| Development of a Validated Chart for Intermediate Vision Assessment (NCT02279446) | Democritus University of Thrace | 2014-10-01 |
| Clinical Performance of Habitual Wearers of Avaira Toric When Refitted With Clariti Toric Lenses (NCT02248766) | CooperVision, Inc. | 2014-09-01 |
| Rotational Stability Analysis of a Toric Monofocal IOL (NCT04933487) | Beaver-Visitec International, Inc. | 2014-08-26 |
| Patient Perception of Visual Distortions (NCT02203747) | Abbott Medical Optics | 2014-08-01 |
| Multicenter Dispensing Study of Biofinity Toric Made-To-Order Lenses in Extended Power Ranges (NCT02193178) | CooperVision, Inc. | 2014-07-01 |
| Limbal Relaxing Incision Versus Toric Intraocular Lens for Corneal Astigmatism During Cataract Surgery. (NCT02067429) | Christin Henein | 2014-06-01 |
| Clinical Validation of Biofinity Toric MTO (Made To Order) Lenses (NCT02185105) | CooperVision, Inc. | 2014-06-01 |
| Diurnal Changes of the Cornea - a Pilot Study (NCT02155556) | Prim. Prof. Dr. Oliver Findl, MBA | 2014-06-01 |
| Clinical Performance of Habitual Hydrogel vs. Silicone Hydrogel Toric Contact Lenses (NCT02142361) | CooperVision, Inc. | 2014-05-01 |
| Early Changes Between Lenticule Extraction and Small-Incision Lenticule Extraction (NCT02540785) | Sun Yat-sen University | 2014-04-01 |
| Visual Assessment of DAILIES® AquaComfort Plus® for Astigmatism as Compared to 1-DAY ACUVUE® MOIST® for Astigmatism (NCT02071771) | Alcon Research | 2014-04-01 |
| Prospective Evaluation of the Long-term Effectiveness of the Femtosecond Laser-assisted Arcuate Incisions (NCT02164994) | Technolas Perfect Vision GmbH | 2014-04-01 |
| Comparison Between TICL and ICL+AK for High Myopic Astigmatism (NCT03202485) | Wenzhou Medical University | 2014-03-03 |
| Quality of Vision and Quality of Life With LASIK (NCT02161263) | Edward E. Manche | 2014-03-01 |
| Safety and Efficacy Evaluation of a New Contact Lens Disinfecting Solution in Soft Contact Lens Wearers (NCT01912768) | Alcon Research | 2013-12-01 |
| Safety and Efficacy Evaluation of a New Contact Lens Disinfecting Solution in Gas Permeable Contact Lens Wearers (NCT01912781) | Alcon Research | 2013-11-01 |
| New Treatment Algorithm to Reduce Spherical Aberration After LASIK Correction for Myopia (NCT01988415) | Abbott Medical Optics | 2013-11-01 |
| Toric Eye Strain and Stability Study (NCT01857102) | Johnson & Johnson Vision Care, Inc. | 2013-09-01 |
| Clinical Performance of Biofinity Toric Versus Air Optix for Astigmatism (NCT01965288) | CooperVision, Inc. | 2013-09-01 |
| Corneal Epithelial and Stromal Thickness Distribution in Keratoconus (NCT02023619) | SynsLaser Kirurgi AS | 2013-07-01 |
| Clinical Evaluation of Two Monthly Replacement Silicone Hydrogel Contact Lenses (NCT01629693) | Alcon Research | 2013-07-01 |
| Visual Performance Investigation of Two Toric Soft Contact Lenses (NCT01858701) | Alcon Research | 2013-05-01 |
| On-Eye Evaluation of Contact Lens Axis Location (NCT02100410) | Alcon Research | 2013-04-01 |
| Preoperative and Postoperative Refractive and Topographic Evaluation in Patients With Primary Pterygium: Comparison of Two Surgical Techniques (NCT07742995) | Instituto de Oftalmología Fundación Conde de Valenciana | 2013-04-01 |
| Silicone Hydrogel Contact Lens Clinical and Comfort Benefits With a Multi-Purpose Disinfecting Solution (NCT01809197) | Alcon Research | 2013-04-01 |
| Hydrophobic Acrylic Toric IOL Designed to Reduce the Effects of Preoperative Corneal Astigmatism (NCT01852084) | Bausch & Lomb Incorporated | 2013-03-06 |
| Evaluation Study on Corneal Lens for Vision Correction (NCT02053688) | FORSIGHT Vision3 | 2013-02-01 |
| A Study to Address Precision and Refractive Predictability of Femtosecond Laser-assisted Astigmatic Keratotomy Following the Cataract Surgery (NCT01752218) | Technolas Perfect Vision GmbH | 2013-01-01 |
| A Trial of Toric Versus Non-toric Intraocular Lenses in Phacoemulsification Cataract Surgery (NCT01712503) | Western Sussex Hospitals NHS Trust | 2013-01-01 |
| Comparisons of the Astigmatic Power of Toric Intraocular Lens Using Three Toric Calculators: AcrySof, TECNIS, and iTrace Toric Calculator (NCT01978106) | Yonsei University | 2013-01-01 |
| Safety and Effectiveness of Wavefront-guided LASIK for the Correction of Mixed Astigmatism (NCT01675492) | Abbott Medical Optics | 2012-12-06 |
| Comparative In-Vivo Wetting Characteristics of Silicone Hydrogel Materials With Selected Lens Care Systems (NCT01699750) | Alcon Research | 2012-12-01 |
| Evaluating and Improving Functional Driving Vision of Patients With Astigmatism (NCT02624791) | University of Virginia | 2012-09-01 |
| Surgical Correction of Astigmatism (NCT01680354) | Aarhus University Hospital | 2012-09-01 |
| A Safety and Effectiveness Study of PRK Using the ALLEGRETTO WAVE® EYE-Q Excimer Laser System (NCT01699087) | Alcon Research | 2012-08-01 |
| Effect of Head and Gaze Position on Soft Toric Contact Lens Performance (NCT01579045) | Johnson & Johnson Vision Care, Inc. | 2012-08-01 |
| Clinical Comfort Evaluation of Two Marketed Spherical Contact Lenses (NCT02356692) | CooperVision, Inc. | 2012-04-01 |
| Randomized, Non-inferiority Trial Comparing SMILE and LASIK (NCT01216475) | Singapore National Eye Centre | 2012-02-01 |
| Comparative Clinical Evaluation of Soft Toric Lens Designs (NCT01552876) | Johnson & Johnson Vision Care, Inc. | 2012-02-01 |
| Post Approval Study of the AcrySof® IQ Toric Intraocular Lens (IOL) Models SN6AT6-SN6AT9 (NCT01601665) | Alcon Research | 2012-02-01 |
| Prospective Study of an Investigational Toric Soft Contact Lens (NCT01461811) | CIBA VISION | 2011-12-01 |
| Randomized Comparison of the Abbott WHITESTAR Signature System With Ellips Tranversal Ultrasound vs. the Alcon Infiniti With the Ozil Torsional Handpiece in Phacoemulsification: A Contralaterally-Controlled Trial (NCT01279031) | Innovative Medical | 2011-10-01 |
| Clinical Evaluation of Toric Intraocular Lens Made by Aurolab (NCT01396616) | Aurolab | 2011-08-01 |
| A Prospective Study of Femtosecond Laser Intracorneal Lensectomi (NCT01673503) | Odense University Hospital | 2011-05-01 |
| Clinical Comparison of Two Daily Disposable Toric Lenses (NCT01362894) | CIBA VISION | 2011-05-01 |
| An Outcomes Study Comparing the Intralase FS 60 to the Intralase iFS When Performing LASIK Surgery for Nearsightedness (NCT01365728) | Stanford University | 2011-04-01 |
| Prospective Study of Lens Performance of a Monthly Replacement Lens at Two Weeks and Four Weeks (NCT01293240) | CIBA VISION | 2010-12-01 |
| Subjective Comfort With Multipurpose Care Solutions in Soft Contact Lens Wearers (NCT01211535) | Alcon Research | 2010-09-01 |
| Evaluation of Two Daily Disposable Contact Lenses for Wearers With Astigmatism (NCT01207466) | CIBA VISION | 2010-09-01 |
| Toric Intraocular Lens Following Cataract Surgery (NCT01140477) | Bausch & Lomb Incorporated | 2010-06-01 |
| Wavefront-guided Versus Wavefront-optimized LASIK for Nearsightedness (NCT01138189) | Edward E. Manche | 2010-04-06 |
| Efficacy of the Wavefront Optimized (WFO) Profile in Non-anterior Astigmatisms (NCT01432834) | Democritus University of Thrace | 2010-04-01 |
| Astigmatism Management in Cataract Surgery With the AcrySof Toric Intraocular Lens (NCT01075542) | Maastricht University Medical Center | 2010-02-01 |
| Non-dispensing Study to Check Prescription Equivalence of Two Daily Disposable Toric Contact Lens Types (NCT01120782) | Johnson & Johnson Vision Care, Inc. | 2010-02-01 |
| Dispensing Evaluation of New Daily Disposable Toric Soft Contact Lens. (NCT01055132) | Johnson & Johnson Vision Care, Inc. | 2010-01-01 |
| Daily Disposable Toric Comparative Trial in Europe (NCT01070381) | CIBA VISION | 2010-01-01 |
| A Comparison of Corneal Aberrations in Subjects With Contralateral AcrySof IQ Toric Intraocular Lens (IOL) and AcrySof IQ IOL With Limbal Relaxing Incision (LRI) (NCT01045733) | Alcon Research | 2009-12-01 |
| Complete Easy Rub Comparative Efficacy Study (NCT01019564) | Abbott Medical Optics | 2009-12-01 |
| Clinical Comparison of Two Silicone Hydrogel Toric Lenses in the US (NCT01007812) | CIBA VISION | 2009-10-01 |
| Study to Evaluate the Clinical Performance of SynergEyes A2 Hybrid Contact Lenses (NCT01058629) | SynergEyes, Inc. | 2009-08-01 |
| Wavefront-guided PRK vs Wavefront-optimized PRK (NCT02091934) | Stanford University | 2009-04-01 |
| LASIK Using the Alcon Allegretto Wavefront-Guided Excimer Laser vs AMO Visx Wavefront-Guided Excimer Laser (NCT01454843) | Stanford University | 2009-04-01 |
| Comparative Evaluation of Corneal Staining With Balafilcon A Lenses and Two Multi-Purpose Solutions (NCT01024855) | Abbott Medical Optics | 2009-04-01 |
| Multifocal-toric IOL Compared to Multifocal IOL Combined With Limbal Relaxing Incisions for Correction of Moderate Astigmatism During Cataract Surgery (NCT06277349) | Moorfields Eye Hospital NHS Foundation Trust | 2009-03-04 |
| Wavefront Analyzes and Visual Performance of Three Multifocal Intra-ocular Lenses (NCT00876707) | University of Sao Paulo | 2009-03-01 |
| Safety and Effectiveness of the Akreos Toric Intraocular Lens. (NCT00825513) | Bausch & Lomb Incorporated | 2009-02-01 |
| Contralateral Comparison of Three Excimer Laser Systems in Performing LASIK (NCT00821236) | Durrie Vision | 2009-01-01 |
| Corneal Astigmatism Measurement Study (NCT00818532) | Alcon Research | 2008-12-01 |
| Multi Laser Platform Comparison Study for LASIK (NCT00770094) | Durrie Vision | 2008-10-01 |
| Refractive Change Induced by 2.8-mm Corneal Incision (NCT00742950) | Hospital Universitario Ramon y Cajal | 2008-08-01 |
| Technolas 217z Laser With Zyoptix Aspheric Algorithm Used for the LASIK Treatment of Myopia and Myopic Astigmatism. (NCT00769808) | Bausch & Lomb Incorporated | 2008-08-01 |
| Intrastromal Correction of Ametropia by a Femtosecond Laser (NCT00928122) | 20/10 Perfect Vision | 2008-07-01 |
| Compare Anterior Chamber Biometry in Healthy and Post-LASIK Patients (NCT00838734) | Far Eastern Memorial Hospital | 2008-06-01 |
| Toric Orthokeratology - Slowing Eye Elongation (NCT00978692) | The Hong Kong Polytechnic University | 2008-05-01 |
| Clinical Performance of Atypical Contact Lens Powers on Subjects With Astigmatism (NCT00697190) | Johnson & Johnson Vision Care, Inc. | 2008-05-01 |
| Product Performance of a Toric Contact Lens (NCT00658996) | Bausch & Lomb Incorporated | 2008-04-01 |
| Silicone Hydrogel Contact Lenses on Low Astigmatism in Japan (NCT00639353) | Johnson & Johnson Vision Care, Inc. | 2008-02-01 |
| Comparison of Cross-cylinder and Conventional Photorefractive Keratectomy(PRK) in Correcting Medium-high Astigmatism (NCT00663923) | Tabriz University | 2007-11-01 |
| Randomized, Prospective Comparison of the Outcome of Toric Implantable Contact Lens (TICL) and Q-LASIK for the Correction of Myopia With Astigmatism (NCT01088568) | Wenzhou Medical University | 2007-11-01 |
| Evaluation of Orientation and Visual Acuity of Four Toric Soft Contact Lenses When Head is Tilted at 90 Degrees (NCT00583908) | Johnson & Johnson Vision Care, Inc. | 2007-11-01 |
| Evaluation of the Bausch & Lomb PureVision Under Nighttime Driving Conditions (NCT00581659) | University of Iowa | 2007-11-01 |
| Effect of Eye Movement on Toric Lens Orientation and Visual Acuity (NCT00584831) | Johnson & Johnson Vision Care, Inc. | 2007-10-01 |
| Evaluation of Two Toric Soft Contact Lenses After Two Weeks of Wear (NCT00584220) | Johnson & Johnson Vision Care, Inc. | 2007-09-01 |
| In-office Evaluation of Two Toric Soft Contact Lenses and a Spherical Soft Contact Lens (NCT00584727) | Johnson & Johnson Vision Care, Inc. | 2007-09-01 |
| AcrySof Toric Clinical Results (NCT01214863) | Alcon Research | 2007-08-01 |
| Use of Toric Intraocular Lens to Neutralize Keratometric Astigmatism (NCT00925886) | Asociación para Evitar la Ceguera en México | 2007-07-01 |
| Comparison of Senofilcon A Toric Lenses to Balafilcon A Toric Lenses Over Extended Wear Period (NCT00762502) | Johnson & Johnson Vision Care, Inc. | 2007-06-01 |
| Advanced Surface Ablation (ASA) vs Laser-Assisted In Situ Keratomileusis (LASIK) (NCT00778570) | Ottawa Hospital Research Institute | 2007-02-01 |
| Intrastromal Corneal Ring for High Astigmatism on Postkeratoplasty (NCT01018797) | Instituto de Olhos de Goiania | 2007-01-01 |
| Wavefront-guided Photorefractive Keratectomy (PRK) Versus Wavefront-guided Lasik for Myopia (NCT01140594) | Stanford University | 2006-08-01 |
| A Study to Investigate the Safety and Effectiveness of Aspheric Laser Refractive Surgery Treatments for Myopia (NCT00365677) | Bausch & Lomb Incorporated | 2005-10-01 |
| Evaluation of Outcomes Following LASIK Surgery Using CustomVue (NCT00366769) | Medical University of South Carolina | 2005-09-01 |
| A Study to Evaluate the Safety and Effectiveness of the Technols 217z Zyoptix System for Hyperopia (NCT00348205) | Bausch & Lomb Incorporated | 2005-06-01 |
| Comparison of a Laser Keratome to a Mechanical Microkeratome (NCT00366574) | Medical University of South Carolina | 2004-09-01 |
| Effect of Pterygium Excision on Intraocular Lens Power Calculation for Subsequent Cataract Operation (NCT00563667) | Hospital Authority, Hong Kong | 2003-12-01 |
| Evaluation of Visual Outcomes After Myopic LASIK (NCT00366743) | Medical University of South Carolina | 2003-05-01 |
| The Berkeley Orthokeratology Study (NCT00000123) | National Eye Institute (NEI) | 1978-01-01 |