Clinical trials: Myopic Astigmatism
Myopic Astigmatism
STAAR Visian Toric ICL Post-Approval Study
The objective of this study is to evaluate the long term (i.e. 24 months) clinical performance of the Visian® Toric Implantable Collamer® Lens (ICL).
- Trial name
- TICL-PAS (NCT04516772)
- Testing
- Visian TICL
- Where
- 8 sites in United States
- Volunteers
- 125 people
- Sponsor
- Staar Surgical Company
Myopia
Evaluation of Alcon Ladarvision Wavefront-Guided PRK
The purpose of this study is to: 1. determine the safety of wavefront guided PRK 2. evaluate the efficacy of wavefront guided PRK 3. evaluate the differences in visual quality after treatment of wavefront guided PRK
- Trial name
- NCT00412295
- Testing
- Alcon Ladarvision (Wavefront-guided PRK)
- Where
- 2 sites in United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Walter Reed Army Medical Center
Myopia (Disorder), Astigmatism
Optical Quality of the Cornea in Orthokeratology
Analyzing Optical Quality After the Use of Overnight Orthokeratology (Ortho-K)
- Trial name
- COPCORTO (NCT06775509)
- Testing
- Ortho-K
- Where
- Spain
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Institut Investigacio Sanitaria Pere Virgili
Myopia, Hyperopia
Comparative Evaluation of Corneal Staining With Balafilcon A Lenses and Two Multi-Purpose Solutions
A new multi-purpose solution (MPS)was clinically evaluated against Opti-Free RepleniSH MPS at specific time points over the course of four days. The study was conducted with PureVision lenses.
- Conditions
- Myopia, Hyperopia, Astigmatism
- Trial name
- NCT01024855
- Testing
- RevitaLens OcuTec MPS (Investigational MPS) and Opti-Free RepleniSH MPS (control)
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Myopia, Astigmatism
Wavelight Plus Sightmap-LASIK vs. Wavefront-Optimized-LASIK
The goal of this clinical trial is to learn if the wavelight plus Sightmap (WLP) method or the wavefront-optimized (WFO) method for calculating LASIK customization treatment gives better vision, better satisfaction, and fewer…
- Trial name
- NCT07855094
- Testing
- LASIK calculated ablation using Wavefront-Optimized, wavelight plus Sightmap (WLP) Guided LASIK calculated
- Where
- United States
- Volunteers
- 49 people
- Sponsor
- 59th Medical Wing
Myopia, Astigmatism
New Treatment Algorithm to Reduce Spherical Aberration After LASIK Correction for Myopia
The purpose of this clinical trial is to demonstrate that treatments generated by an investigational algorithm reduces spherical aberration compared to currently available iDesign treatments.
- Trial name
- NCT01988415
- Testing
- VSS-Rx1 OPM vs Commercial iDesign Treatment
- Where
- Colombia
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Refractive Error, Myopia
Silicone Hydrogel Contact Lens Clinical and Comfort Benefits With a Multi-Purpose Disinfecting Solution
The purpose of this study was to compare lens comfort on Day 30 for Air Optix® lenses cared for with OPTI-FREE® PureMoist® (OFPM) Multi Purpose Disinfecting Solution (MPDS) compared to Acuvue® Oasys® lenses cared for with…
- Conditions
- Refractive Error, Myopia, Hyperopia, Astigmatism
- Trial name
- NCT01809197
- Testing
- Lotrafilcon B contact lenses, Senofilcon A contact lenses, OPTI-FREE PureMoist Multi-Purpose Disinfecting Solution (MPDS)
- Volunteers
- 387 people
- Sponsor
- Alcon Research
Keratomileusis, Laser In Situ
The Role of Psychosocial and Other Quality of Life Parameters in Evaluating Functional Changes Prior to and Following Laser In-situ Keratomileusis (LASIK)Changes Laser In-situ Keratomileusis (LASIK)
To evaluate the changes in quality of life parameters after LASIK surgery.
- Trial name
- NCT00344604
- Testing
- Role of psychosocial and quality of life parameters prior to and following LASIK.
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Myopia
Corneal Refractive Therapy Design Comparison for -4 to -6 Diopter Treatment for Overnight Wear for Myopia
The primary objective of this study is to compare the effectiveness of two proximity control geometry lens designs to treat eyes with pretreatment myopia between -4.00 and -6.00 D myopia with and without refractive astigmatism in…
- Trial name
- NCT05438615
- Testing
- Corneal Refractive Therapy-spherical, Corneal Refractive Therapy-aspherical
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- CooperVision International Limited (CVIL)
Myopia, Astigmatism
A Study to Evaluate the Safety and Effectiveness of the 217z Laser With Zyoptix for Lasik
A Study to demonstrate the safety and efficacy of wavefront laser refractive surgery treatments for myopia and astigmatism.
- Trial name
- NCT00347997
- Testing
- 217z Laser
- Volunteers
- healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Myopia
Development of a New Device and Method to Assess the Degree of Myopia and/or Astigmatism in Myopic People
The purpose of this clinical investigation is to check whether the new device can correctly measure a person's degree of myopia and astigmatism.
- Trial name
- MDSW_DiVA2Rx (NCT07297810)
- Testing
- Optical correction values obtained with investigational device and visual acuity, Optical correction values obtained with an autorefractometer and visual acuity, Optical correction values obtained with a phoropter and visual acuity
- Where
- France
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Essilor International
Myopia, Astigmatism
1-Week Dispensing Evaluation of Kalifilcon A Toric Contact Lenses Compared to Ultra for Astigmatism
This single-site, randomized, double-masked (participant and investigator), 2-way crossover, repeated-measures dispensing study evaluated the visual performance of kalifilcon A daily disposable toric (LD213001) contact lenses…
- Trial name
- NCT05320042
- Testing
- kalifilcon A daily disposable toric contact lenses, Ultra for Astigmatism (samfilcon A) contact lenses
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Astigmatism, Myopia
Evaluation of Two Daily Disposable Contact Lenses for Wearers With Astigmatism
The purpose of this trial is to compare the performance of two contact lenses for contact lens wearers with astigmatism.
- Trial name
- NCT01207466
- Testing
- Nelfilcon A investigational contact lens, Nelfilcon A commercial contact lens
- Volunteers
- 95 people
- Sponsor
- CIBA VISION
Cataract, Myopia
Evaluating the Effect of Laser Vision Surgery, Phakic Intraocular Lens Implantation, Cataract Surgery, and Pupil Dilation on the Iris Recognition Scanner Function of Smartphone
This study included patients who visit for refractive surgery (photorefractive keratectomy, photorefractive keratectomy with with corneal collagen cross linking, laser in situ keratomileusis, small incision lenticule extraction)…
- Conditions
- Cataract, Myopia, Myopic Astigmatism
- Trial name
- NCT02939001
- Testing
- iris recognition scanner
- Where
- South Korea
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Yonsei University
Refractive Errors
Changes in Angle Kappa and Corneal Back Elevations After Laser in Situ Keratomileusis in Myopic Astigmatism
Refractive errors and corneal astigmatism are associated with changes in angle kappa and corneal back elevation at the thinnest point in Pentacam.
- Trial name
- NCT06166212
- Volunteers
- 50 people
- Sponsor
- Ain Shams University
Myopia, Astigmatism
SMILE vs. LASIK Using Contoura With Phorcides
Subjects will undergo SMILE surgery in one eye and LASIK using Contoura with Phorcides on the contralateral eye to correct myopia.
- Trial name
- NCT05844397
- Testing
- WaveLight EX500 Excimer Laser System, VisuMax Surgical Laser
- Where
- United States
- Volunteers
- 56 people
- Sponsor
- 59th Medical Wing
Myopia, Astigmatism
Early Changes Between Lenticule Extraction and Small-Incision Lenticule Extraction
The aim is to evaluate the short-term changes in ocular surface measures and tear inflammatory mediators after lenticule extraction (FLEx) and small-incision lenticule extraction (SMILE) procedures.
- Trial name
- NCT02540785
- Testing
- lenticule extraction, small-incision lenticule extraction
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Myopia, Hyperopia
Complete Easy Rub Comparative Efficacy Study
The aim of this trial is to assess Complete Easy Rub compared to a competitor multi-purpose solution in terms of lens cleanliness, subjective response and ocular response, when lenses are worn bilaterally on a daily wear basis…
- Conditions
- Myopia, Hyperopia, Astigmatism
- Trial name
- NCT01019564
- Testing
- Complete Easy Rub Formula MPS, Aquify MPS
- Volunteers
- healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Myopia, Moderate, Myopic Astigmatism
A Prospective, Randomized Clinical Study of Two Phakic Toric Implantable Lenses
Primary Objective: To compare the efficacy and the residual refractive error of EYECRYLTM Phakic toric versus Visian® Toric ICL in moderate to high myopic patient with co-existing astigmatism.
- Conditions
- Myopia, Moderate, Myopic Astigmatism, Myopia, Degenerative
- Trial name
- NCT06839898
- Testing
- EYECRYLTM Phakic Toric Intraocular Lens Treatment Arm, Visian® Toric ICL Treatment Arm
- Where
- 4 sites in Germany, India
- Volunteers
- 172 people
- Sponsor
- Biotech Healthcare Holding Gmbh
Myopia, Astigmatism
Wavefront-guided PRK vs Wavefront-optimized PRK
The purpose of the study is to compare the results of PRKK surgery when using wavefront-guided excimer laser treatment compared to wavefront optimized excimer laser treatment in patients with nearsightedness with and without…
- Trial name
- NCT02091934
- Testing
- Wavefront-guided PRK, Wavefront-optimized PRK
- Where
- United States
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- Stanford University