Clinical trials: Refractive Error
Myopia, Progressive
Contact Lens and Myopia Control in Optometry School Students
The purpose of the study is to determine the effect of Natural View Multifocal lenses, a soft multifocal lens, on retardation of myopia in an optometric student population. Close up work (i.e.
- Trial name
- NCT04334369
- Testing
- Proclear Single Vision Contact Lenses manufactured by CooperVision, Proclear Multifocal Contact Lenses manufactured by CooperVision
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Jeff Rabin
Myopia, Astigmatism
Randomized, Non-inferiority Trial Comparing SMILE and LASIK
Background: Small Incision Lenticule Extraction or SMILE is a novel form of 'flapless' corneal refractive surgery that was adapted from Refractive Lenticule Extraction (ReLEx).
- Conditions
- Myopia, Astigmatism, Hypermetropia
- Trial name
- NCT01216475
- Testing
- Femtosecond LASIK, Small incision lenticule extraction (SMILE)
- Where
- Singapore
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Presbyopia
Multifocal Lens Centration and Its Effect on Visual Performance in a Presbyopic Population
The purpose of this study is to use a corneal topographer, a device that is readily available in most optometric practices, in order to determine the position of the multifocal (MF) contact lens (CL) optics in relation to the…
- Trial name
- BUICK (NCT02228109)
- Testing
- Acuvue Oasys for Presbyopia, PureVision2 for Presbyopia, Biofinity Multifocal
- Where
- Canada
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Myopia
Variation of Orthokeratology Lens Treatment Zone (VOLTZ) Study
This project aims to study the effects of treatment characteristics on myopia control in orthokeratology by investigating the effects of modified treatment zone by reducing the lens back optic zone diameter on the effect of…
- Trial name
- NCT03191942
- Testing
- Modified ortho-k lenses, Ortho-k lenses
- Where
- 2 sites in Hong Kong
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia, Progressive
Choroidal Response to Novel Spectacle Lens to Control Myopia Progression
Diurnal variations in the thickness of the choroid have been reported in the literature, and, more recently, the role of the choroid has been studied with respect to its role in myopia (near-sightedness) progression.
- Trial name
- CHERRY (NCT03818880)
- Testing
- Novel spectacle lens design
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Myopia
Comparison of Efficacy Between Two Myopia Control Lenses
This is a one-year, mono-centre, randomize, double-masked, monocular cross-over clinical trial designed to test and compare the efficacy of the new lens design in slowing down the increase of axial length and controlling myopia…
- Trial name
- NCT06148870
- Testing
- Myopia Control Lens-1 (MCL1), Myopia Control Lens-2 (MCL2)
- Where
- Singapore
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Essilor International
Myopia, Orthokeratology
The Effect of Treatment Zone Decentration on Axial Length Elongation After Orthokeratology
Orthokeratology lens is an effective method for myopia control. This study analyzed the effects of treatment zone decentration on axial length elongation in adolescents with orthokeratology lens.
- Trial name
- NCT05365373
- Where
- China
- Volunteers
- 251 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Cataract, Presbyopia
IOL Implantation After KAMRA Inlay Removal
A. The primary purpose of the study is to evaluate outcomes of aphakic eyes implanted with the IC-8 IOL following cataract removal in prior inlay patients after KAMRA inlay removal. B.
- Trial name
- NCT03320473
- Testing
- IC-8 IOL
- Where
- Philippines
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- AcuFocus, Inc.