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11 studies found for:    Open Studies | "Hyperopia"
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Rank Status Study
1 Recruiting Feasibility of Measurement of Optical Aberrations in Hyperopia by Using an Adaptive Optics Visual Simulator (AOVIS-I)
Condition: Hyperopia
Intervention: Device: Monocular Adaptive Optics Visual Simulator (AOVIS-I)
2 Recruiting Clinical Trial of the Femtosecond Laser System VisuMax for Refractive Correction of Hyperopia by Means of Lenticule Extraction
Condition: Hyperopia
Interventions: Procedure: Small incision lenticule extraction;   Device: ReLEx® (SMILE)
3 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
4 Recruiting Effect of Peripheral Defocus on Axial Growth in Hyperopes
Conditions: Hyperopia;   Amblyopia;   Anisohyperopia
Interventions: Device: Multifocal contact lenses;   Device: Single vision contact lenses
5 Not yet recruiting A Prospective Safety and Effectiveness Study of a New High Repetition Rate Excimer Laser Using LASIK for the Correction of Ammetropia and Presbyopia
Conditions: Myopia;   Hyperopia;   Presbyopia
Interventions: Procedure: Proscan;   Procedure: Zyoptix;   Procedure: Supracor
6 Recruiting A Prospective Safety and Effectiveness Study of the 500 Hz Technolas Perfect Vision Excimer Laser in Asian Eyes Using LASIK
Conditions: Myopia;   Hyperopia;   Presbyopia
Intervention: Device: Proscan, Zyoptix and Supracor
7 Recruiting Clinical Assessment of a HYDRAGLYDE® Regimen
Conditions: Refractive Errors;   Myopia;   Hypermetropia
Interventions: Device: Lotrafilcon B contact lenses with added wetting agent;   Device: Samfilcon A contact lenses;   Device: POLYQUAD/ALDOX-preserved contact lens solution with added wetting agent;   Device: Hydrogen peroxide-based contact lens solution with added wetting agent;   Device: Senofilcon C contact lenses;   Device: Senofilcon A contact lenses;   Device: Comfilcon A contact lenses;   Device: Habitual Multi-Purpose Solution (HMPS)
8 Recruiting Randomized, Non-inferiority Trial Comparing SMILE and LASIK
Conditions: Myopia;   Astigmatism;   Hypermetropia
Interventions: Procedure: Femtosecond LASIK;   Procedure: Small incision lenticule extraction (SMILE)
9 Recruiting An Evaluation of LASIK and PRK Surgery in Physicians
Conditions: Nearsightedness;   Farsightedness;   Astigmatism
Intervention: Behavioral: Questionnaire (QoV questionnaire)
10 Recruiting Advanced Surface Ablation (ASA) vs Laser-Assisted In Situ Keratomileusis (LASIK)
Conditions: Nearsightedness;   Farsightedness;   Astigmatism
Intervention:
11 Recruiting Study to Evaluate the Safety and Efficacy of HI-BRITE Large Diameter Rigid Gas Permeable Contact Lens
Condition: Refractive Errors
Intervention: Device: HI-BRITE Large Diameter Rigid Gas Permeable Contact Lens

Study has passed its completion date and status has not been verified in more than two years.