Clinical trials: Refractive Assessment
Axial Myopia, Refractive Errors
Evaluation of Progression of Myopia in Children Treated With Vitamin B2 and Outdoor Sunlight Exposure
The investigators plan on using riboflavin (a Vitamin that can easily be taken orally each day) and having the children involved in the study play outside (where there is UV light created by the sun) in order to prevent the eye…
- Trial name
- NCT03552016
- Testing
- Oral Riboflavin
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Myopia, Astigmatism
On-Eye Evaluation of Contact Lens Axis Location
The purpose of this study was to evaluate the axis location of toric contact lenses after 3 minutes of wear. During this 1-visit study, each participant wore 3 pairs of study lenses of various design iterations (2-87-1, 2-87-2…
- Conditions
- Myopia, Astigmatism, Refractive Error
- Trial name
- NCT02100410
- Testing
- Delefilcon A toric contact lens T1, Delefilcon A toric contact lens T2, Delefilcon A toric contact lens T3
- Volunteers
- 50 people
- Sponsor
- Alcon Research
Primary Pterygium, Astigmatism
Preoperative and Postoperative Refractive and Topographic Evaluation in Patients With Primary Pterygium: Comparison of Two Surgical Techniques
This study evaluated changes in refractive status and corneal topography before and after surgical treatment of primary pterygium.
- Trial name
- RETOP (NCT07742995)
- Testing
- Conjunctival Autograft, Amniotic Membrane Transplantation
- Volunteers
- 78 people
- Sponsor
- Instituto de Oftalmología Fundación Conde de Valenciana
Dry Eye
A Study to Evaluate the Effect of Miebo™ on Preoperative Biometry/Keratometry and Postoperative Refractive Accuracy
A Phase 4, Multicenter, Open-Label Study to Evaluate the Effect of Miebo™ on Preoperative Biometry/ Keratometry and Postoperative Refractive Accuracy
- Trial name
- NCT06346340
- Testing
- Miebo
- Where
- 12 sites in United States
- Volunteers
- 97 people
- Sponsor
- Bausch & Lomb Incorporated
Myopia
Visual Outcomes And Contrast Sensitivity After Myopic Wavefront-Optimized Lasik With Nexisvision Shield Or Bandage Contact Lens
Evaluate visual outcomes and contrast sensitivity for subjects undergoing bilateral myopic LASIK with a Nexisvision Shield or bandage contact lens placed postoperatively.
- Trial name
- NCT01706237
- Testing
- Nexisvision shield
- Volunteers
- healthy volunteers welcome
- Sponsor
- Durrie Vision
Myopia
Evaluation of The Comfort of Orthokeratology Lenses Fit Using A New Software
As new orthokeratology fitting software emerges onto the market, it is of interest to assess their usefulness in guiding eye practitioners with lens fit.
- Trial name
- NCT05389072
- Testing
- control contact lens
- Where
- 4 sites in United States, Spain
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- CooperVision International Limited (CVIL)
Cataract, Astigmatism
Evaluation of the Accuracy & Safety of the LaserArcs Nomogram
Evaluation of the Accuracy and Safety of the LaserArcs Femtosecond Cataract Surgery Arcuate Incision Nomogram in Patients Undergoing Cataract Surgery and Astigmatism Reduction
- Trial name
- NCT05278442
- Testing
- LaserArc
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Research Insight LLC
Astigmatism
Prospective Evaluation of the Long-term Effectiveness of the Femtosecond Laser-assisted Arcuate Incisions
This clinical study is an open, controlled, prospective, single center, single-surgeon, post-market-clinical-follow-up study to evaluate the long-term (18 months) effectiveness of the femtolaser-assisted astigmatic keratotomy.
- Trial name
- NCT02164994
- Where
- Czechia
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Technolas Perfect Vision GmbH
Myopia
A Study to Evaluate the Product Performance of the PureVision®2 High Definition (HD) Contact Lens
The objective of this study is to evaluate the product performance of PureVision2 HD contact lenses.
- Trial name
- NCT01416142
- Testing
- PureVision2 HD contact lenses, Spectacles
- Where
- United States
- Volunteers
- 63 people
- Sponsor
- Bausch & Lomb Incorporated
Myopia
A One-Week Crossover Dispensing Evaluation of New Daily Wear Soft Contact Lenses
The purpose of this study is to validate the clinical performance of a new contact lens design when worn over a period 1 week compared to nelfilcon A (control).
- Trial name
- NCT03306641
- Testing
- Test Contact Lens, Nelfilcon A
- Where
- United States
- Volunteers
- 45 people
- Sponsor
- CooperVision, Inc.
Myopia
Exploratory Study on the Effect of SAT-001 on Choroidal Thickness in Pediatric Myopia Patients
This clinical trial aims to exploratively compare and evaluate the structural changes in the eye (specifically changes in choroidal thickness) pre- and post-treatment of the investigational medical devices ('SAT-001' and…
- Trial name
- NCT06729723
- Testing
- SAT-001, modified SAT-001
- Where
- 2 sites in South Korea
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- S-Alpha Therapeutics, Inc.
Ametropia
Comparison of Two Toric Contact Lenses on Current Toric Wearers
The purpose of this study is to evaluate and compare the clinical performance of two toric contact lenses amongst 110 subjects, 2-week, single masked (subject), daily wear, randomized, bilateral, crossover study; 4 weeks…
- Trial name
- NCT00639379
- Testing
- senofilcon A toric, alphafilcon A toric
- Where
- 7 sites in United States
- Volunteers
- 89 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Myopia; Astigmatism
Dispensing Evaluation of Investigational Contact Lenses
Non-randomized, single-masked, 2-visit, bilateral wear, single-arm dispensing study to evaluate the visual acuity, rotational performance, lens fit, stability and subjective characteristics of a senofilcon-based JJVCI…
- Trial name
- NCT02625220
- Testing
- Prototype toric lens senofilcon A
- Where
- 12 sites in United States
- Volunteers
- 177 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Myopia
Clinical Evaluation of a Myopia Control Lens in Slowing Myopia Progression.
This is a mono-centre, prospective, one-arm, unmask clinical trial to evaluate the effectiveness of test lens in slowing myopia progression with respect to axial length elongation compared to a single vision spectacle lens from…
- Trial name
- NCT05534022
- Testing
- Test myopia control lenses (BSL)
- Where
- Singapore
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Essilor International
Myopia
Evaluation of the CooperVision, Inc. Fanfilcon A and Enfilcon A Daily Wear Contact Lenses When Used for Frequent Replacement for up to One (1) Month of Daily Wear
This study is a masked, multi-center, daily wear, monthly replacement, bilateral, randomized, lens blocked (subjects remain in the same lens brand throughout the study) concurrent control study enrolling up to 90 subjects with a…
- Trial name
- NCT02555722
- Testing
- fanfilcon A (test), enfilcon A (control)
- Where
- 6 sites in United States
- Volunteers
- 92 people
- Sponsor
- CooperVision, Inc.
Cataract
Optimizing the Assessment of Refractive Outcomes After Cataract Surgery
The purpose of this study is to evaluate current available assessments (automated vs. manual) with which manifest refraction data and biometric variables are obtained to understand if data from an automated refractor can be…
- Trial name
- NCT02842151
- Testing
- Manifest refraction, ACRYSOF® IQ Monofocal IOL Model SN60WF, Topcon® KR-1W Wave-Front Analyzer
- Volunteers
- 162 people
- Sponsor
- Alcon Research
Myopia
Study Intended to Evaluate the Safety and Effectiveness of a Johnson & Johnson Vision Care Inc, (JJVCI) Contact Lens for Use on an Extended-wear Basis for up to 7 Days (6 Nights).
Study in the US intended to evaluate the safety and effectiveness of a Johnson \& Johnson Vision Care Inc, (JJVCI) contact lens for use on an extended-wear basis for up to 7 days (6 nights).
- Trial name
- NCT00241280
- Testing
- etafilcon A, galyfilcon A
- Where
- 25 sites in United States
- Volunteers
- 504 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
no Obvious Abnormalities, Diabetic Retinopathy (DR)
Retinal Clinical Assessment With AI-derived Quantitative Information
This randomized controlled trial evaluates whether providing clinicians with AI-derived quantitative retinal information improves the quality and efficiency of retinal clinical assessment.
- Conditions
- no Obvious Abnormalities, Diabetic Retinopathy (DR), AMD, Cup-to-disc Ratio Bigger Than 0.5
- Trial name
- NCT07291960
- Testing
- AI-derived retinal quantitative information-assisted reporting
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Beijing Tongren Hospital
Myopia
Study of Safety and Effectiveness of the Boston Orthokeratology Shaping Lens in the Arise Orthokeratology Lens
The objective of this orthokeratology study is to evaluate the safety and effectiveness of the Arise Orthokeratology Lens with non-spherical posterior peripheral curves
- Trial name
- NCT05984290
- Testing
- orthokeratology lens
- Where
- 6 sites in United States
- Volunteers
- 90 people
- Sponsor
- Bausch & Lomb Incorporated
Myopia
the Clinical Performance of the Oxysoft Daily Disposable Silicone Hydrogel Soft Contact Lens
The objective of this study is to demonstrate that the OxySoft silicone hydrogel soft contact lens could be prescribed as a supportive care for myopes.
- Trial name
- NCT03934788
- Testing
- oxysoft (olifilcon C), Si-Hy (olifilcon B)
- Where
- 3 sites in Taiwan
- Volunteers
- 36 people
- Sponsor
- Visco Vision Inc.