85 studies found for:    Open Studies | "Refractive Errors"
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Rank Status Study
1 Recruiting First-Sight Refractive Error Correction: Direct Comparison to Autorefraction Results in Children 7 to 18 Years of Age
Condition: Refractive Error
Intervention:
2 Recruiting Piggyback Sulcoflex Toric IOL for Correcting Refractive Error Following Corneal Transplantation
Conditions: Refractive Error;   Corneal Implantation;   Intraocular Lens Implantation
Interventions: Procedure: toric intraocular lens implantation;   Procedure: Sulcoflex intraocular lens implantation
3 Unknown  The Effect of Gabapentin (Neurentin) and Pregabalin (Lyrica) in Pain Reduction After Photorefractive Keratectomy
Condition: Refractive Errors
Intervention: Drug: Pregabalin
4 Recruiting Comparison of Intraocular Lens Power Calculation Methods After Corneal Laser Refractive Surgery in Axial and Refractive Ammertropia
Conditions: Cataract;   Refractive Errors
Intervention:
5 Not yet recruiting Optical Defocus to Stimulate Eye Elongation in Hyperopia
Conditions: Hyperopia;   Refractive Error
Interventions: Device: Simultaneous Vision Bifocal Soft Contact Lenses;   Device: Single Vision Soft Contact Lenses
6 Recruiting Effectiveness of a Marketed One-Step Peroxide Lens Care Solution in Symptomatic Contact Lens Wearers
Condition: Refractive Error
Interventions: Device: Hydrogen peroxide-based contact lens cleaning & disinfecting solution;   Device: Biguanide-preserved contact lens MPS;   Device: Subject's habitual contact lenses
7 Unknown  Safety and Efficacy Study to Evaluate the Treatment of Both Near and Distance Vision in a Simultaneous Laser Procedure
Conditions: Myopia;   Hyperopia;   Presbyopia;   Refractive Error
Intervention: Procedure: Supracor
8 Recruiting A Comparative Study of Two Daily Disposable Contact Lenses in Higher Myopia Subjects
Conditions: Refractive Error;   Myopia
Interventions: Device: Delefilcon A contact lens;   Device: Narafilcon A contact lens;   Device: Spectacles
9 Recruiting Corneal Staining Associated With Daily Disposable Beauty Contact Lenses
Condition: Refractive Error
Interventions: Device: 1Day Acuvue DEFINE (Vivid);   Device: SEED Eye Coffret 1-Day UV Rich Make;   Device: Ticon Cosmetic Daily Black
10 Recruiting DAILIES Total1® Lubricity Post Wear
Condition: Refractive Error
Intervention: Device: Delefilcon A contact lenses
11 Recruiting Tear Film Stability of DAILIES® AquaComfort Plus® Contact Lenses vs. MyDay® Daily Disposable Contact Lenses
Condition: Refractive Error
Interventions: Device: Nelfilcon A contact lenses;   Device: Stenfilcon A contact lenses
12 Recruiting Safety and Effectiveness of Wavefront-Guided LASIK Correction of Hyperopic Refractive Errors
Condition: Hyperopia
Intervention: Device: LASIK correction of hyperopic refractive errors
13 Unknown  The Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study
Condition: Myopia
Intervention:
14 Recruiting Safety and Effectiveness of Wavefront-guided LASIK for the Correction of Mixed Astigmatism
Condition: Astigmatism
Intervention: Device: LASIK
15 Recruiting The Efficacy and Safety of Periocular Acupoint Stimulation on Myopia Progression in Children
Condition: Myopia
Intervention: Device: massager
16 Not yet recruiting Myopia:the Role of Cone Opsin Mutations & Glasses That Control Axial Elongation
Condition: Myopia
Interventions: Other: Spectacles with red-blocking tint;   Other: Spectacles with holographic diffuser and color neutral tint;   Other: Spectacles with holographic diffuser and red-blocking tint;   Other: Spectacles with color neutral tint
17 Unknown  Intrastromal Correction of Ametropia by a Femtosecond Laser
Conditions: Presbyopia;   Myopia;   Hyperopia;   Astigmatism
Interventions: Device: Intrastromal Correction of Presbyopia;   Device: Intrastromal correction of Myopia;   Device: Intrastromal Correction of Hyperopia;   Device: Intrastromal Correction of Myopia incl. Astigmatism;   Device: Intrastromal Correction of Hyperopia incl. Astigmatism
18 Recruiting The Effectiveness of Portable Electronic Vision Enhancement Systems (p-EVES) for Near Vision in Visual Impairment
Condition: Moderate or Severe Vision Impairment, Both Eyes
Interventions: Procedure: portable electronic magnifier;   Procedure: optical aids
19 Unknown  Ocular Response Analyzer Assessment of Intraocular Pressure and Corneal Biomechanical Properties in Myopic and Anisometropic Patients Under Atropine Treatment
Conditions: Myopia;   Anisometropia
Intervention:
20 Recruiting Toric Eye Strain and Stability Study
Condition: Astigmatism
Interventions: Device: Etafilcon A;   Device: Etafilcon A Astigmatism

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Indicates status has not been verified in more than two years