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184 studies found for:    ASTIGMATISM
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Rank Status Study
21 Unknown  Limbal Relaxing Incision Versus Toric Intraocular Lens for Corneal Astigmatism During Cataract Surgery.
Conditions: Astigmatism;   Cataract
Interventions: Procedure: Limbal Relaxing Incisions;   Device: Toric Intraocular Lens
22 Active, not recruiting Correction of Myopia Wtih or Without Astigmatism Using the VisuMax™ Femtosecond Laser
Conditions: Myopia;   Astigmatism
Intervention: Device: Carl Zeiss Meditec VisuMax Femtosecond Laser
23 Not yet recruiting Prevalence of Corneal Astigmatism Before Glaucoma Surgery in Chinese Patients With Primary Angle-closure Glaucoma
Conditions: Glaucoma, Angle-Closure;   Astigmatism
24 Completed How Astigmatism Influences Corneal Biomechanics and Intraocular Pressure
Conditions: Corneal Astigmatism;   Intraocular Pressure;   Cataract Senile
Intervention: Diagnostic Test: non-contact measurement of intraocular pressure
25 Unknown  Prospective Evaluation of the Long-term Effectiveness of the Femtosecond Laser-assisted Arcuate Incisions
Condition: Astigmatism
26 Completed Prospective Evaluation of the Effectiveness of the Femtosecond Laser-assisted Refractive Astigmatic Keratotomy.
Condition: Astigmatism
Intervention: Device: Laser-assisted Astigmatic keratotomy
27 Terminated Silicone Hydrogel Contact Lenses on Low Astigmatism in Japan
Conditions: Refractive Error;   Myopia;   Astigmatism
Interventions: Device: senofilcon A toric soft contact lens;   Device: senofilcon A sphere soft contact lens
28 Completed
Has Results
Safety and Effectiveness of Arcuate Incisions Performed With the iFS Femtosecond Laser System
Condition: Corneal Astigmatism
Intervention: Device: iFS Femtosecond Laser System
29 Unknown  SUPRACOR for Myopia and Myopic Astigmatism
Conditions: Myopia;   Myopic Astigmatism;   Presbyopia
Intervention: Procedure: SUPRACOR
30 Not yet recruiting Influence of Trabeculectomy and Phaco-trabeculectomy on Corneal Astigmatism
Conditions: Astigmatism;   Glaucoma
Interventions: Device: Biometry;   Device: Refraction;   Device: Corneal Topography
31 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
32 Completed
Has Results
Effect of Eye Movement on Toric Lens Orientation and Visual Acuity
Condition: Astigmatism
Interventions: Device: senofilcon A;   Device: balafilcon A;   Device: omafilcon A;   Device: lotrafilcon B
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
Has Results
Assessment of Visual Performance in Patients With Low Levels of Astigmatism
Conditions: Cataract Extraction;   Corneal Astigmatism
Intervention: Other: Visual performance measures
35 Completed
Has Results
A Safety and Effectiveness Study of PRK Using the ALLEGRETTO WAVE® EYE-Q Excimer Laser System
Conditions: Myopia;   Astigmatism
Interventions: Procedure: Photorefractive keratectomy (PRK);   Device: ALLEGRETTO WAVE EYE-Q excimer laser system
36 Completed
Has Results
Evaluation of Two Toric Soft Contact Lenses After Two Weeks of Wear
Condition: Astigmatism
Interventions: Device: senofilcon A toric;   Device: alphafilcon A toric
37 Completed Corneal Epithelial and Stromal Thickness Distribution in Keratoconus
Conditions: Keratoconus;   Astigmatism
38 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
39 Completed Tomographic Analysis of Anterior, Posterior, Total Corneal Refractive Power Changes After Laser-assisted Keratotomy
Condition: Corneal Astigmatism
Intervention: Procedure: Laser keratotomy
40 Unknown  Study to Evaluate the Clinical Performance of SynergEyes A2 Hybrid Contact Lenses
Conditions: Refractive Errors;   Astigmatism
Intervention: Device: SynergEyes A2 Hybrid Contact Lens

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