85 studies found for:    Open Studies | "Refractive Errors"
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Rank Status Study
21 Recruiting Clinical Efficacy of the Pinhole Soft Contact Lenses for Correcting Presbyopia
Condition: Presbyopia
Intervention: Device: Pinhole Soft Contact Lens apply for presbyopia
22 Not yet recruiting A Study of the Concurrent Use of AGN-190584 and AGN-199201 in Participants With Presbyopia
Condition: Presbyopia
Interventions: Drug: AGN-199201 ophthalmic solution;   Drug: AGN-190584 ophthalmic solution;   Drug: AGN-190584 vehicle;   Drug: AGN-199201 + AGN-190584 Combination;   Drug: AGN-199201 vehicle
23 Recruiting Pilot Study of Accommodative/Vergence Therapy to Modify Accommodative Function in Children With Myopia
Condition: Myopia
Intervention: Other: accommodative/vergence therapy
24 Recruiting An Evaluation of LASIK Surgery in Physicians
Conditions: Nearsightedness;   Farsightedness;   Astigmatism
Intervention: Behavioral: Questionnaire (QoV questionnaire)
25 Recruiting High Resolution Wavefront-guided vs. Wavefront Optimized LASIK
Conditions: Nearsightedness;   Astigmatism
Intervention: Procedure: LASIK
26 Recruiting Evaluation of the Efficacy and Safety of PRX-100 in the Treatment of Early to Moderate Presbyopia
Condition: Presbyopia
Interventions: Drug: PRX-100;   Drug: Placebo
27 Recruiting Early Changes Among FLEx, LASIK and FS-LASIK
Conditions: Myopia;   Astigmatism
Interventions: Procedure: lenticule extraction;   Procedure: laser in situ keratomileusis;   Procedure: FS assisted laser in situ keratomileusis
28 Recruiting Changes Between Lenticule Extraction and Femtosecond Laser-assisted Laser in Situ Keratomileusis
Conditions: Myopia;   Astigmatism
Interventions: Procedure: lenticule extraction;   Procedure: femtosecond laser-assisted laser in situ keratomileusis
29 Not yet recruiting Echothiophate Iodide for the Prevention of Progression of Myopia
Condition: Myopia
Interventions: Drug: Echothiophate Iodide 0.03% Ophthalmic Solution;   Drug: Carboxymethylcellulose Sodium (0.5%)
30 Recruiting Investigation of AcrySof® IQ PanOptix™ Presbyopia-Correcting Intraocular Lens (IOL) Model TFNT00
Condition: Cataract
Intervention: Device: AcrySof® IQ PanOptix™ Presbyopia-Correcting IOL
31 Recruiting Conventional Surgery vs. Verion/VerifEye
Conditions: Cataract;   Astigmatism
Interventions: Device: Conventional;   Device: Verion
32 Recruiting Clinical Evaluation of the Lenstec SBL-3 Multifocal Intraocular Lens
Conditions: Cataracts;   Presbyopia
Interventions: Device: SBL-3 multifocal intraocular lens;   Device: Control monofocal intraocular lens
33 Not yet recruiting Scleral Versus Corneal RGP Contact Lenses in Irregular Cornea Disorders
Conditions: Irregular; Contour of Cornea;   Keratoconus;   Pellucid Marginal Corneal Degeneration;   Injury of Cornea;   Irregular Astigmatism
Interventions: Device: Scleral rigid gas permeable contact lenses (Zenlens™);   Device: Corneal lenses (Rose K2)
34 Recruiting Presbyopia Compensation: Looking for Electrophysiological Predictors
Condition: Presbyopia
Intervention: Device: contact lenses
35 Recruiting Inherited Retinal Degenerative Disease Registry
Conditions: Eye Diseases Hereditary;   Retinal Disease;   Achromatopsia;   Bardet-Biedl Syndrome;   Bassen-Kornzweig Syndrome;   Batten Disease;   Best Disease;   Choroidal Dystrophy;   Choroideremia;   Cone Dystrophy;   Cone-Rod Dystrophy;   Congenital Stationary Night Blindness;   Enhanced S-Cone Syndrome;   Fundus Albipunctatus;   Goldmann-Favre Syndrome;   Gyrate Atrophy;   Juvenile Macular Degeneration;   Kearns-Sayre Syndrome;   Leber Congenital Amaurosis;   Refsum Syndrome;   Retinitis Pigmentosa;   Retinitis Punctata Albescens;   Retinoschisis;   Rod-Cone Dystrophy;   Rod Dystrophy;   Rod Monochromacy;   Stargardt Disease;   Usher Syndrome
Intervention:
36 Recruiting Functional Assessment of Activities of Daily Living (ADL) in Patients Who Underwent Mini-monovision Correction
Condition: Presbyopia
Intervention: Other: Assessment of visual capacity
37 Recruiting Rotational Stability After Nanoflex Collamer Toric Intraocular Lens Implantation in Astigmatic Patients
Condition: Astigmatism
Interventions: Procedure: Phacoemulsification with toric Nanoflex IOL implantation;   Device: NanoFlex toric Intraocular Lens
38 Not yet recruiting Clinical Trial With PRECIZON Presbyopic
Conditions: Cataract;   Presbyopia
Intervention: Device: PRECIZON Presbyopic
39 Not yet recruiting Rayner Toric IOL Rotational Stability
Conditions: Cataract;   Corneal Astigmatism
Interventions: Procedure: Cataract surgery;   Device: Rayner T-flex Toric IOLs
40 Recruiting A Clinical Trial of The VisAbility Implant System Presbyopic Patients
Condition: Presbyopia
Intervention: Device: VisAbility Implant Model SGP-046

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Indicates status has not been verified in more than two years