Clinical trials: Refractive Error - Myopia
Myopia
Evaluating the Effect of Optical Zones on Correction for SMILE: Vector Analysis
Evaluate the effect of the size of optical zones (OZ) on myopia and astigmatism correction in small incision lenticular extraction.
- Trial name
- NCT05017376
- Testing
- small incision lenticular extraction
- Where
- China
- Volunteers
- 140 people
- Sponsor
- Tianjin Eye Hospital
Myopia (Disorder), Astigmatism
Optical Quality of the Cornea in Orthokeratology
Analyzing Optical Quality After the Use of Overnight Orthokeratology (Ortho-K)
- Trial name
- COPCORTO (NCT06775509)
- Testing
- Ortho-K
- Where
- Spain
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Institut Investigacio Sanitaria Pere Virgili
Myopia
Safety and Efficacy of Defocus Distributed Multi-point Lens in Myopia Control
Evaluate the safety and effectiveness of experimental group by comparing with the control group
- Trial name
- NCT05340699
- Testing
- Defocus Distributed Multi-point lens, Single vision lens
- Where
- China
- Volunteers
- 168 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Eye--Refractive Errors
Effect of Using Myopia Prediction Algorithm
In this study, the investigators aim to perform a prospective, randomized controlled study to compare the myopia development between children using myopia prediction algorithm and children without using myopia prediction…
- Trial name
- NCT04005014
- Testing
- Myopia prediction algorithm
- Volunteers
- 1,680 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Myopia
A Study Assessing the Efficacy and Safety of DE-127 Ophthalmic Solution in Subjects With Mild or Moderate Myopia (APPLE)
To investigate the safety and efficacy of three concentrations of DE-127 ophthalmic solution when compared to Placebo in subjects diagnosed with mild or moderate myopia. To investigate the dose response of DE-127.
- Trial name
- NCT03329638
- Testing
- DE-127 Ophthalmic Solution low dose, DE-127 Ophthalmic Solution medium dose, DE-127 Ophthalmic Solution high dose
- Where
- Singapore
- Volunteers
- 99 people
- Sponsor
- Santen Pharmaceutical Co., Ltd.
Progressive Myopia
Efficacy Study of Different Lens Treatments on Chinese Adolescent Myopia
The purpose of this study is to determine the efficacy of different lens treatments (normal spectacle lens, ortho-K, \& Myovision) on myopia control in Chinese adolescent patients.
- Trial name
- DLTCAM (NCT02001415)
- Testing
- Spectacles, Myovision, Orthokeratology
- Where
- China
- Volunteers
- 120 people
- Sponsor
- Peking University People's Hospital
Myopia, Myopic Astigmatism
Laser In-situ Keratomileusis With Crosslinking Compared to Conventional LASIK in Patients With High Myopia
The objectives of this study are to evaluate the safety and efficacy of a treatment regimen for high myopia and myopic astigmatism: LASIK followed by crosslinking performed with the KXL Crosslinking-System and VibeX Xtra…
- Conditions
- Myopia, Myopic Astigmatism, Crosslinking, Corneal Ectasia
- Trial name
- NCT03913338
- Testing
- LasikXtra, LASIK
- Where
- Germany
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University Clinic Frankfurt
Myopia, Astigmatism
New Treatment Algorithm to Reduce Spherical Aberration After LASIK Correction for Myopia
The purpose of this clinical trial is to demonstrate that treatments generated by an investigational algorithm reduces spherical aberration compared to currently available iDesign treatments.
- Trial name
- NCT01988415
- Testing
- VSS-Rx1 OPM vs Commercial iDesign Treatment
- Where
- Colombia
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Myopia
Clinical and Genetic Studies in Families With Myopia and Related Diseases
This study will examine the inheritance of myopia in families of various nationalities and ethnic backgrounds to identify gene changes that cause myopia or similar diseases and to better understand these conditions.
- Trial name
- NCT00272376
- Where
- 2 sites in United States, China
- Volunteers
- 851 people
- Sponsor
- National Eye Institute (NEI)
Presbyopia, Astigmatism
Clinical Performance Evaluation of Two Frequent Replacement Silicone Hydrogel Multifocal Toric Contact Lenses
The purpose of this study is to evaluate on-eye clinical performance of the investigational contact lenses following 30 days of wear in the intended population.
- Trial name
- NCT06461455
- Testing
- Lehfilcon A multifocal for astigmatism contact lenses, Samfilcon A multifocal for astigmatism contact lenses, CLEAR CARE® Cleaning & Disinfecting Solution
- Where
- 11 sites in United States
- Volunteers
- 95 people
- Sponsor
- Alcon Research
Myopia
Evaluating Contact Lens Optics
This study will evaluate changes in refractive error and visual performance between a single vision soft contact lens and multifocal soft contact lens
- Trial name
- NCT05028790
- Testing
- Single vision contact lens, Multifocal contact lens
- Where
- United States
- Volunteers
- 16 people
- Sponsor
- David A Berntsen, OD PhD
Myopia, Astigmatism
SMILE vs. LASIK Using Contoura With Phorcides
Subjects will undergo SMILE surgery in one eye and LASIK using Contoura with Phorcides on the contralateral eye to correct myopia.
- Trial name
- NCT05844397
- Testing
- WaveLight EX500 Excimer Laser System, VisuMax Surgical Laser
- Where
- United States
- Volunteers
- 56 people
- Sponsor
- 59th Medical Wing
Choroidal Neovascularisation
Ranibizumab for the Treatment of Choroidal Neovascularisation (CNV) Secondary to Pathological Myopia (PM): an Individualized Regimen
This study is designed to provide efficacy and safety data in patients with choroidal neovascularisation (CNV) secondary to myopia using an individualized as-needed (PRN) dosing schedule.
- Trial name
- REPAIR (NCT01037348)
- Testing
- ranibizumab 0.5mg
- Where
- 12 sites in United Kingdom
- Volunteers
- 65 people
- Sponsor
- Novartis
Myopia, Astigmatism
Prospective Study of Lens Performance of a Monthly Replacement Lens at Two Weeks and Four Weeks
The purpose of this study is to compare the overall performance of a monthly replacement contact lens when worn for one month and when worn for two weeks.
- Conditions
- Myopia, Astigmatism, Presbyopia
- Trial name
- NCT01293240
- Testing
- lotrafilcon B contact lens
- Volunteers
- 117 people
- Sponsor
- CIBA VISION
Myopia
A Dispensing Comparison of a Test Daily 1 Day Lens Against a Control 1 Day Lens.
The purpose of this study is to compare the dispensing performance of somofilcon A test 1 day contact lens against somofilcon A control 1 day contact lens.
- Trial name
- NCT03951610
- Testing
- Test lens, Control lens
- Where
- 2 sites in United States
- Volunteers
- 52 people
- Sponsor
- CooperVision, Inc.
Refractive Surgery, Myopia
Comparison Between TPRK Versus AAPRK in Correction of Myopia
PURPOSE: The aim of the study is to compare visual acuity means, refractive results, safety, and efficacy of TPRK with AAPRK as primary outcomes and surgical time, pain scores, haze levels, and healing time as secondary outcomes.
- Trial name
- NCT03569423
- Testing
- Transepithelial photorefractive keratectomy, Alcohol assisted photorefractive keratectomy
- Where
- 2 sites in Egypt, Saudi Arabia
- Volunteers
- 100 people
- Sponsor
- Minia University
Healthy, Myopia
Ocular Imaging With Spectral Domain Optical Coherence Tomography
The purpose of this study is to analyze macular retinal thickness and macular volume using the spectral domain - optical coherence tomography (SD-OCT) in normal eyes and in eyes with various ocular diseases.
- Conditions
- Healthy, Myopia, Hypermetropia
- Trial name
- NCT00926549
- Testing
- Spectral domain-OCT (Cirrus™ HD-OCT, Carl Zeiss Meditec AG)
- Where
- South Korea
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Yonsei University
Myopia
Performance Evaluation of Daily Disposable Contact Lenses in Habitual Lens Wearers Who Use Digital Devices Frequently
The goal of this study is to compare the performance of two daily disposable silicone hydrogel lenses.
- Trial name
- NCT05805150
- Testing
- Control Lens (stenfilcon A), Test Lens (senofilcon A)
- Where
- 4 sites in United States
- Volunteers
- 69 people
- Sponsor
- CooperVision, Inc.
Myopia
Polarization Sensitive Optical Coherence Tomography
The purpose of the study is to use the polarization sensitive optical coherence tomography (PS-OCT) developed by Singapore Eye Research Institute, to evaluate the potential OCT scleral biomarkers capable of predicting risk of…
- Trial name
- NCT05809674
- Testing
- Polarization sensitive optical coherence tomography (PS-OCT)
- Where
- Singapore
- Volunteers
- 178 people, healthy volunteers welcome
- Sponsor
- Singapore Eye Research Institute
Refractive Errors, Myopia
Air Optix® Night and Day® Aqua Daily Wear
The purpose of this Post-Market Clinical Follow-Up (PMCF) study is to assess long term performance and safety of Air Optix® Night and Day® Aqua (AONDA) contact lenses in a real-world setting when worn as daily wear for vision…
- Conditions
- Refractive Errors, Myopia, Hyperopia
- Trial name
- NCT05976750
- Testing
- Lotrafilcon A contact lenses, Balafilcon A contact lenses
- Where
- United States
- Volunteers
- 102 people
- Sponsor
- Alcon Research
The first 1,020 results can be paged through. Add a filter or change the sort order to reach the rest.