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auto refraction

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Child, Only Trial in Marghita (Refraction measurement with auto-ref-keratometer Canon)

Completed
  • Child, Only
  • Refraction measurement with auto-ref-keratometer Canon
  • Marghita, Bihor, Romania
    Holhoș Larisa Bianca
Apr 1, 2021

Cataract Senile Trial in Vienna (Auto and Subjective Refraction)

Unknown status
  • Cataract Senile
  • Auto and Subjective Refraction
  • Vienna, Austria
    Hanusch Hospital, Department of Ophthalmology
Oct 3, 2020

Aphakia, Presbyopia Trial in San Salvador, Panamá (Alcon Fluid Accommodating Intraocular Lens, Top Con Autorefractor)

Active, not recruiting
  • Aphakia
  • Presbyopia
  • Alcon Fluid Accommodating Intraocular Lens
  • Top Con Autorefractor
  • San Salvador, El Salvador
  • +1 more
Jul 18, 2022

Refractive Accuracy of "2WIN" and Portable Autorefractors

Completed
  • Refractive Error - Myopia Axial
  • +4 more
  • "2WIN" Photoscreener
  • +2 more
  • Anchorage, Alaska
    Alaska Children's EYE & Strabismus
Jul 21, 2021

Cycloplegia Trial in Damieta (Cycloplegics)

Completed
  • Cycloplegia
  • Damieta, New Damietta, Egypt
    Ehab tharwat
Oct 14, 2022

Axial Length of the Globe on Retinal Nerve Fibre Thickness

Not yet recruiting
  • Myopia
  • Optical coherence tomography (OCT)
  • (no location specified)
Feb 6, 2023

Corneal Dystrophy, Macular Dystrophy, Hyperemesis Gravidarum - Severe Trial in Batman (Optic coherence tomography)

Completed
  • Corneal Dystrophy
  • +2 more
  • Optic coherence tomography
  • Batman, Turkey
    Batman education adn research hospital
Jun 25, 2023

Myopia Trial in San Francisco (Low-level Red Light Therapy Device)

Active, not recruiting
  • Myopia
  • Low-level Red Light Therapy Device
  • San Francisco, California
    University of California, San Francisco
Nov 2, 2022

Prevalence of Refractive Errors in Primary School Children

Not yet recruiting
  • Refractive Errors
  • cycloplegic refraction
  • (no location specified)
Mar 12, 2023

Myopia Trial in United States (MiSight 1 Day, Proclear 1 day)

Recruiting
  • Myopia
  • MiSight 1 Day
  • Proclear 1 day
  • Pittsburg, Kansas
  • +4 more
Aug 1, 2022

After Using ND: YAG LASER In Treatment of Posterior Capsular

Recruiting
  • Posterior Capsule Opacification
  • ND:YAG LASER
  • Sohag, Egypt
    Sohag university hospital
Aug 13, 2022

Myopia, Progressive Trial in Waterloo (Novel spectacle lens design)

Active, not recruiting
  • Myopia, Progressive
  • Novel spectacle lens design
  • Waterloo, Ontario, Canada
    Centre for Ocular Research and Education
Nov 3, 2022

Emmetropization, Myopia, Hyperopia Trial (DEFOG glasses(peripheral focus-out glasses))

Not yet recruiting
  • Emmetropization
  • +2 more
  • DEFOG glasses(peripheral focus-out glasses)
  • (no location specified)
Jan 10, 2023

Myopia, Progressive Trial in Shanghai (Photobiomodualtion Therapy, Single vision spectacles for correction myopia)

Recruiting
  • Myopia, Progressive
  • Photobiomodualtion Therapy
  • Single vision spectacles for correction myopia
  • Shanghai, Shanghai, China
    Eye & ENT hospital of Fudan university
Mar 7, 2023

Myopia, Progressive Trial in New York, Toronto (Single vision contact lenses, Multifocal contact lenses)

Recruiting
  • Myopia, Progressive
  • Single vision contact lenses
  • Multifocal contact lenses
  • New York, New York
  • +1 more
Dec 2, 2021

Refractive Errors Trial (astaxanthin 4 mg, astaxanthin 6 mg, Placebo)

Not yet recruiting
  • Refractive Errors
  • astaxanthin 4 mg
  • +2 more
  • (no location specified)
Aug 10, 2021

Fuchs' Corneal Endothelial Dystrophy in France

Not yet recruiting
  • Corneal Dystrophies
  • Genotyping
  • +2 more
  • Saint-Étienne, France
    Centre Hospitalier de Saint-Etienne
Feb 22, 2023

Keratoconus Trial in Assiut (Intrastromal corneal ring segment implantation (Pocket), Intrastromal corneal ring segment

Active, not recruiting
  • Keratoconus
  • Intrastromal corneal ring segment implantation (Pocket)
  • Intrastromal corneal ring segment implantation (Tunnel)
  • Assiut, Egypt
    Tiba Eye Center
Feb 19, 2023

Calculation of Intraocular Lens in High Myopic Cataractous Patients Trial (optical biometry, ultrasonic biometry)

Not yet recruiting
  • Calculation of Intraocular Lens in High Myopic Cataractous Patients
  • optical biometry
  • ultrasonic biometry
  • (no location specified)
Jul 4, 2021

Refractive Errors, Astigmatism Trial (EyeQue VisionCheck, Phoropter)

Not yet recruiting
  • Refractive Errors
  • Astigmatism
  • EyeQue VisionCheck
  • Phoropter
  • (no location specified)
Sep 6, 2023

Glaucoma, Cataract Senile Trial in Bangkoknoi (Humphrey visual field testing)

Completed
  • Glaucoma
  • Cataract Senile
  • Humphrey visual field testing
  • Bangkoknoi, Bangkok, Thailand
    Naris Kitnarong
Jan 28, 2022

Refractive Errors, Visual Impairment Trial in Islamabad (Educational intervention)

Completed
  • Refractive Errors
  • Visual Impairment
  • Educational intervention
  • Islamabad, Pakistan
  • +7 more
Sep 1, 2021

2WIN-S Portable Refractor Trial in Bangkok (2WIN-S portable refractor)

Active, not recruiting
  • 2WIN-S Portable Refractor
  • 2WIN-S portable refractor
  • Bangkok, Thailand
    Rajavithi Hospital
Nov 20, 2023

Myopia, Refractive Errors, Eye Diseases Trial in China (Low-level Red-light Therapy)

Active, not recruiting
  • Myopia
  • +2 more
  • Low-level Red-light Therapy
  • Foshan, Guangdong, China
  • +3 more
Jan 5, 2022

AMD, DR Trial in Tel Aviv (NOTAL-OCT V3.0)

Recruiting
  • AMD
  • DR
  • NOTAL-OCT V3.0
  • Tel Aviv, Israel
  • +1 more
Aug 2, 2022