error
The Objective of This Study is to Evaluate the Perfomance of a Photorefraction Device for Screening Ametropia in Children. Eligible Participants Will Undergo Multiple Refractive Error Measurements, Visual Acuity and Strabismus Assessments During a Single Evaluation Visit.
The goal of this clinical trial is to evaluate the performance of a photorefraction screener in terms of sensibility, sensitivity and accuracy on children aged 3 to 8 y.o.
- Conditions
- Ametropia, Myopia; Refractive Error, Myopia; Astigmatism
- Trial name
- NCT06882408
- Testing
- Photorefraction device under investigation, Comparator device, Tabletop auto-refractometer, Comparator device, portable photorefraction device
- Where
- 2 sites in France
- Volunteers
- 315 people, healthy volunteers welcome
- Sponsor
- Essilor International
Cycloplegia, Refractive Errors
Cycloplegic Refraction in Pediatric Patients With Esotropia
The primary outcome of this study is to compare cyclopentolate 1% and tropicamide 1% for cycloplegic refractions in pediatric populations with esotropia.
- Conditions
- Cycloplegia, Refractive Errors, Esotropia, Vision Disorders
- Trial name
- NCT06077682
- Testing
- Cyclopentolate, Tropicamide
- Where
- 2 sites in Jordan, Qatar
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Islamic Hospital, Jordan
Cycloplegia
Cycloplegic Refraction Among Children
The primary outcome of this study is to compare cyclopentolate 1% and tropicamide 1% for cycloplegic refractions in pediatric populations.
- Trial name
- NCT05442801
- Testing
- Cyclopentolate, Tropicamide
- Where
- Jordan
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Islamic Hospital, Jordan
Myopia, Left Eye
Short Term Refractive and Ocular Parameter Changes After Topical Atropine
In order we had designed a prospective clinical trial. Spherical equivalent refractive error (SER), axial length (AL), mean keratometric value (Mean-K), anterior chamber depth (ACD), and intraocular pressure (IOP) were measured…
- Trial name
- NCT03839888
- Testing
- 0.125% Atropine
- Volunteers
- 96 people
- Sponsor
- Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation
Refractive Errors, Ametropia
Performance of Refractometers With Self-adjusting Lenses Compared to Cycloplegia in Children (REFRALENS)
This study aimed to compare refractive measurements using Vision-S™ 700, an immersive and compact phoropter with a tunable-focus lens, and Vision-R™ 800, a phoropter with a tunable-focus lens without immersion, with cycloplegic…
- Trial name
- REFRALENS (NCT06668246)
- Testing
- Vision-S™ 700, an immersive and compact phoropter with a tunable-focus lens, and Vision-R™ 800, a phoropter with a tunable-focus lens without immersion, with cycloplegic refraction serving as the gold
- Where
- France
- Volunteers
- 43 people
- Sponsor
- University Hospital, Brest
Cataract
Age-Related Changes and Cycloplegia-Induced Differences in the Human Crystalline Lens
The ocular biometric parameters of the human crystalline lens including anterior chamber depth (ACD), lens thickness (LT), radii of curvature of anterior and posterior lens (ALR and PLR), lens equatorial diameter (LED), and lens…
- Trial name
- NCT04576884
- Where
- China
- Volunteers
- 129 people, healthy volunteers welcome
- Sponsor
- Wenzhou Medical University
Refractive Errors
A New More Efficient Cycloplegia Scheme
The purpose of this study is to determine whether tropicamide + phenylephrine cyclopentolate + applied for once waiting 30 minutes to retinoscopy (new scheme) is not inferior to apply cyclopentolate alone and wait 45 minutes to…
- Trial name
- NCT02177539
- Testing
- Cyclopentolate, Cyclopentolate+tropicamide+phenylephrine
- Where
- Chile
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Pontificia Universidad Catolica de Chile
Accomodation, Refractive Errors
Study on the Effect of Two Ways of Cycloplegia on Biological Parameters of Ciliary Muscle
Atropine has a ciliary muscle-paralysing effect and causes hyperopic drift. Besides, atropine has been proven to slow the progression of myopia. Many studies have suggested that atropine can increase the thickness of the choroid.
- Conditions
- Accomodation, Refractive Errors, Myopia, Cycloplegia
- Trial name
- NCT05449015
- Testing
- 1% atropine
- Where
- China
- Volunteers
- 144 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Presbyopia
A Clinical Trial to Evaluate a Corneal Inlay for the Improvement of Near Vision in Presbyopic Patients
This study will be a prospective, multicenter clinical trial in which a total of 400 subjects will be enrolled. All subjects will be followed over a 36 month time frame with a maximum of 15 clinical sites participating.
- Trial name
- NCT01373580
- Testing
- The Raindrop Near Vision Inlay
- Where
- 11 sites in United States
- Volunteers
- 373 people, healthy volunteers welcome
- Sponsor
- ReVision Optics, Inc.
Cycloplegic Refraction
Efficacy and Safety of Cyclopentolate Microdrops for Cycloplegic Refraction in Children
The purpose is to test the hypothesis that microdrop instillation of cyclopentolate 1% is non-inferior to standard of care, i.e., standard drop instillation of cyclopentolate 1%.
- Trial name
- NCT06885242
- Testing
- Microdrop instillation of cyclopentolate 1%, Standard drop instillation of cyclopentolate 1%
- Where
- Greece
- Volunteers
- 63 people
- Sponsor
- Aristotle University Of Thessaloniki