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Found 51 studies with search of: Open Studies | "Refractive Errors"
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Rank Status Study
1 Not yet recruiting Eye Acceleration of Growth of Refractive Attributes
Conditions: Hyperopia;   Refractive Error
Interventions: Device: Simultaneous Vision Bifocal Soft Contact Lenses;   Device: Single Vision Soft Contact Lenses
2 Not yet recruiting Randomized Clinical Trial of Bifocal Lenses Versus Computer-Specific Progressive Addition Lenses
Conditions: Refractive Error;   Presbyopia;   Asthenopia;   Eyeglasses
Interventions: Device: D-28 bifocal lenses and frame;   Device: Progressive addition computer lenses and frame
3 Recruiting Comparative Study of Cycloplegic Refraction and Subjective Refraction With Fogging in School Age Children
Conditions: Myopia;   Refractive Error
Intervention:
4 Recruiting Does Undercorrection of Myopia Retard Myopia Progression Among Kindergarten Children?
Condition: Refractive Error - Myopia
Intervention: Drug: cyclopentolate
5 Recruiting 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
6 Recruiting Ocular Responses to Short and Long-Term Lens Wear
Condition: Ametropia
Interventions: Device: Balafilcon A Lenses with ReNu Multiplus;   Device: Balafilcon A Lenses with Optifree RepleniSH
7 Recruiting The Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study
Condition: Myopia
Intervention:
8 Not yet recruiting Guangzhou Outdoor Activity Longitudinal Study
Condition: Myopia
Intervention: Behavioral: Outdoor activity
9 Recruiting Ocular Response Analyzer Assessment of Intraocular Pressure and Corneal Biomechanical Properties in Myopic and Anisometropic Patients Under Atropine Treatment
Conditions: Myopia;   Anisometropia
Intervention:
10 Not yet recruiting Multicenter Evaluation of Safety and Effectiveness of Presbyopic LASIK for Hyperopes
Conditions: Presbyopia;   Hyperopia
Intervention: Procedure: LASIK
11 Not yet recruiting Daily Wear Corneal Infiltrative Event Study
Conditions: Myopia or Hyperopia;   Corneal Infiltrative Events
Intervention: Device: lotrafilcon A contact lenses
12 Recruiting Wavefront Analyses and Visual Performance of Three Multifocal Intra-Ocular Lenses
Conditions: Cataract;   Astigmatism
Interventions: Device: Tecnis implant;   Device: ReSTOR implant;   Device: ReZoom implant
13 Recruiting Retardation of Myopia in Orthokeratology
Condition: Myopia
Interventions: Device: Orthokeratology lenses, Menicon Z Night Lens;   Device: spherical plastic lenses
14 Recruiting Evaluating NeuroVision's Neural Vision Correction (NVC) Myopia Treatment
Condition: Myopia
Interventions: Device: NeuroVision's NVC treatment for Low Myopia;   Other: Control - No intervention
15 Recruiting Correction of Hyperopia in Children Study (CHICS)
Conditions: Hyperopia;   Farsightedness
Intervention: Device: Glasses for the correction of low to moderate farsightedness
16 Recruiting Safety and Effectiveness of the Akreos Toric Intraocular Lens.
Conditions: Cataract;   Astigmatism
Interventions: Device: Akreos Toric IOL;   Device: Akreos Advanced Optics Aspheric Intraocular Lens (Akreos AO)
17 Recruiting Enhancement of Emmetropization in Hyperopic Infants
Conditions: Hyperopia;   Hypermetropia;   Farsightedness
Intervention: Procedure: Refractive Correction
18 Recruiting Pilot Study of Neurovision to Improve Vision and Slow Myopia Progression in Children With Myopia
Condition: Myopia
Intervention: Device: NeuroVision
19 Recruiting Comparison of Cross-Cylinder Approach and Routine Method for Laser Correction of Astigmatism
Condition: Astigmatism
Intervention: Procedure: photorefractive keratectomy (PRK)
20 Recruiting Safety and Efficacy Study of 0.5%, 0.1% & 0.01% Atropine Treatment to Both Eyes In Treatment of Myopia In Children
Condition: Myopia
Intervention: Drug: Atropine Eye drops

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