Clinical trials: Refractive Error - Myopia
Myopia
Optical Coherence Pachymetry to Evaluate Central Corneal Ablation Depth in Myopic Femtosecond Laser in Situ Keratomileusis
Prospective study aiming to measure central ablation depth during excimer laser surgery in myopic patients operated with femtosecond laser assisted LASIK with intraoperative OCP, before and after laser ablation.
- Trial name
- PACO (NCT02893644)
- Where
- France
- Volunteers
- 50 people
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Myopia
Effects of Low Concentration Atropine on Pupillary Size and Accommodative Amplitude
To assess the two-week ocular responses, especially on pupillary size and accommodative amplitude, of nightly application of 0.01% or 0.02% or 0.03% atropine eye drops in children with myopia who were randomized to use of three…
- Trial name
- NCT03699423
- Testing
- 0.01% atropine eye drops, 0.02% atropine eye drops, 0.03% atropine eye drops
- Where
- Vietnam
- Volunteers
- 58 people
- Sponsor
- Hai Yen Eye Care
Myopia, Progressive
Myopia Control Combined PBM With Myopic Defocus Lens in Children
To study the efficacy of myopi control with two methods: low lever red light and peripheral defocus spectacles with four groups and design with prospective, double-blind, randimized, and with control for 6 month.
- Trial name
- NCT05756959
- Testing
- PBM, Peripheral defocus spectacles, Single vision spectacles
- Where
- China
- Volunteers
- 304 people
- Sponsor
- Beijing Airdoc Technology Co., Ltd.
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 Surgery, Refractive Error - Myopia
Evaluate the Safety and Effectiveness of the AccuraSee™ IOPCL for Secondary Implantation in the Capsular Bag to Improve Near and/or Intermediate Vision Following Previous Cataract Surgery
This is a study to evaluate the safety and effectiveness of the AccuraSee™ intraocular pseudophakic capsular lens (IOPCL) to improve near and/or intermediate vision following previous cataract surgery.
- Trial name
- NCT06625749
- Testing
- Accurasee™ IOPCL
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- OnPoint Vision Inc
Myopia, Progressive
Near Horizontal Heterophoria in Chinese Children
This study aimed to assess the association of refraction and axial length with near-horizontal heterophoria in a large population-based study of school-aged Chinese children.
- Trial name
- NCT05007626
- Testing
- axial length and refractive error
- Where
- China
- Volunteers
- 15,081 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Refractive Error
Perfecting Refraction in India With Superior Service Models
Some programs do the screening, refraction testing and provision of spectacles to children entirely in the school setting ("School Model").
- Trial name
- PRISSM (NCT03983278)
- Testing
- School Model, Referral Model, Referral Model + Cost Recovery
- Where
- 3 sites in India
- Volunteers
- 162 people
- Sponsor
- Sun Yat-sen University
Myopia, Hyperopia
Clinical Evaluation of Two Frequent Replacement Soft Spherical Contact Lenses
This was a single-blind (participant masked), interventional, prospective, direct refit, bilateral wear short-term fitting study.
- Trial name
- NCT05656885
- Testing
- Lens A, Lens B
- Where
- Spain
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Nearsightedness
Effect of Defocus in Soft Contact Lenses on Internal Retinal Vascularization
The purpose of this study is to gain a better understanding of the retinal vascular changes that occur in response to the optical effect of a myopic defocus daily disposable soft contact lens (MDSL) in a group of healthy young…
- Trial name
- NCT06527274
- Testing
- Experimental: Myopic defocus soft lens design (MDSL), Active Comparator: Single vision soft lens design (SVSL
- Where
- Canada
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Université de Montréal
Myopia, Astigmatism
Safety and Efficacy Evaluation of a New Contact Lens Disinfecting Solution in Soft Contact Lens Wearers
The purpose of this study is demonstrate substantial equivalence of an investigational contact lens disinfecting solution to a commercially available contact lens solution in silicone hydrogel and soft contact lens wearers.
- Conditions
- Myopia, Astigmatism, Hyperopia, Refractive Error
- Trial name
- NCT01912768
- Testing
- FID 120947A contact lens disinfecting solution, renu fresh multi-purpose solution, Soft contact lenses
- Volunteers
- 362 people
- Sponsor
- Alcon Research
Myopia
Eye Exercise, Transcutaneous Electrical Nerve Stimulation on Prevention of Myopia Progression
In Taiwan, the increasing prevalence of myopia shows a decline with age. Myopia has become a serious ocular problem in children because high myopia may lead to retinal damage, cataract and glaucoma.
- Trial name
- NCT04017234
- Testing
- frequency following response, eye exercise, and transcutaneous
- Where
- Taiwan
- Volunteers
- 27 people
- Sponsor
- China Medical University Hospital
Myopia, Astigmatism
A Three-Phase Contralateral Comparison of Ray-Tracing Guided LASIK Versus Three Other Refractive Surgery Platforms to Correct Myopia or Myopia With Astigmatism
This purpose of this study is to compare a new form of LASIK called Ray Tracing Guided LASIK to 3 other forms of corneal refractive surgery: 1. KLEx (KeratoLenticule Extraction) using the Zeiss Visumax 800 Laser, 2.
- Trial name
- NCT07201298
- Testing
- Ray-Tracing Guided LASIK, Keratorefractive Lenticule Extraction (KLEx), WaveFront Optimized LASIK
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Hoopes Vision
Myopia, Progressive
DIMS-myopia Progression ADN Axial Length Growth
To confirm the efficacy of DIMS lenses in controlling myopia progression, we planned a prospective randomized controlled clinical study.
- Trial name
- NCT05300321
- Testing
- frame lens
- Where
- China
- Volunteers
- 82 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Myopia
Short-term Clinical Performance of Multifocal Soft Contact Lens
The study is aimed to observe the short-term clinical performance of MiSight™ multifocal soft contact lens compared with Proclear™ 1day, including objective examination, subjective acceptability of wearers, and doctors'…
- Trial name
- NCT05273606
- Testing
- MiSight mutifocal soft contact lens, Proclear 1 Day soft contact lens
- Where
- China
- Volunteers
- 40 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia, Hyperopia
Creating LASIK Flaps With the LenSx Femtosecond Laser
This will be a prospective, single-center clinical trial of up to 50 eyes of subjects scheduled to undergo LASIK surgery requiring an initial corneal flap. Subjects will be screened for eligibility.
- Trial name
- NCT01556893
- Testing
- LenSx Laser
- Where
- Hungary
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Alcon LenSx, Inc.
Myopia, Myopic Astigmatism
Optical Quality, Threshold Target Identification, and Military Target Task Performance After Advanced Keratorefractive Surgery
To determine the effect of two types of wavefront modalities (WFG vs. WFO) and two types of refractive surgery (PRK vs. LASIK) on visual and military task performance after laser refractive surgery.
- Trial name
- NCT01097525
- Testing
- WFG PRK, WFG LASIK, WFO PRK
- Where
- 2 sites in United States
- Volunteers
- 224 people, healthy volunteers welcome
- Sponsor
- Fort Belvoir Community Hospital
Pre-myopia, Myopia
Managing Premyopia in Chinese Children Using Artificial Intelligence Assisted Defocus Incorporated Multiple Segments Based Spectacle Lens: a Randomized Controlled Clinical Trial
Pre-myopia refers to a condition in which children have not yet developed myopia but exhibit insufficient hyperopic reserve (≤ +0.75 D).
- Trial name
- NCT07765550
- Testing
- Artificial Intelligence Assisted DIMS based Spectacle Lens, Smartwatches
- Where
- China
- Volunteers
- 128 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia
CHAMP: Study of NVK-002 in Children With Myopia
Stage 1: To evaluate the safety and efficacy of 2 concentrations of NVK-002 compared to Vehicle (placebo) for slowing the progression of myopia in children over a 3 year treatment period.
- Trial name
- NCT03350620
- Testing
- NVK-002 Concentration 1, NVK-002 Concentration 2
- Where
- 26 sites in United States, Hungary and 4 more
- Volunteers
- 670 people
- Sponsor
- Vyluma, Inc.
Myopia, Myopia Progression
The A.R.R.E.S.T.® Contact Lens Study
The goal of this clinical trial is to learn if contact lenses 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 compared to…
- Trial name
- NCT06878118
- Testing
- Single-vision contact lens, A.R.R.E.S.T.® contact lens
- Where
- 2 sites in China, Malaysia
- Volunteers
- 80 people
- Sponsor
- nthalmic Pty Ltd
Pseudophakia, Myopia
Treatment of Residual Refraction Errors 6 Months After Trifocal IOL Implantation With Relex-Smile
Successful treatment of residual refraction 6 months after IOL Implantation with Relex-Smile.
- Conditions
- Pseudophakia, Myopia, Hyperopia
- Trial name
- NCT04712318
- Testing
- Relex Smile, Relex smile with fresh corneal lenticule implantation
- Where
- Kosovo
- Volunteers
- 130 people
- Sponsor
- Eye Hospital Pristina Kosovo
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