refractive
Showing 26 - 50 of 1,517
2WIN-S Portable Refractor Trial in Bangkok (2WIN-S portable refractor)
Active, not recruiting
- 2WIN-S Portable Refractor
- 2WIN-S portable refractor
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Bangkok, ThailandRajavithi Hospital
Nov 20, 2023
Air Optix® Night and Day® Aqua Continuous Wear
Not yet recruiting
- Refractive Errors
- Lotrafilcon A contact lenses
- Balafilcon A contact lenses
- (no location specified)
Aug 8, 2023
Myopia, High Myopia Trial in Tianjin (Home training, School training)
Recruiting
- Myopia
- High Myopia
- Home training
- School training
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Tianjin, Tianjin, ChinaTiajin Eye Hospital
Jan 11, 2023
Myopia Trial in Columbus (Corneal Refractive Therapy-spherical, Corneal Refractive Therapy-aspherical)
Completed
- Myopia
- Corneal Refractive Therapy-spherical
- Corneal Refractive Therapy-aspherical
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Columbus, OhioThe Ohio State University College of Optometry
Jul 27, 2022
Myopia, Amblyopia, Hyperopia Trial (Fitz Frames 3-D Printed Glasses)
Not yet recruiting
- Myopia
- +3 more
- Fitz Frames 3-D Printed Glasses
- (no location specified)
Jan 9, 2023
Refractive Error Trial in Palo Alto, Draper (ELITA System)
Not yet recruiting
- Refractive Error
- ELITA System
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Palo Alto, California
- +1 more
Jan 25, 2023
Binocular Visual Acuity and Refractive Stability in Alcon
Completed
- Cataract
- Clareon
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Gainesville, GeorgiaGainesville Eye Associates
Sep 15, 2022
Refractive Ametropia Trial in Rochester (Kalifilcon Toric Lens, Total1 for Astigmatism, Precision1 for Astigmatism)
Completed
- Refractive Ametropia
- Kalifilcon Toric Lens
- +3 more
-
Rochester, New YorkBausch & Lomb, Incorporated
Oct 23, 2023
Refractive Errors, Satisfaction, Cornea Trial in London (LASIK, PRK, Phacoemulsification)
Completed
- Refractive Errors
- +3 more
- LASIK, PRK, Phacoemulsification
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London, United KingdomMoorfields Eye Hospital NHS Foundation Trust, 162 City Road
Apr 4, 2022
Cataract Trial in San José (Omega Refractive Capsule with an FDA approved Intraocular Lens, FDA approved Intraocular Lens)
Active, not recruiting
- Cataract
- Omega Refractive Capsule with an FDA approved Intraocular Lens
- FDA approved Intraocular Lens
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San José, Costa RicaClinica 20/20
Jun 14, 2022
Contact Lens Complication, Astigmatism, Refractive Errors Trial in Pittsburg, Coldwater (TOTAL30 for Astigmatism Contact Lenses)
Not yet recruiting
- Contact Lens Complication
- +2 more
- TOTAL30 for Astigmatism Contact Lenses
-
Pittsburg, Kansas
- +1 more
Sep 18, 2023
Refractive Errors, Accommodation Disorder Trial in Wroclaw
Active, not recruiting
- Refractive Errors
- Accommodation Disorder
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Wrocław, PolandDepartment of Optics and Photonics
Mar 27, 2022
After Contoura® Refractive Surgery Planned Using Phorcides
Completed
- Refractive Errors
- Phorcides Analytical Engine
-
Atlanta, Georgia
- +4 more
Feb 9, 2022
Eye Change Trial in Sohag (Using Oculus Pentacam® which is s a rotating Scheimpflug camera. The rotational measuring procedure
Recruiting
- Eye Change
- Using Oculus Pentacam® which is s a rotating Scheimpflug camera. The rotational measuring procedure generates Scheimpflug images in three dimensions.
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Sohag, EgyptFacultyof medicine
Nov 18, 2022
Refractive Errors, Aberration, Corneal Wavefront Trial in Wroclaw
Active, not recruiting
- Refractive Errors
- Aberration, Corneal Wavefront
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Wrocław, PolandDepartment of Optics and Photonics
Mar 27, 2022
Patients Developing Chronic Dry Eye After Refractive Surgery
Not yet recruiting
- Dry Eye
- FS-LASIK
-
Beijing, Beijing, ChinaPeking University Third Hospital
Oct 29, 2022
Visual Acuity in Pre-school Students
Not yet recruiting
- Visual Acuity
- +3 more
- Diagnostic Test: Distance Visual Acuity Examination
-
Alexandroupolis, Evros, GreeceDemocritus University of Thrace
Apr 18, 2023
Cataract, Glaucoma, Age Related Macular Degeneration Trial in Bharatpur (Community-based screening program, Cataract camp
Completed
- Cataract
- +4 more
- Community-based screening program
- +2 more
-
Bharatpur, Chitwan, NepalBharatpur Eye Hospital
Dec 15, 2022
Air Optix® Night and Day® Aqua Daily Wear
Not yet recruiting
- Refractive Errors
- +2 more
- Lotrafilcon A contact lenses
- Balafilcon A contact lenses
-
Fort Worth, TexasContact Alcon Call Center for Trial Locations
Jul 26, 2023
Cataract; Surgery; Phacoemulsification; Biometry; Intraocular Lens Power Trial in Rawalpindi (Biometry with Kane formula,
Completed
- Cataract; Surgery; Phacoemulsification; Biometry; Intraocular Lens Power
- Biometry with Kane formula
- Biometry with SRK-T formula
-
Rawalpindi, Punjab, PakistanFauji Foundation Hospital
Oct 31, 2022
Refractive Errors Trial (Multifocal D +2.50 add & 0.01% atropine)
Completed
- Refractive Errors
- Multifocal D +2.50 add & 0.01% atropine
- (no location specified)
Nov 14, 2022
Air Optix Plus HydraGlyde Multifocal Daily/Extended Wear Contact
Not yet recruiting
- Refractive Errors
- Lotrafilcon B multifocal soft contact lenses
- Comfilcon A multifocal soft contact lenses
- (no location specified)
May 24, 2023
Ocular Development and Refractive Error Changes Among Children
Active, not recruiting
- Myopia
-
Guangzhou, Guangdong, China
- +1 more
Mar 14, 2022
Peripapillary Atrophy to Diagnose Glaucoma in High Myopia
Not yet recruiting
- Myopia
- +4 more
- OCT imaging
-
Guangzhou, Guangdong, ChinaZhongshan Ophthalmic Center, Sun Yat-sen University
Jul 27, 2023