82 studies found for:    Open Studies | "Refractive Errors"
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Rank Status Study
1 Unknown  First-Sight Refractive Error Correction: Direct Comparison to Autorefraction Results in Children 7 to 18 Years of Age
Condition: Refractive Error
Intervention:
2 Unknown  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 Not yet recruiting Dispensing Study to Assess the Visual Performance of Optimised Prototype Contact Lenses
Conditions: Presbyopia;   Refractive Error
Interventions: Device: Etafilcon A;   Device: Lotrafilcon B;   Device: Nelfilcon A;   Device: Delefilcon A
4 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
5 Recruiting Bifocal Lenses In Nearsighted Kids
Condition: Refractive Errors
Interventions: Device: Biofinity Multifocal D +1.50 add;   Device: Biofinity Multifocal D +2.50 add;   Device: Biofinity
6 Not yet recruiting DAILIES TOTAL1® - Comparative Assessment of Tear Film Evaporation
Condition: Refractive Error
Interventions: Device: Delefilcon A contact lenses;   Device: Narafilcon A contact lenses;   Device: Somofilcon A contact lenses;   Other: No intervention
7 Recruiting Clinical Evaluation of MyDay™ and 1-DAY ACUVUE® TruEye®
Condition: Refractive Error
Interventions: Device: Stenfilcon A contact lenses;   Device: Narafilcon A contact lenses
8 Not yet recruiting VisuMax Femtosecond Laser Small Incision Lenticule Extraction for the Correction of High Myopia
Conditions: Myopia;   Refractive Errors
Interventions: Procedure: Small incision lenticule extraction;   Drug: Tobramycin and dexamethasone;   Drug: Ofloxacin;   Drug: Proxymetacaine 0.5%;   Drug: Oxybuprocaine 0.4%
9 Recruiting A New More Efficient Cycloplegia Scheme
Condition: Refractive Errors
Interventions: Drug: Cyclopentolate;   Drug: Cyclopentolate+tropicamide+phenylephrine
10 Recruiting Comparison of Intraocular Lens Power Calculation Methods After Corneal Laser Refractive Surgery in Axial and Refractive Ammertropia
Conditions: Cataract;   Refractive Errors
Intervention:
11 Unknown  The Effect of Gabapentin (Neurentin) and Pregabalin (Lyrica) in Pain Reduction After Photorefractive Keratectomy
Condition: Refractive Errors
Intervention: Drug: Pregabalin
12 Recruiting Corneal Epithelium Repair and Therapy Using Autologous Limbal Stem Cell Transplantation
Conditions: Corneal Disease;   Pterygium;   Myopia;   Hyperopia
Interventions: Procedure: LSCs and amniotic membrane (Modified Technique);   Procedure: Amniotic membrane only (Traditional Technique);   Procedure: PRK, LSCs, and amniotic membrane (Modified Technique);   Procedure: PRK only (Traditional Technique);   Drug: Levofloxacin;   Drug: Betamethasone;   Drug: Limbal stem cells (LSCs)
13 Recruiting The Efficacy and Safety of Periocular Acupoint Stimulation on Myopia Progression in Children
Condition: Myopia
Intervention: Device: massager
14 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
15 Unknown  The Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study
Condition: Myopia
Intervention:
16 Not yet recruiting A Comparison of Two Devices for Measuring the Central Thickness of the Cornea Before and After Surgery (CECOT)
Condition: Disorders, Refractive
Intervention: Device: Central corneal thickness measurement
17 Not yet recruiting Comparison of Corneal Stromal Tissue Consumption (LATAC)
Condition: Disorders, Refractive
Intervention: Device: Measurement of stromal tissue ablation
18 Not yet recruiting Investigation of AcrySof® IQ PanOptix™ Presbyopia-Correcting Intraocular Lens (IOL) Model TFNT00
Condition: Cataract
Intervention: Device: AcrySof® IQ PanOptix™ Presbyopia-Correcting IOL
19 Not yet recruiting A Study to Evaluate the Safety and Efficacy of EV06 Ophthalmic Solution in Improving Vision in Subjects With Presbyopia
Condition: Presbyopia
Interventions: Drug: EV06 (Lipoic Acid Choline Ester, 1.5%);   Drug: Placebo
20 Recruiting Conventional Surgery vs. Verion/VerifEye
Conditions: Cataract;   Astigmatism
Interventions: Device: Conventional;   Device: Verion

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Indicates status has not been verified in more than two years