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photo refraction

Showing 1 - 25 of 398
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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

Refractive Errors, Astigmatism Trial (EyeQue VisionCheck, Phoropter)

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

Refractive Transepithelial Photo-keratectomy in High Myopia

Completed
  • Ophthalmopathy
  • +2 more
    • Metz, France
      Centre Hospitalier Metz Thionville
    Jun 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

    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

    Cycloplegia Trial in Damieta (Cycloplegics)

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

    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

    Myopia, Myopia Progression, Juvenile Myopia Trial in United States (Spectacle Lenses)

    Not yet recruiting
    • Myopia
    • +2 more
    • Spectacle Lenses
    • Whittier, California
    • +8 more
    May 30, 2023

    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

    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

    New Barrett TAL Formula With Argos Measurements: A Multicenter

    Recruiting
    • Cataract
    • Argos
    • Encino, California
    • +5 more
    Oct 10, 2023

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

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

    Refractive Errors, Refractive Surgery Trial in Baghdad (Visumax Femto-flap, Sub Bowman's keratomileusis (SBK)-flap)

    Completed
    • Refractive Errors
    • Refractive Surgery
    • Visumax Femto-flap
    • Sub Bowman's keratomileusis (SBK)-flap
    • Baghdad, Iraq
      Eye Speciality private hospital
    Jul 19, 2021

    Grover's Disease, Psoriasis Vulgaris Trial in Chicago (Blue light phototherapy)

    Recruiting
    • Grover's Disease
    • Psoriasis Vulgaris
    • Blue light phototherapy
    • Chicago, Illinois
      Knute Martell
    Jun 8, 2022

    Calf Muscle Spasticity, Spastic Cerebral Palsy Trial in Hail (photo biostimulation)

    Not yet recruiting
    • Calf Muscle Spasticity
    • Spastic Cerebral Palsy
    • photo biostimulation
    • Hail, Saudi Arabia
      University of Hail
    Jun 20, 2023

    Mini-Monovision BetweenMonofocal andAdjustable Intraocular Lens

    Not yet recruiting
    • Cataract
    • Clareon Monofocal
    • Light-Adjustable Lens
    • Gainesville, Georgia
      Gainesville Eye Associates
    Nov 3, 2023

    Visual Acuity Trial in Manchester (JJVC Marketed Contact Lens)

    Completed
    • Visual Acuity
    • JJVC Marketed Contact Lens
    • Manchester, United Kingdom
      The University of Manchester
    Jul 11, 2022

    Cycloplegia Trial in Amman (Cyclopentolate, Tropicamide)

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

    Myopia, Hyperopia, Astigmatism Trial in Bloomington (Vision R-800 Phoropter, Standard Phoropter)

    Completed
    Has Results
    • Myopia
    • +3 more
    • Vision R-800 Phoropter
    • Standard Phoropter
    • Bloomington, Indiana
      Indiana University Clinical Optics Research Lab
    Feb 16, 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

    Corneal Neovascularization Trial in Indianapolis (30 minute photoactivation of riboflavin 0.1%, 10 minute photoactivation of

    Recruiting
    • Corneal Neovascularization
    • 30 minute photoactivation of riboflavin 0.1%
    • 10 minute photoactivation of riboflavin 0.1%
    • Indianapolis, Indiana
      Price Vision Group
    Jul 27, 2022

    Refractive Errors, Vision Disorders Trial in Newark (EQ103)

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

    A Pilot Study Using Photo-plethysmographic (PPG) Camera

    Completed
    • Infant Development
    • Photo-plethysmography monitoring
    • Orange, California
      Children's Hospital of Orange County
    Oct 28, 2022

    Oral Mucositis, Pediatric Cancer Trial in Riyadh (Curcumin, Laser)

    Not yet recruiting
    • Oral Mucositis
    • Pediatric Cancer
    • Riyadh, Ar Riyadh, Saudi Arabia
      Riyadh Elm University
    Sep 15, 2023