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Found 39 studies with search of:   "Astigmatism"
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Rank Status Study
1 Recruiting Comparison of Cross-Cylinder Approach and Routine Method for Laser Correction of Astigmatism
Condition: Astigmatism
Intervention: Procedure: photorefractive keratectomy (PRK)
2 Recruiting Study of the MEL 80 Excimer Laser Using LASIK in the Treatment of Mixed Astigmatism
Condition: Mixed Astigmatism
Intervention: Device: MEL 80 Mixed Astigmatism Treatment
3 Completed Silicone Hydrogel Contact Lenses on Low Astigmatism in Japan
Conditions: Refractive Error;   Myopia;   Astigmatism
Interventions: Device: senofilcon A toric;   Device: senofilcon A sphere
4 Completed Evaluation of Visual Outcomes After Myopic LASIK
Conditions: Myopia;   Astigmatism;   Myopic Astigmatism
Interventions: Procedure: Conventional LASIK;   Procedure: Wavefront-guided LASIK
5 Completed Evaluation of Outcomes Following LASIK Surgery Using CustomVue
Conditions: Myopia;   Astigmatism;   Myopic Astigmatism
Intervention: Device: Wavefront-guided LASIK using CustomVue platform
6 Completed Comparison of a Laser Keratome to a Mechanical Microkeratome
Conditions: Myopia;   Astigmatism;   Myopic Astigmatism
Interventions: Device: Amadeus Microkeratome;   Device: IntraLase
7 Recruiting Corneal Astigmatism Measurement Study
Condition: Astigmatism
Intervention:
8 Completed Surgically Induced Astigmatism of Temporal Versus Nasal Clear Corneal Phacoemulsification
Condition: Surrgical Induced Astigmatism
Intervention: Procedure: phacoemulsification and intraocular lens implantation
9 Completed Clinical Performance of Atypical Contact Lens Powers on Subjects With Astigmatism
Condition: Astigmatism
Interventions: Device: Acuvue Oasys for Astigmatism;   Device: Acuvue Advance for Astigmatism
10 Completed 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 toric contact lens;   Device: PureVision Toric;   Device: O2Optix for Astigmatism;   Device: Proclear Toric
11 Completed Evaluation of Two Toric Soft Contact Lenses and a Spherical Soft Contact Lens After Two Weeks of Wear
Condition: Astigmatism
Interventions: Device: senofilcon A toric contact lens;   Device: SofLens toric contact lens
12 Completed 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: SofLens toric contact lens;   Device: Acuvue 2
13 Completed Effect of Eye Movement on Toric Lens Orientation and Visual Acuity
Condition: Astigmatism
Interventions: Device: senofilcon A toric contact lens;   Device: PureVision toric contact lens;   Device: Proclear toric contact lens;   Device: O2Optix for Astigmatism contact lens
14 Recruiting A Prospective, Randomized, Multi Center Clinical Comparison of Fellow Eyes Undergoing Lasik Using the Wavelight Allegretto Wave™ Excimer Laser in One Eye and the Amo/Visx Customvue™ or the Ladarvision 4000 Excimer Laser System in the Contralateral Eye (Wlcvlv-001)
Conditions: Myopia;   Astigmatism
Interventions: Device: Excimer Laser;   Device: AMO/VISX CustomVue™;   Device: LADARVision 4000 excimer laser
15 Active, not recruiting Effect of Pterygium Excision on Intraocular Lens Power Calculation for Subsequent Cataract Operation
Conditions: Pterygium;   Cataract;   Astigmatism
Intervention: Procedure: pterygium excision
16 Recruiting Refractive Change Induced by 2.8-mm Corneal Incision
Conditions: Cataract;   Refractive Surgery;   Astigmatism
Interventions: Procedure: Nasal 2.8-mm corneal incision;   Procedure: Temporal 2.8-mm corneal incision;   Procedure: Superior 2.8-mm incision
17 Active, not recruiting Multi Laser Platform Comparison Study for LASIK
Conditions: Myopia;   Astigmatism
Interventions: Device: Excimer Lasers;   Device: Excimer Laser for the LASIK procedure;   Device: Excimer Laser for LASIK
18 Completed Clinical Trial of Contact Lenses in Extended Wear
Condition: Astigmatism
Interventions: Device: senofilcon A toric contact lens;   Device: balafilcon A toric contact lens
19 Completed A Study to Evaluate the Safety and Effectiveness of the Technols 217z Zyoptix System for Hyperopia
Conditions: Hyperopia;   Astigmatism
Intervention: Device: Technolas 217z Zyoptix Laser
20 Completed The Berkeley Orthokeratology Study
Conditions: Astigmatism;   Myopia
Interventions: Device: Polymethyl Methacrylate-Silicone Contact Lenses;   Device: Polymethyl Methacrylate Contact Lenses

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