| Enrolling By Invitation | Comparison Of Keratometric Readings Pre and Post Pterygium Excision With Conjunctival Autograft Transplantatio NCT07198126 | Mughal Eye Trust Hospital | N/A |
| Recruiting | Effectiveness, Stability and Influence Factors of Femtosecond Laser Assisted Cataract Surgery NCT07081919 | Eye & ENT Hospital of Fudan University | — |
| Enrolling By Invitation | A Prospective Clinical Investigation to Evaluate the Safety and Performance of 877PTY Toric IOL for Visual Cor NCT06578884 | Medicontur Medical Engineering Ltd | — |
| Active Not Recruiting | Clareon Toric Study (T2-T9) NCT06285695 | Alcon Research | N/A |
| Completed | Clinical Trial of a Hydrophilic EMV Toric Lens RAO210T in the Correction of Aphakia and Corneal Astigmatism NCT05985304 | Rayner Intraocular Lenses Limited | N/A |
| Unknown | Limbal Relaxing Incisions Versus Paired 4 mm Clear Corneal Incisions on Steep Meridian During Phacoemulsificat NCT05593263 | Sohag University | N/A |
| Unknown | Evaluation of the Safety and Efficacy of Rigid Breathable Scleral Contact Lenses for the Correction of Ametrop NCT06256770 | Tianjin Eye Hospital | — |
| Unknown | Feasibility Investigation of Biometry and Tomography Measurements in a Heterogeneous Patient Cohort NCT05458661 | Carl Zeiss Meditec AG | N/A |
| Unknown | The Long-term Outcome After Toric Intraocular Lens Implantation NCT05465447 | Wenzhou Medical University | — |
| Unknown | Influence of Different Toric Intraocular Lenses on IOL-capsular Complex NCT05263518 | Wenzhou Medical University | N/A |
| Completed | Retrospective Chart Review of enVista Toric 0.9D Intraocular Lenses NCT05075746 | Bausch & Lomb Incorporated | — |
| Completed | Evaluation of Axial Stability of Two Models of Intraocular Lenses in Patients With an Eye Length More Than 26 NCT05129566 | The S.N. Fyodorov Eye Microsurgery State Institution | N/A |
| Completed | Clinical Investigation of Two Tecnis Investigational Lenses NCT04890249 | Johnson & Johnson Surgical Vision, Inc. | N/A |
| Completed | Visual Results of the Acrysof IQ Vivity Toric Extended Vision Intraocular Lens NCT04652037 | Centre hospitalier de l'Université de Montréal (CHUM) | N/A |
| Completed | Clinical Investigation of an AcrySof IQ PanOptix Toric Intraocular Lens NCT04542525 | Alcon Research | N/A |
| Completed | Clinical Investigation of the Visual Outcomes and Safety of a Trifocal Toric IOL in an Asian Population NCT04528069 | Alcon Research | N/A |
| Completed | Computer-aided Diagnosis of Ocular Diseases Based on Corneal Biomechanics NCT04475900 | Technische Universität Dresden | — |
| Completed | Evaluation of the Rotational Stability of the Tecnis Toric II IOL NCT04327518 | Johnson & Johnson Surgical Vision, Inc. | N/A |
| Unknown | Contribution of Posterior Corneal Astigmatism to Total Corneal Astigmatism in a Sample of Egyptian Population NCT04393740 | Cairo University | — |
| Completed | Post-market Study to Obtain Surgeon Feedback on Clinical Outcome in Eyes Implanted With TECNIS Toric II IOL NCT04210232 | Johnson & Johnson Surgical Vision, Inc. | N/A |
| Active Not Recruiting | Treatment of Vision Disturbances Due to Corneal Irregularities by Trans-epithelial Optical Phototherapeutic Ke NCT03841253 | London Vision Clinic | N/A |
| Completed | Clinical Investigation of the Safety and Effectiveness of an Investigational Model of the TECNIS® Intraocular NCT03949335 | Johnson & Johnson Surgical Vision, Inc. | N/A |
| Completed | Post-Approval Study of the TECNIS SYMFONY® Toric Lenses NCT03791619 | Johnson & Johnson Surgical Vision, Inc. | N/A |
| Completed | Manually Performed Limbal Relaxing Incisions vs Femtosecond Laser-guided Astigmatic Keratotomy NCT03264534 | Assiut University | N/A |
| Recruiting | Dresden Corneal Disease and Treatment Study NCT04251143 | Technische Universität Dresden | — |
| Unknown | Toric IOL vs Non-toric IOL With LRI for Corneal Astigmatism NCT03633851 | Ashford and St. Peter's Hospitals NHS Trust | N/A |
| Completed | Evaluation of the Safety and Performance of the HARMONI® Toric Lens NCT03050697 | ClarVista Medical | N/A |
| Completed | ClarVista HARMONI Toric Trial With Intraoperative Exchange NCT03054649 | ClarVista Medical | N/A |
| Completed | Evaluation of the Impact of Corneal Width on Surgically Induced Astigmatism (SIA) and Functional Results After NCT05510869 | Medical University of Lodz | N/A |
| Unknown | Rayner Toric IOL Rotational Stability NCT02393313 | Tel-Aviv Sourasky Medical Center | N/A |
| Unknown | Combined 25-gauge Vitrectomy and Cataract Surgery With Toric Intraocular Lens With Idiopathic Epiretinal Membr NCT02328157 | Kagawa University | N/A |
| Completed | Retrospective / Prospective Clinical Study of AcrySof® IQ ReSTOR® +2.5 D Multifocal Toric Intraocular Lenses NCT02176343 | Alcon Research | N/A |
| Completed | Tomographic Analysis of Anterior, Posterior, Total Corneal Refractive Power Changes After Laser-assisted Kerat NCT03097302 | University Clinic Frankfurt | — |
| Completed | Construction of Computerized Intraoperative Keratometer and Experimental Study NCT01636167 | Wenzhou Medical University | N/A |
| Completed | Safety and Effectiveness of Arcuate Incisions Performed With the iFS Femtosecond Laser System NCT01348854 | Abbott Medical Optics | Phase 2 |
| Completed | Performance of a Single-piece Toric Acrylic Intraocular Lens NCT02155959 | Prim. Prof. Dr. Oliver Findl, MBA | — |
| Completed | Comparison of Toric IOL Implantation and Opposite Clear Corneal Incision During Cataract Surgery to Correct Co NCT01763151 | Vienna Institute for Research in Ocular Surgery | Phase 4 |
| Completed | Assessment of Visual Performance in Patients With Low Levels of Astigmatism NCT00842231 | Alcon Research | — |
| Unknown | Prospective Evaluation of Limbal Relaxing Incision (LRI) in Conjunction With Phacoemulsification Surgery for A NCT01122992 | Singapore National Eye Centre | N/A |
| Completed | How Astigmatism Influences Corneal Biomechanics and Intraocular Pressure NCT03162471 | Medical University of Lodz | — |