Clinical trials: Hyperopia,
Ametropia, Myopia
Clinical Performance Evaluation of Two Frequent Replacement Silicone Hydrogel Toric Contact Lenses
The primary objective of this study is to evaluate the axis orientation of LID226397 toric contact lenses.
- Conditions
- Ametropia, Myopia, Hyperopia, Astigmatism
- Trial name
- NCT05959200
- Testing
- Serafilcon A toric contact lenses, Senofilcon A toric contact lenses, CLEAR CARE
- Where
- 7 sites in United States
- Volunteers
- 92 people
- Sponsor
- Alcon Research
Refractive Errors, Myopia
Safety and Suitability of ICL for Correction of Refractive Errors Without the Use of Dispersive OVDs
The goal of this observational study is to test whether surgeries for lenses designed to be implanted in the eye to correct refractive error can be done without the need for using viscoelastic substances that are used routinely…
- Conditions
- Refractive Errors, Myopia, Myopic Astigmatism, Hypermetropia
- Trial name
- NCT06371079
- Testing
- phakic intraocular lens implantation traditional, phakic intraocular lens implantation reduced OVD
- Where
- Iraq
- Volunteers
- 448 people
- Sponsor
- Loay Abdulmutalib Almusawi
Nearsightedness, Farsightedness
An Evaluation of LASIK, SMILE and PRK Surgery in Physicians
The principle investigator is evaluating self-reported quality of vision and quality of life in physicians undergoing LASIK, SMILE and PRK surgery.
- Conditions
- Nearsightedness, Farsightedness, Astigmatism
- Trial name
- NCT02576483
- Testing
- Questionnaire (QoV questionnaire)
- Where
- United States
- Volunteers
- 700 people, healthy volunteers welcome
- Sponsor
- Stanford University
Hyperopia, Presbyopia
The VIS Opti-K Low Vision Aid Device Provides Vision Improvement.
The VIS Opti-K Low Vision Aid device will be used to provide vision improvement to patients with refractive disorders (hyperopia and presbyopia).
- Trial name
- Opti-K Pres (NCT06597292)
- Testing
- Vision improvement
- Where
- 2 sites in United States, Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- VIS, Inc.
Myopia, Hyperopia
Performance Evaluation of Reusable Contact Lenses When Worn For One Month By Habitual Soft Contact Lens Wearers
The purpose of this study was to compare the clinical performance of two different reusable lenses in habitual spherical soft lens wearers.
- Trial name
- NCT06098339
- Testing
- Lens A (fanfilcon A), Lens B (lotrafilcon B)
- Where
- 3 sites in United States, Canada
- Volunteers
- 53 people
- Sponsor
- CooperVision, Inc.
Hyperopia, Hyperopic Astigmatism
Clinical Investigation of the WaveLight® EX500 Excimer Laser
The purpose of this study is to collect efficacy and safety data on the WaveLight EX500 excimer laser system for the correction of hyperopia with and without astigmatism by laser in situ keratomileusis (LASIK) treatment.
- Trial name
- NCT04805593
- Testing
- WaveLight EX500 excimer laser system, LASIK
- Where
- 5 sites in United States
- Volunteers
- 44 people
- Sponsor
- Alcon Research
Refractive Errors, Myopia
Air Optix® Night and Day® Aqua Daily Wear
The purpose of this Post-Market Clinical Follow-Up (PMCF) study is to assess long term performance and safety of Air Optix® Night and Day® Aqua (AONDA) contact lenses in a real-world setting when worn as daily wear for vision…
- Conditions
- Refractive Errors, Myopia, Hyperopia
- Trial name
- NCT05976750
- Testing
- Lotrafilcon A contact lenses, Balafilcon A contact lenses
- Where
- United States
- Volunteers
- 102 people
- Sponsor
- Alcon Research
Hyperopia
Enhancement of Emmetropization in Highly Hyperopic Infants
Infants do not usually wear glasses because they usually do not need them to see clearly. Most infants are born with a moderate amount of farsightedness.
- Trial name
- NCT03669146
- Testing
- Glasses
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Donald O Mutti, OD, PhD
Myopia, Hypermetropia
Comparison Between Myopia Versus Hypermetropia With Progressive Addition Lenses in Computer Users
This study examines how myopia (nearsightedness) and hyperopia (farsightedness) affect the use of progressive addition lenses (PALs) for computer users.
- Trial name
- NCT06484257
- Testing
- Myopia, Hypermetropia
- Where
- Pakistan
- Volunteers
- 64 people
- Sponsor
- Superior University
Presbyopia
A Dose-ranging Study to Evaluate the Safety and Efficacy of UNR844 in Subjects With Presbyopia.
Study of safety and efficacy of UNR844 in subjects with presbyopia.
- Trial name
- READER (NCT04806503)
- Testing
- UNR844
- Where
- 20 sites in United States, Australia and 2 more
- Volunteers
- 234 people
- Sponsor
- Novartis Pharmaceuticals
Myopia and Hyperopia and Presbyopia
Evaluation of Product Performance of a New Silicone Hydrogel Multifocal Contact Lens
The objective of this study is to evaluate the product performance of a new silicone hydrogel daily disposable multifocal contact lens, the Bausch + Lomb (kalifilcon A) Daily Disposable Multifocal Contact Lens, when worn by…
- Trial name
- NCT05660577
- Testing
- new silicone hydrogel daily disposable multifocal contact lens, the Bausch + Lomb (kalifilcon A) Daily Disposable Multifocal Contact Lens
- Where
- 20 sites in United States
- Volunteers
- 301 people
- Sponsor
- Bausch & Lomb Incorporated
Astigmatism, Far Sightedness
Clinical Results of a Monofocal Aspheric Bitoric Intraocular Lens With Plate Haptics in Hyperopic Eyes (HIPER-AT-TORBI)
Observational post-marketing study with prospective follow-up of CE marked medical devices aimed at the treatment of hyperopia and astigmatism in patients with cataract.
- Conditions
- Astigmatism, Far Sightedness, Cataracts
- Trial name
- HIPER-AT-TORBI (NCT05058274)
- Testing
- Implant of the AT-TORBI 709 lens
- Where
- 2 sites in Spain
- Volunteers
- 60 people
- Sponsor
- OFTALVIST (Oftalmología Vistahermosa S.L)
Partially Accommodative Esotropia
Medial Rectus Fenestration vs Recession for PAET
This prospective comparative study aims to compare medial rectus (MR) muscle fenestration and recession in patients with partially accommodative esotropia (PAET).
- Trial name
- NCT06298929
- Testing
- medial rectus fenestration, medial rectus recession
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Mansoura University
Hyperopia, Long Sight
Zimbabwe Eyecare And Learning(ZEAL):Formative Research on Hyperopia and Educational Outcomes in Primary School Children
The purpose of this study is to determine whether uncorrected or corrected long-sightedness (hyperopia) has an impact on reading skills, in Grade 2 or Grade 4 school-aged children from Mashonaland Central province of Zimbabwe…
- Trial name
- ZEAL (NCT05538182)
- Testing
- Spectacles
- Where
- Zimbabwe
- Volunteers
- 1,883 people, healthy volunteers welcome
- Sponsor
- Queen's University, Belfast
Myopia, Hyperopia
A Clinical Comparison of Two Soft Contact Lenses
The study objective was to gather short-term clinical performance data for two soft contact lenses.
- Trial name
- NCT05741450
- Testing
- Lens 1 (monthly replacement), Lens 2 (daily disposable)
- Where
- United Kingdom
- Volunteers
- 45 people
- Sponsor
- CooperVision, Inc.
Myopia, Hyperopia
Clinical Evaluation of Two Frequent Replacement Soft Spherical Contact Lenses
This was a single-blind (participant masked), interventional, prospective, direct refit, bilateral wear short-term fitting study.
- Trial name
- NCT05656885
- Testing
- Lens A, Lens B
- Where
- Spain
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Refractive Errors, Astigmatism
EyeQue VisionCheck 510(k) Clinical Trial
Demonstrate that refraction measurements from the device agree with refraction measurements from a phoropter within clinically meaningful limits.
- Trial name
- NCT06044688
- Testing
- EyeQue VisionCheck, Phoropter
- Volunteers
- 156 people, healthy volunteers welcome
- Sponsor
- EyeQue Corp.
Refractive Errors, Myopia
Pilot Clinical Performance of a Silicone Hydrogel Lens for Up to Six Nights of Extended Wear
The purpose of this clinical study is to evaluate the on-eye performance of an investigational soft contact lens compared to a commercially available soft contact lens when worn continuously for up to 1 week.
- Conditions
- Refractive Errors, Myopia, Hyperopia
- Trial name
- NCT04403542
- Testing
- Lehfilcon A contact lens, Comfilcon A contact lens
- Where
- 3 sites in United States
- Volunteers
- 36 people
- Sponsor
- Alcon Research
Refractive Ametropia, Hyperopia
Air Optix Night and Day Aqua (AONDA) Retrospective Study 1
The purpose of this study is to assess long term performance and safety of AONDA in a real world setting when worn as daily wear or continuous wear for vision correction.
- Conditions
- Refractive Ametropia, Hyperopia, Myopia
- Trial name
- NCT05790928
- Testing
- Lotrafilcon A spherical contact lenses
- Where
- 4 sites in United States
- Volunteers
- 108 people
- Sponsor
- Alcon Research
Hyperopia, Farsightedness
Correction of Farsightedness in Children Study
The Correction of Hyperopia In Children Study (CHICS) is a placebo-controlled, randomized, masked investigation of the effect of spectacle correction for moderate amounts of hyperopia on visual function, attention, and reading…
- Trial name
- CHICS (NCT00472212)
- Testing
- Spectacles, Control
- Where
- 4 sites in United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Ohio State University