87 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 Recruiting Prospective S&E Study of Wavefront-guided PRK for Myopia With iDesign Advanced Wavescan Studio™ System and Star S4 IR™
Condition: Stable Myopic Refractive Error, With or Without Astigmatism
Intervention: Device: STAR S4 IR laser with iDesign
4 Recruiting Dispensing Study to Assess the Visual Performance of Optimised Prototype Contact Lenses
Conditions: Presbyopia;   Refractive Error
Interventions: Device: Etafilcon A;   Device: Nelfilcon A;   Device: Nesofilcon A;   Device: Somofilcon A
5 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 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
7 Recruiting ACUVUE® OASYS® 1-DAY vs DAILIES TOTAL1®
Condition: Refractive Error
Interventions: Device: Delefilcon A contact lenses;   Device: Senofilcon A contact lenses
8 Recruiting Clinical Evaluation of DAILIES TOTAL 1® Performance in a Japanese Population
Condition: Refractive Error
Interventions: Device: Delefilcon A contact lenses;   Device: Narafilcon A contact lenses
9 Recruiting Clinical Evaluation of ACUVUE® OASYS® 1-Day and ACUVUE® OASYS®
Condition: Refractive Error
Interventions: Device: Senofilcon A contact lenses with HydraLuxe™;   Device: Senofilcon A contact lenses
10 Not yet recruiting Measurement Repeatability in Contemporary Aberrometry
Condition: Refractive Errors
Interventions: Device: Peramis aberrometry;   Device: iDesign aberrometry
11 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%
12 Recruiting A New More Efficient Cycloplegia Scheme
Condition: Refractive Errors
Interventions: Drug: Cyclopentolate;   Drug: Cyclopentolate+tropicamide+phenylephrine
13 Unknown  Comparison of Intraocular Lens Power Calculation Methods After Corneal Laser Refractive Surgery in Axial and Refractive Ammertropia
Conditions: Cataract;   Refractive Errors
Intervention:
14 Unknown  The Effect of Gabapentin (Neurentin) and Pregabalin (Lyrica) in Pain Reduction After Photorefractive Keratectomy
Condition: Refractive Errors
Intervention: Drug: Pregabalin
15 Unknown  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)
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  The Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study
Condition: Myopia
Intervention:
18 Not yet recruiting Efficacy of Scleral Contact Lenses for Daily Wear for Regular and Irregular Refractive Errors Compared to Habitually Worn Scleral Lenses
Condition: Scleral Lens Wearers
Intervention: Device: scleral contact lens
19 Not yet recruiting Effect of Peripheral Defocus on Axial Growth in Hyperopes
Conditions: Hyperopia;   Amblyopia;   Anisohyperopia
Interventions: Device: Multifocal contact lenses;   Device: Single vision contact lenses
20 Not yet recruiting Safety, Tolerability, and Efficacy of PresbiDrops, a Topical Ophthalmic Drug for Presbyopia
Condition: Presbyopia
Interventions: Drug: PresbiDrops;   Drug: Placebo

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