Clinical trials: Axial Length
Cataract
Ocular Biometrics in a French Population
The investigators aimed to study ocular biometrics parameters and their association with age, gender and the prevalence of high myopia in a population of cataract surgery candidates in the South of France.
- Trial name
- NCT04992403
- Where
- France
- Volunteers
- 11,650 people
- Sponsor
- University Hospital, Montpellier
Collar Treatment of Stable Subaxial Spine Fractures
"The Length of Cervical Collar Treatment for Traumatic Sub-axial Fractures"
Most fractures of the cervical spine are considered stable and treated with a rigid cervical collar. However no studies have to date been published addressing the length of treatment.
- Trial name
- NCT02788760
- Testing
- Cervical collar (Miami J collar - Össur)
- Where
- Norway
- Volunteers
- 32 people
- Sponsor
- Oslo University Hospital
Cataract Senile
Axial Length Variability
The accuracy of IOL calculation relies on the one hand on axial length measurements and on the other hand on corneal and lens thickness measurements.
- Trial name
- NCT04580550
- Testing
- Axial length variability
- Where
- Austria
- Volunteers
- 50 people
- Sponsor
- Vienna Institute for Research in Ocular Surgery
Strabismus
Basic Intermittent Exotropia and Risk Factors for Postoperative Overcorrection and Under Correction
To evaluate preoperative risk factors for overcorrection and undercorrection following surgery for basic intermittent exotropia such as axial length of the globe, refractive error, age and sex
- Trial name
- NCT03153423
- Testing
- Strabismus surgery
- Where
- Egypt
- Volunteers
- 86 people
- Sponsor
- Minia University
Intraocular Pressure,, Postoperative Complications
Primary Vitrectomy for the Treatment of Retinal Detachment in Highly Myopic
Purpose: To assess the functional and anatomical outcome of primary vitrectomy without scleral buckling for rhegmatogenous retinal detachment (RRD) in highly myopic eyes with axial length over 30 mm.
- Trial name
- NCT01480505
- Testing
- Pars plana vitrectomy with gas tamponade
- Where
- France
- Volunteers
- 840 people
- Sponsor
- Centre Hospitalier Universitaire Dijon
Myopia
Clinical Investigation of a Novel Spectacle Lens on Slowing Down Juvenile Myopia Progression
The goal of this exploratory clinical trial is to evaluate the efficacy and safety of a test spectacle lens (standard single vision lens (SVL) during first year, and standard myopia control lens (MCL) in second year), designed…
- Trial name
- NCT06850168
- Testing
- SVL, SVL with passive red-light emission, MCL
- Where
- Singapore
- Volunteers
- 35 people
- Sponsor
- Essilor International
Myopia, Progressive
Stellest Lens Wear in Adult Progressing Myopes
It is expected that myopia progression stabilises in the late teenage years, however, some studies report that myopia progression continues through early adulthood in as many as one third of myopes.
- Trial name
- SWAP (NCT06520124)
- Testing
- Essilor® Stellest® spectacle lens, Single-vision spectacle lens
- Where
- United Kingdom
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- University of Ulster
Myopia, Myopia Progression
The A.R.R.E.S.T.® Spectacle Film Study
The goal of this clinical trial is to learn if spectacle films using Active Reconfiguration in Retinal Encoding of Spatio-Temporal (A.R.R.E.S.T.®) signal technology works to slow down the rate of myopia progression in myopic…
- Trial name
- NCT06692699
- Testing
- Single vision spectacle lens, A.R.R.E.S.T. spectacle film
- Where
- Vietnam
- Volunteers
- 123 people
- Sponsor
- nthalmic Pty Ltd
Introcular Lens Position
Axial Stability in Short and Long Eyes After Cataract Surgery
Post operative intraocular lens position is being measured after cataract surgery in 34 patients with long and short eyes.
- Trial name
- ACDC (NCT07210372)
- Where
- Austria
- Volunteers
- 34 people
- Sponsor
- Johannes Kepler University of Linz
Progressive Myopia
MAD Trial: Myopia Atropine Dose
The goal of this interventional study is to compare the efficacy of Atropine 0.05% to Atropine 0.5% treatment against progression of axial length in European children with progressive myopia, and to evaluate the safety…
- Trial name
- MAD (NCT05667454)
- Testing
- Atropine Ophthalmic 0.05%, Atropine Ophthalmic 0.5%
- Where
- 20 sites in Netherlands
- Volunteers
- 550 people
- Sponsor
- Erasmus Medical Center
Benign Intracranial Hypertension
Axial Length and Central Corneal Thickness in Benign Intracranial Hypertension
Patients in for treatment of benign intracranial hypertension will undergo two tests that are not routinely performed for these patients: central corneal thickness and axial length of the eye.
- Trial name
- NCT02541994
- Testing
- Pachette3, Lenstar-Think
- Volunteers
- 5 people
- Sponsor
- Ochsner Health System
Children, Hyperopia
Efficacy of S.T.O.P®KIT in Retarding Axial Length Growth in Children With Low Hyperopia
This is a multicenter, parallel-group, open-label, randomized controlled, superiority interventional clinical study initiated by investigators from Shanghai General Hospital (Study Protocol No.: IT-CRU-FAMB-001, Version V1.1…
- Trial name
- NCT07401511
- Testing
- Attaching different phase Dynamic Spatiotemporal Optical Films (S.T.O.P® KIT) when wearing spectacle frames
- Where
- 3 sites in China
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine
Myopia, Myopia, Progressive
Myopia Progression With a Novel Extended Depth of Focus Contact Lens
Myopia has been increasing in prevalence and severity throughout the world over the last 30 years. Increasing levels of myopia are associated with increased frequencies and severity of various ocular pathologies, including…
- Trial name
- NCT03358862
- Testing
- NaturalVue Multifocal Contact Lens
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Aller, Thomas A., OD
Refractive Errors, Axial Length, Eye
Optical Biometry and Spherical Aberration in Ametropic and Emmetropic Eyes
Aberrations play a significant role in the visual process and can be divided in lower-order and higher-order aberrations. The former can be measured using the commercially available IOL Master (Carl Zeiss Meditec AG, Germany) and…
- Conditions
- Refractive Errors, Axial Length, Eye, Corneal Wavefront Aberration
- Trial name
- NCT01663597
- Where
- Austria
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Axial Length (AL), Anterior Chamber Deep (ACD)
A-mode vs PalmScan Ultrasonography: Biometric Measurements.
Ultrasonography has become a critical ancillary test in the clinical practice of ophthalmology. It is commonly used as a standardized method for assessing intraocular biometry.
- Conditions
- Axial Length (AL), Anterior Chamber Deep (ACD), Lens Thickness (LT)
- Trial name
- NCT00804869
- Testing
- PalmScan A2000 ultrasonography system (Micro Medical Devices, Calabasas, CA), Standard A-mode ultrasound (Eye Cubed™, Ellex, Adelaide, Australia).
- Where
- Mexico
- Volunteers
- healthy volunteers welcome
- Sponsor
- Asociación para Evitar la Ceguera en México
Rhegmatogenous Retinal Detachment
Axial Length Change in Eyes Treated by Silicone Sponge Scleral Buckling
All existing medical literatue regarding axial length (AL) changes after scleral buckling surgery for retinal detachment, descibes changes after solid silicone buckling.
- Trial name
- NCT01647373
- Where
- 2 sites in Israel
- Volunteers
- 50 people
- Sponsor
- Meir Medical Center
Peribulbar Block
Minimum Effective Volume of Local Anesthetic for Peribulbar Block.Does it Differ With the Eyeball Axial Length?
The aim of this study is to calculate the minimum effective volume of local anesthetic for peribulbar block in patients undergoing cataract extraction surgery.
- Trial name
- NCT04036201
- Testing
- Bupivacaine
- Where
- Egypt
- Volunteers
- 121 people
- Sponsor
- Ain Shams University
Myopia, Orthokeratology
The Relationship of Relative Corneal Refractive Power Shift and Axial Length in Adolescents With Orthokeratology Lens
Orthokeratology lens is an effective method for myopia control. This study analyzed the relationship between the relative corneal refractive power shift and change of axial length in adolescents with orthokeratology lens.
- Trial name
- NCT05348369
- Where
- China
- Volunteers
- 364 people
- Sponsor
- Tianjin Eye Hospital
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
Hypertensive Complication
Evaluation Of Effect of Axial Length on Cup-To-Disc Ratio Among Non- Glaucomatous Hypertensive Patients
This observational cross-sectional study aims to compare the effect of axial length on the cup-to-disc ratio in non-glaucomatous hypertensive patients.
- Trial name
- NCT06913478
- Where
- Pakistan
- Volunteers
- 94 people
- Sponsor
- Superior University