refractive correction
Showing 1 - 25 of 2,131
Psychological Stress, Anesthesia, Anxiety Trial (Xenon, premedication hydroxyzine 25 mg)
Not yet recruiting
- Psychological Stress
- +3 more
- Xenon
- premedication hydroxyzine 25 mg
- (no location specified)
Oct 5, 2023
Refractive Errors, Myopic Astigmatism Trial in Cairo (Small Incision Lenticule Extraction (SMILE))
Recruiting
- Refractive Errors
- Myopic Astigmatism
- Small Incision Lenticule Extraction (SMILE)
-
Cairo, EgyptAl Watany Eye Hospital
Sep 25, 2023
Corneal Biomechanics of Patients Treated by Corneal Lenticule
Not yet recruiting
- Myopia
- Corneal lenticule extraction for advanced refractive correction (CLEAR)
-
Zurich, SwitzerlandIROC AG
Sep 29, 2021
Myopia, Astigmatism Trial (CLEAR)
Not yet recruiting
- Myopia
- Astigmatism
- CLEAR
- (no location specified)
Jul 29, 2022
Myopic Astigmatism Trial in China (CLEAR)
Recruiting
- Myopic Astigmatism
- CLEAR
-
Beijing, Bei-jing, China
- +3 more
Jan 26, 2022
Refractive Errors Trial in Freetown (Eyeglasses, Prescription slip)
Not yet recruiting
- Refractive Errors
- Eyeglasses
- Prescription slip
-
Freetown, Sierra LeoneInnovations for Poverty Action (IPA)
Sep 29, 2023
Errors of Refraction Among Primary School Children
Recruiting
- Error, Refractive
- Visual acuity measurement
-
Minya, Minia, EgyptFaculty of Medicine
Oct 7, 2022
Correction of Anisometropic Amblyopia in Children.
Recruiting
- Amblyopia
- +3 more
- Axial length measurement in millimeter (mm) by optical biometry device
- Autorefractometer to measure the refractive error in both eyes.
-
Banhā, Benha, EgyptAhmed Abdelshafy Tabl
Apr 5, 2022
Hyperopia Trial in United States (LASIK correction of hyperopic refractive errors)
Completed
- Hyperopia
- LASIK correction of hyperopic refractive errors
-
Los Angeles, California
- +8 more
Dec 7, 2021
Myopia, Astigmatism Trial in Worldwide (Cheetah System)
Recruiting
- Myopia
- Astigmatism
- Cheetah System
-
Rajajinagar, Bangalore, India
- +4 more
Mar 21, 2022
Astigmatism Trial in Manchester (Soft Toric Custom Made Contact lens, Soft Spherical Contact Lenses, Spectacle Correction)
Active, not recruiting
- Astigmatism
- Soft Toric Custom Made Contact lens
- +2 more
-
Manchester, United KingdomEurolens Research
May 4, 2022
Amblyopia, Healthy Trial (Vivid Vision Home, Refractive error correction)
Not yet recruiting
- Amblyopia
- Healthy
- Vivid Vision Home
- Refractive error correction
- (no location specified)
Apr 4, 2022
Panoptix Trifocal Lens in Post Refractive Myopic Laser Vision
Recruiting
- Cataract
- Refractive Errors
- PanOptix Trifocal Intraocular Lens
-
San Antonio, TexasParkhurst NuVision
Mar 15, 2021
Stable Myopic Refractive Error, With or Without Astigmatism Trial in United States (STAR S4 IR laser with iDesign)
Completed
- Stable Myopic Refractive Error, With or Without Astigmatism
- STAR S4 IR laser with iDesign
-
Camp Pendleton, California
- +6 more
Dec 7, 2021
Daily Disposable Multifocal Contact Lens is Intended for Use for the Correction of Refractive Ametropia (Myopia and Hyperopia)
Recruiting
- Daily Disposable Multifocal Contact Lens is Intended for Use for the Correction of Refractive Ametropia (Myopia and Hyperopia) and Presbyopia
- new silicone hydrogel daily disposable multifocal contact lens, the Bausch + Lomb (kalifilcon A) Daily Disposable Multifocal Contact Lens
-
San Diego, California
- +19 more
Dec 13, 2022
Presbyopia, Ametropia, Refractive Errors Trial (Artiflex Presbyopic implantation)
Not yet recruiting
- Presbyopia
- +4 more
- Artiflex Presbyopic implantation
- (no location specified)
Nov 16, 2020
Bilateral and Unilateral Amblyopia Treatment Study
Terminated
- Amblyopia
- Prescription glasses for bilateral amblyopia
- Prescription glasses for unilateral amblyopia
-
Elkins Park, PennsylvaniaSalus University
Aug 27, 2020
Myopia Trial in Guangzhou (New defocus spectacle lenses, Convenional aspheric single-vision spectacle lenses)
Not yet recruiting
- Myopia
- New defocus spectacle lenses
- Convenional aspheric single-vision spectacle lenses
-
Guangzhou, Guangdong, ChinaZhongshan Ophthalmic Center, Sun Yat-sen University
Feb 13, 2023
After Implantation With Two Different Multifocal Toric IOL:
Enrolling by invitation
- Cataract
-
Veszprém, HungaryRetinaszervíz
May 31, 2023
Myopia, Refractive Errors Trial in London (Small incision lenticule extraction, Tobramycin and dexamethasone, Ofloxacin)
Unknown status
- Myopia
- Refractive Errors
- Small incision lenticule extraction
- +4 more
-
London, United KingdomLondon Vision Clinic
Feb 21, 2020
Myopia, Phototherapy Trial in Cincinnati (BIOS Skyview Lamp, Aooshine Bedside Lamp)
Recruiting
- Myopia
- Phototherapy
- BIOS Skyview Lamp
- Aooshine Bedside Lamp
-
Cincinnati, OhioCincinnati Children's Hospital Medical Center
Oct 25, 2023
Cataract Senile, Astigmatism Trial in Lucerne (Marking of the intended axis of IOL-Implantation manually with an ink and marking
Not yet recruiting
- Cataract Senile
- Astigmatism
- Marking of the intended axis of IOL-Implantation manually with an ink and marking device on the surface of the eye
-
Lucerne, SwitzerlandEye Clinic, Cantonal Hospital of Lucerne
Mar 3, 2023
Refractive Error Trial in Safdarjung Enclave, Singapore (Cheetah femtosecond laser and Cheetah patient interface, IntraLase iFS
Recruiting
- Refractive Error
- Cheetah femtosecond laser and Cheetah patient interface
- +2 more
-
Rajajinagar, Bangalore, India
- +2 more
Jan 23, 2023
Amblyopia Trial in Hong Kong (Spectacles)
Recruiting
- Amblyopia
- Spectacles
-
Hong Kong, Guangdong, Hong KongCentre for Eye and Vision Research Limited
Jul 18, 2022
Hyperopia Trial in Columbus (Glasses)
Active, not recruiting
- Hyperopia
- Glasses
-
Columbus, OhioThe Ohio State University
Nov 12, 2021