136 studies found for:    ASTIGMATISM
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Rank Status Study
21 Completed Surgically Induced Astigmatism of Temporal Versus Nasal Clear Corneal Phacoemulsification
Condition: Surrgical Induced Astigmatism
Intervention: Procedure: phacoemulsification and intraocular lens implantation
22 Completed
Has Results
Evaluation of Two Daily Disposable Contact Lenses for Wearers With Astigmatism
Conditions: Astigmatism;   Myopia
Interventions: Device: Nelfilcon A investigational contact lens;   Device: Nelfilcon A commercial contact lens
23 Completed
Has Results
Clinical Performance of Atypical Contact Lens Powers on Subjects With Astigmatism
Condition: Astigmatism
Interventions: Device: senofilcon A toric;   Device: galyfilcon A toric
24 Completed 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)
25 Completed A Study to Investigate the Safety and Effectiveness of Aspheric Laser Refractive Surgery Treatments for Myopia
Conditions: Myopia;   Astigmatism
Interventions: Device: The Bausch & Lomb Zyoptix Tissue Saving Aspheric algorithm;   Device: The Bausch & Lomb Zyoptix Tissue Saving algorithm
26 Completed
Has Results
Toric Intraocular Lens Following Cataract Surgery
Conditions: Cataract;   Astigmatism
Interventions: Device: Toric Accommodating Lens;   Device: Accommodating Lens
27 Completed Evaluation of Outcomes Following LASIK Surgery Using CustomVue
Conditions: Myopia;   Astigmatism;   Myopic Astigmatism
Intervention: Device: Wavefront-guided LASIK using CustomVue platform
28 Completed Comparison of a Laser Keratome to a Mechanical Microkeratome
Conditions: Myopia;   Astigmatism;   Myopic Astigmatism
Interventions: Device: Amadeus Microkeratome;   Device: IntraLase
29 Completed Evaluation of Visual Outcomes After Myopic LASIK
Conditions: Myopia;   Astigmatism;   Myopic Astigmatism
Interventions: Procedure: Conventional LASIK;   Procedure: Wavefront-guided LASIK
30 Unknown  Effect of Posterior Corneal Toricity on Refractive Outcome of Pseudophakia
Conditions: Astigmatism;   Cataract
Interventions: Procedure: phacoemulsification;   Device: Pentacam (Oculus,Germany)examination
31 Recruiting Wavefront-guided PRK vs Wavefront-optimized PRK
Conditions: Myopia;   Astigmatism
Interventions: Procedure: Wavefront-guided PRK;   Procedure: Wavefront-optimized PRK
32 Completed Clinical Evaluation of Two Monthly Replacement Silicone Hydrogel Contact Lenses
Conditions: Myopia;   Astigmatism
Interventions: Device: Lotrafilcon B contact lens, sphere;   Device: Lotrafilcon B contact lens, toric;   Device: Comfilcon A contact lens, sphere;   Device: Comfilcon A contact lens, toric
33 Completed
Has Results
Evaluation of Orientation and Visual Acuity of Four Toric Soft Contact Lenses When Head is Tilted at 90 Degrees
Condition: Astigmatism
Interventions: Device: senofilcon A;   Device: balafilcon A toric;   Device: lotrafilcon B toric;   Device: omafilcon A
34 Completed Comparative In-Vivo Wetting Characteristics of Silicone Hydrogel Materials With Selected Lens Care Systems
Conditions: Myopia;   Astigmatism;   Refractive Error
Interventions: Device: Lotrafilcon B contact lenses (AIR OPTIX AQUA);   Device: Senofilcon A contact lenses (ACUVUE OASYS with HYDRACLEAR);   Device: OPTI-FREE PUREMOIST Multipurpose Disinfecting System (MPDS) contact lens care system;   Device: BIOTRUE contact lens care system;   Device: Balafilcon A contact lenses (PureVision);   Device: ReNu Multiplus contact lens care system
35 Completed A Comparison of Corneal Aberrations in Subjects With Contralateral AcrySof IQ Toric Intraocular Lens (IOL) and AcrySof IQ IOL With Limbal Relaxing Incision (LRI)
Conditions: Cataract;   Astigmatism
Interventions: Device: AcrySof IQ Toric IOL;   Device: AcrySof IQ Aspheric IOL;   Procedure: Limbal Relaxing Incision (LRI)
36 Active, not recruiting A Comparison of Fellow Eyes Undergoing LASIK or PRK With a Wavefront-guided Excimer Laser Versus a Wavefront-optimized Excimer Laser
Conditions: Hyperopia;   Myopia;   Astigmatism
Intervention: Procedure: LASIK and PRK
37 Recruiting Post Approval Study of the AcrySof® IQ Toric Intraocular Lens (IOL) Models SN6AT6-SN6AT9
Conditions: Cataracts;   Astigmatism
Interventions: Device: SN6AT6 Intraocular Lens;   Device: SN6AT7 Intraocular Lens;   Device: SN6AT8 Intraocular Lens;   Device: SN6AT9 Intraocular Lens;   Device: SN60WF Intraocular Lens
38 Not yet recruiting A Trial of Toric Versus Non-toric Intraocular Lenses in Phacoemulsification Cataract Surgery
Conditions: Cataract;   Astigmatism
Intervention: Device: Phacoemulsfication cataract surgery and intra-ocular lens implant
39 Completed
Has Results
In-office Evaluation of Two Toric Soft Contact Lenses and a Spherical Soft Contact Lens
Condition: Astigmatism
Interventions: Device: senofilcon A toric contact lens;   Device: alphafilcon A toric;   Device: etafilcon A sphere
40 Completed
Has Results
Contralateral Comparison of Three Excimer Laser Systems in Performing LASIK
Conditions: Myopia;   Astigmatism
Interventions: Device: Excimer Laser;   Device: AMO/VISX CustomVue™;   Device: LADARVision 4000 excimer laser

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Indicates status has not been verified in more than two years