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Spherical aberration

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Myopia, Myopic Astigmatism, Presbyopia Trial in London (HiSMILE treatment option)

Not yet recruiting
  • Myopia
  • +2 more
  • HiSMILE treatment option
  • London, United Kingdom
    London Vision Clinic
Jan 4, 2023

FS-LASIK Surgery Effect on Higher Order Aberrations Trial in Cairo (LASIK refractive surgery)

Not yet recruiting
  • FS-LASIK Surgery Effect on Higher Order Aberrations
  • LASIK refractive surgery
  • Cairo, Egypt
    Kasr Al Ainy
Jul 14, 2021

Cataract Trial in Cairo (phacoemulsification with intraocular lens implantation, ocular aberrometer assesment)

Recruiting
  • Cataract
  • phacoemulsification with intraocular lens implantation
  • ocular aberrometer assesment
  • Cairo, Egypt
    facultyof medicine, Cairo university
Jan 11, 2021

Pseudophakia Trial in Houston (Visual Acuity, Biometric Data Collection, Patient Questionnaire)

Completed
  • Pseudophakia
  • Visual Acuity
  • +2 more
  • Houston, Texas
    Berkeley Eye Center
Nov 7, 2022

Contact Lens Wearer Trial in Rochester (kalifilcon A Daily Disposable Toric LD213001 lens in SKUs +6D, +3D, 0D, -3D, -6D, and

Completed
  • Contact Lens Wearer
  • kalifilcon A Daily Disposable Toric LD213001 lens in SKUs +6D, +3D, 0D, -3D, -6D, and -9D
  • Rochester, New York
    Bausch and Lomb Site 01
Nov 10, 2021

Pseudophakia Trial in Houston (Visual Acuity, Defocus Curve, Intraocular Lens Satisfaction (IOLSAT) Questionnaire)

Recruiting
  • Pseudophakia
  • Visual Acuity
  • +5 more
  • Houston, Texas
    Berkeley Eye Center
Sep 26, 2023

Cataract, Presbyopia Trial in Hershey (Extended Vision IOL, Neutral Aspheric Monofocal IOL)

Completed
  • Cataract
  • Presbyopia
  • Extended Vision IOL
  • Neutral Aspheric Monofocal IOL
  • Hershey, Pennsylvania
    Penn State Hershey Medical Center Eye Center
Jan 14, 2023

Contoura vs Wavefront Optimized Ablation

Not yet recruiting
  • Astigmatism
  • Laser assisted in-situ keratomileusis
  • Photorefractive keratectomy
  • (no location specified)
Apr 24, 2023

Optical Quality During the Peak of the Covid-19 Pandemic

Completed
  • Corneal Wavefront Aberration
  • SARS-CoV-2
    • Tianjin, Tianjin, China
      Tianjin Eye Hospital
    May 27, 2023

    Patient Reported Satisfaction With Contoura LASIK Utilizing

    Not yet recruiting
    • Myopia
    • Contoura LASIK
    • Houston, Texas
      Mann Eye Institute
    Apr 28, 2023

    Evaluation of Cataract Surgery Outcome

    Recruiting
    • Cataract
    • High Myopia
      • Shanghai, Shanghai, China
        Eye and ENT Hospital of Fudan University
      Aug 18, 2021

      Visual Acuity Trial in Waterloo (etafilcon A, Habitual Orthokeratology Lenses)

      Completed
      Has Results
      • Visual Acuity
      • etafilcon A
      • Habitual Orthokeratology Lenses
      • Waterloo, Ontario, Canada
        Centre for Ocular Research & Education
      Dec 16, 2021

      Keratomileusis, Laser In Situ, Contrast Sensitivity Trial in Taipei (Topoguided LASIK, Wavefront optimized LASIK)

      Completed
      • Keratomileusis, Laser In Situ
      • Contrast Sensitivity
      • Topoguided LASIK
      • Wavefront optimized LASIK
      • Taipei, Taiwan
        Taipei Nobel Eye Clinic
      Jun 3, 2021

      Successful Premium Trifocal Intra-ocular Lenses Implantation

      Active, not recruiting
      • Presbyopia
      • Low Vision
      • Patient Reported Outcomes / Biometric data revision
      • Lisboa, Portugal
        Hospital dos Lusíadas
      May 17, 2023

      Visual Quality Trial in Guangdong

      Recruiting
      • Visual Quality
        • Guangdong, Guangzhou, China
          First Affiliated Hospital of Jinan University
        Jun 16, 2021

        Lens Implantation, Intraocular Trial in Heidelberg, Kaunas (Cataract surgery, Eyedeal® Model PX65AS1 IOL)

        Not yet recruiting
        • Lens Implantation, Intraocular
        • Cataract surgery
        • Eyedeal® Model PX65AS1 IOL
        • Heidelberg, Baden-Wuerttemberg, Germany
        • +1 more
        Mar 20, 2023

        Intraocular Lens Centration and Tilt on Visual Performance With

        Not yet recruiting
        • Cataract
        • Lenses, Intraocular
        • No intervention
        • Jacksonville, Florida
          East Coast Institute for Research
        Apr 24, 2023

        Visual To Compare the Visual Outcome Between AcrySof™ IQ Vivity™ and TECNIS Synergy™ Intraocular Lens (Model ZFR00V ) Trial in

        Recruiting
        • Visual To Compare the Visual Outcome Between AcrySof™ IQ Vivity™ and TECNIS Synergy™ Intraocular Lens (Model ZFR00V )
        • IOL implantation
        • Cairo, Egypt
          Cairo University
        Dec 11, 2022

        Anterior Corneal Optical Aberration Induced by CK and Hyperopic

        Unknown status
        • Refractive Error
        • CK surgery
        • Shanghai, Shanghai, China
          Shanghai Guanghua Integrated Traditional Chinese and Western Med
        Dec 15, 2020

        Loss of Visual Contrast Sensitivity, Near Vision, Visual Impairment Trial in Kuwait (phacoemulsification with implantation of

        Completed
        • Loss of Visual Contrast Sensitivity
        • +2 more
        • phacoemulsification with implantation of presbyopia correcting IOL
        • Kuwait, Kuwait
          Daralshifa hospital
        May 25, 2021

        Cataract, Refractive Lens Exchange Trial in Alicante (HECATE)

        Recruiting
        • Cataract
        • Refractive Lens Exchange
        • HECATE
        • Alicante, Spain
          Dr. Pedro Tañá Rivero
        Nov 1, 2023

        Myopia Trial in Tianjin (Orthokeratology with aspheric wide inversion zone design in the optical zone, Orthokeratology with

        Completed
        • Myopia
        • Orthokeratology with aspheric wide inversion zone design in the optical zone
        • Orthokeratology with traditional spherical design in the optical zone
        • Tianjin, China
          Tianjin Eye Hospital
        Jul 14, 2023

        Monofocal Extended Range of Vision (MERoV) Study

        Recruiting
        • Pseudophakia
        • +2 more
          • Brighton, United Kingdom
            Mayank Nanavaty
          Mar 16, 2022

          Nearsightedness, Astigmatism Trial in Palo Alto (LASIK)

          Active, not recruiting
          • Nearsightedness
          • Astigmatism
          • LASIK
          • Palo Alto, California
            Stanford University School of Medicine
          Nov 6, 2021

          Progression of Pediatric Keratoconus.

          Completed
          • Keratoconus
          • +2 more
          • Transepithelial Corneal Collagen Cross-linking
          • Scheimpflug camera
          • Banhā, Benha, Egypt
            Ahmed Abdelshafy Tabl
          Oct 29, 2021