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Refraction

Showing 1 - 25 of 1,029
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Myopia, Myopia, Moderate, Astigmatism Trial in Beijing (Software refraction with Eye Test Technology in a mobilerone,

Recruiting
  • Myopia
  • +2 more
  • Software refraction with Eye Test Technology in a mobilerone
  • Retinoscopy
  • Beijing, Beijing, China
  • +2 more
Sep 21, 2023

Programmed Using Manifest Refraction Verses Using Phorcides

Not yet recruiting
  • Myopia
  • Astigmatism
  • Contoura LASIK with Phorcides planning strategy
  • Contoura LASIK with manifest refraction planning strategy
  • Bismarck, North Dakota
    Bismarck Lasik
May 25, 2023

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

Cycloplegia, Refractive Errors, Esotropia Trial in Irbid, Doha (Cyclopentolate, Tropicamide)

Recruiting
  • Cycloplegia
  • +3 more
  • Irbid, Jordan
  • +1 more
Oct 5, 2023

Errors of Refraction Among Primary School Children

Recruiting
  • Error, Refractive
  • Visual acuity measurement
  • Minya, Minia, Egypt
    Faculty of Medicine
Oct 7, 2022

Refractive Errors, Myopia, Myopic Astigmatism Trial in Cairo (Refractive Surgery)

Recruiting
  • Refractive Errors
  • +2 more
  • Refractive Surgery
  • Cairo, Egypt
    Alwatany Eye Hospital
Jan 1, 2023

Cycloplegia Trial in Amman (Cyclopentolate, Tropicamide)

Completed
  • Cycloplegia
  • Amman, Jordan
    Islamic Hospital
Jun 28, 2022

Clinical Investigation of Refraction Techniques

Recruiting
  • Refractive Error
  • Refractive Technique (MR #1)
  • Refractive Technique (MR #2)
  • Birtinya, Queensland, Australia
    Sunshine Eye Clinic
Aug 8, 2022

Visual Impairment, Myopia, Hyperopia Trial in Newark (With Try-on glasses)

Completed
  • Visual Impairment
  • +3 more
  • With Try-on glasses
  • Newark, California
    EyeQue
Jan 20, 2023

Pseudophakia, Myopia, Hyperopia Trial in Pristina (Relex Smile, Relex smile with fresh corneal lenticule implantation)

Enrolling by invitation
  • Pseudophakia
  • +2 more
  • Relex Smile
  • Relex smile with fresh corneal lenticule implantation
  • Pristina, Kosovo
    Eye Hospital Pristina
Jul 25, 2022

Age and Refraction in Predicting Myopia Progression in COVID-19

Completed
  • Refraction Error
  • Myopia
  • screening
  • Tianjin, China
    Tianjin Eye Hospital
Mar 29, 2022

Down Syndrome, Refractive Errors Trial in Columbus, Houston (Dilated Refraction, Non-Dilated Refraction)

Recruiting
  • Down Syndrome
  • Refractive Errors
  • Dilated Refraction
  • Non-Dilated Refraction
  • Columbus, Ohio
  • +1 more
May 10, 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

Eye Diseases, Ametropia Trial in Paris (SiVIEW software, Expert)

Not yet recruiting
  • Eye Diseases
  • Ametropia
  • SiVIEW software
  • Expert
  • Paris, France
    Ophthalmological Foundation A. de Rothschild
May 4, 2022

Cataract Trial in Austria, Germany, Netherlands (remote monitoring after cataract surgery)

Recruiting
  • Cataract
  • remote monitoring after cataract surgery
  • Vienna, Austria
  • +5 more
Aug 16, 2022

Individuals With Eye Refraction Defects Trial (Eye exercises)

Not yet recruiting
  • Individuals With Eye Refraction Defects
  • Eye exercises
  • (no location specified)
Aug 13, 2023

Prevalence of Refractive Errors in Primary School Children

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

Refractive Errors Trial (Mobile medical application to self administer a subjective refraction test, Standard of care refraction

Not yet recruiting
  • Refractive Errors
  • Mobile medical application to self administer a subjective refraction test
  • Standard of care refraction test
  • (no location specified)
Sep 15, 2021

Strabismus Trial (moderate to deep neuromuscular blockade, shallow to minimal neuromuscular blockade)

Not yet recruiting
  • Strabismus
  • moderate to deep neuromuscular blockade
  • shallow to minimal neuromuscular blockade
  • (no location specified)
May 31, 2023

Refractive Errors Trial in Hyderabad (Free near and Distance Vision glasses)

Not yet recruiting
  • Refractive Errors
  • Free near and Distance Vision glasses
  • Hyderabad, Telangana, India
    L V Prasad Eye Institute
Nov 8, 2022

Refractive Errors, Vision Disorders Trial in Newark (EQ103)

Recruiting
  • Refractive Errors
  • Vision Disorders
  • EQ103
  • Newark, California
    EyeQue
Jan 5, 2022

The Long-term Outcome After Toric Intraocular Lens Implantation

Not yet recruiting
  • Corneal Astigmatism
  • Cataract
  • subjective refraction
  • (no location specified)
Jul 16, 2022

Performance of Two Sclera Fixated Intraocular Lens Concepts

Enrolling by invitation
  • Cataract Complicated
  • Cataract Complications Operations
  • IOL Master 700
  • +5 more
  • Linz, Oberösterreich, Austria
    Department for Ophthalmology and Optometry, Kepler University Ho
Mar 9, 2023

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

Secondary Cataract Surgery, Aphakia, Complicated Cataract Surgery Trial in Linz (IOL Master 700, Casia-2, MS-39)

Recruiting
  • Secondary Cataract Surgery
  • +2 more
  • IOL Master 700
  • +6 more
  • Linz, Upper Austria, Austria
  • +1 more
Jun 12, 2023