Clinical trials: Eye--Refractive Errors
Myopia
Effect of Using Myopia Prediction Algorithm on Myopia School-aged Children
In this study, the investigators aim to perform a prospective, randomized controlled study to compare the myopia development between myopia children using myopia prediction algorithm and myopia children without using myopia…
- Trial name
- NCT04045951
- Testing
- Myopia prediction algorithm
- Where
- China
- Volunteers
- 2,138 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Presbyopia
The Effects of Glasses-Free 3D Training on Visual and Cognitive Function in Presbyopic Individuals
This study aims to evaluate the effectiveness of glasses-free 3D visual training in improving visual function, visual comfort, and the application ability of visual functions in individuals with presbyopia.
- Trial name
- NCT06853691
- Testing
- glasses-free 3D visual training
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Presbyopia
Safety and Efficacy of an Intrastromal Transform™ Corneal Allograft (TCA) for Presbyopia Correction
The objective of this clinical study is to evaluate the safety and effectiveness of intrastromal implantation of the Allotex TransForm corneal allograft (TCA) for improving near vision in presbyopic subjects.
- Trial name
- NCT03671135
- Testing
- TCA Intrastromal Inlay
- Where
- 4 sites in Belgium, Ireland and 1 more
- Volunteers
- 121 people, healthy volunteers welcome
- Sponsor
- Allotex, Inc.
Myopia, Progressive
A Unified Index to Predict the Success Probability of Myopia Control
Orthokeratology lenses (OK-lens) and multifocal contact lenses (MFCL) are optical devices designed to slow down the progression of myopia. Both treatments a long-term commitment from doctors and patients.
- Trial name
- NCT05773118
- Testing
- orthokeratology lens, multifocal soft contact lens, Single vision spectacles
- Volunteers
- healthy volunteers welcome
- Sponsor
- Nova Southeastern University
Refractive Errors
Clinical Evaluation of Acuity 200 (Fluoroxyfocon A) RGP Contact Lens
The objective of this clinical investigation is to collect valid scientific safety and effectiveness data on the Acuity 200 (fluoroxyfocon A) Rigid Gas Permeable Contact Lens, manufactured from a newly developed rigid gas…
- Trial name
- Acuity 200 (NCT03971227)
- Testing
- Acuity 200 (Fluoroxyfocon A) contact lens, Acuity 100 (Hexafocon A) contact lens
- Where
- 3 sites in United States
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- Acuity Polymers, Inc.
Retinopathy of Prematurity, Myopia
Prematurity and Ophthalmological Changes
Ophthalmological differences in school-aged children with and without a history of retinopathy of prematurity
- Trial name
- NCT06452524
- Testing
- axial length (AU) and anterior chamber depth (ACD), optical coherence tomography (OCT)
- Where
- Turkey (Türkiye)
- Volunteers
- 211 people, healthy volunteers welcome
- Sponsor
- Ankara City Hospital Bilkent
Pathological Myopia
Genomewide Screening of Pathological Myopia
The purpose of this study is to evaluate the possible candidate gene of pathological myopia
- Trial name
- NCT00155753
- Where
- Taiwan
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Myopia, Small-incision Lenticule Extraction (SMILE) Surgery
Potential Risk Factors and Predictive Model Construction of OBL During SMILE
To explore the prediction of OBL by deep learning model in SMILE surgery
- Trial name
- NCT06577012
- Testing
- Small incision lenticule extraction
- Where
- China
- Volunteers
- 4,678 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Nanchang University
Hyperopia
Safety and Effectiveness Study of the MEL 80 Excimer Laser Using LASIK in the Treatment of Hyperopia
The purpose of this study is to determine whether the MEL 80 Excimer Laser is effective in the treatment of hyperopia, when used as part of the Laser In Situ Keratomileusis (LASIK) procedure.
- Trial name
- NCT00762281
- Testing
- MEL 80 Hyperopic LASIK Treatment
- Where
- 6 sites in United States
- Volunteers
- 189 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Myopia
Development of a New Device and Method to Assess the Degree of Myopia and/or Astigmatism in Myopic People
The purpose of this clinical investigation is to check whether the new device can correctly measure a person's degree of myopia and astigmatism.
- Trial name
- MDSW_DiVA2Rx (NCT07297810)
- Testing
- Optical correction values obtained with investigational device and visual acuity, Optical correction values obtained with an autorefractometer and visual acuity, Optical correction values obtained with a phoropter and visual acuity
- Where
- France
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Essilor International
Myopia, Dental Caries
Bedtime Routines and Children's Health
In Taiwan, the prevalence of sleep problems, myopia, and dental caries in school-age children is high. Little is known regarding the implementation of oral and vision health outcomes around bedtime.
- Conditions
- Myopia, Dental Caries, Sleep, Asthenopia
- Trial name
- NCT05201924
- Testing
- Bedtime routine, Control
- Where
- Taiwan
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- National Taiwan University
Myopia
Performance of DAILIES TOTAL1 Daily Disposable Contact Lenses in Habitual Soft Lens Wearers Who Report Substantial Digital Device Use
The purpose of this study is to evaluate the performance of DAILIES TOTAL1 daily disposable contact lenses with regards to subjective symptoms (comfort, dryness, vision) in lens wearers who use identify themselves as substantial…
- Trial name
- FOX (NCT06308666)
- Testing
- Delefilcon A contact lenses
- Where
- Canada
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Myopia
Myopia Prevalence in Canadian School Children - a Pilot Study
The goal of this study is to determine the prevalence of nearsightedness in Canadian school children living in the Waterloo Region.
- Trial name
- Falcon (NCT01942057)
- Where
- Canada
- Volunteers
- 173 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Myopia, Light; Therapy, Complications
Optimizing Light Exposure for Myopia Prevention and Control (LightSPAN)
The goal of this clinical trial is to evaluate whether the optimization of daily exposure to light in primary school children can lead to better myopia prevention and control.
- Conditions
- Myopia, Light; Therapy, Complications, Myopia Progression, Short-Sighted
- Trial name
- LightSPAN (NCT06631339)
- Testing
- Light Intervention, Digital Intervention, Control Group
- Where
- 5 sites in Singapore
- Volunteers
- 396 people, healthy volunteers welcome
- Sponsor
- National University of Singapore
Myopia
SEED-LVPEI Myopia Study
This randomized clinical trial study aims to investigate the efficacy of novel SEED's EDOF based mid-lens design in controlling the myopia progression in Indian children with these specific objectives: 1.
- Trial name
- SLIMS (NCT04618510)
- Testing
- SEED 1-dayPure EDOF soft contact lens, Single Vision Spectacles
- Where
- India
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- L.V. Prasad Eye Institute
Cataract, Myopia
VCSEL Based Optical Swept Source Biometry
Optical interferometric biometry is a non-invasive and highly precise method for measuring eye length and intraocular distances. The method already exists as commercial devices (e.g. IOLMaster, Carl Zeiss Meditec AG).
- Trial name
- VBOB (NCT06551480)
- Testing
- Biometry
- Where
- Austria
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Rainer Leitgeb
Myopia
To Study the Effects of Cordyceps Cicadae on Vision Care
Cordyceps cicadae is a traditional Asian herbal medicine with a variety of bioactive substances and curative effects similar to Cordyceps Cicadae, and it has been reported that anti-dry eye and eye protection ingredients can be…
- Trial name
- NCT05778409
- Testing
- Cordyceps cicadae extract
- Where
- Taiwan
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- China Medical University Hospital
Myopia
The Role of SNP of ECM and MMP on the Development of Pathological High Myopia
To study the clinical characteristics and inheritance of pathological myopia in Taiwanese patients.
- Trial name
- NCT00172952
- Where
- Taiwan
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Myopia, Hyperopia
Complete Easy Rub Comparative Efficacy Study
The aim of this trial is to assess Complete Easy Rub compared to a competitor multi-purpose solution in terms of lens cleanliness, subjective response and ocular response, when lenses are worn bilaterally on a daily wear basis…
- Conditions
- Myopia, Hyperopia, Astigmatism
- Trial name
- NCT01019564
- Testing
- Complete Easy Rub Formula MPS, Aquify MPS
- Volunteers
- healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Myopia, Astigmatism
Toric Orthokeratology - Slowing Eye Elongation
The aims of this study are to investigate the effects of ortho-k for astigmatic and myopic reduction and myopic control in children, and the long term effects on corneal curvatures and biomechanics.
- Trial name
- TO-SEE (NCT00978692)
- Testing
- Toric Orthokeratology lenses, Single-vision spectacles
- Where
- China
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University