| Not Yet Recruiting | Factors Influencing Subjective Visual Quality in Human Eyes Corneal Wavefront Aberration, Refractive Errors | N/A | 2026-03-18 |
| Active Not Recruiting | Impact of Ultraviolet Radiation and Environmental Factors on Human Ocular Biomechanics Myopia | — | 2025-01-01 |
| Recruiting | Application of Phototherapeutic Keratectomy Mode to Mark the Axis of Astigmatism Astigmatism | N/A | 2024-10-01 |
| Not Yet Recruiting | To Evaluate the Efficacy and Safety of an Defocus Lens in Slowing the Progression of Myopia Myopia, Progressive | N/A | 2024-05-01 |
| Recruiting | Comparison of Compressed Continuous Suture and Conventional Suture in Pterygium Surgery Primary Pterygium | N/A | 2024-04-02 |
| Enrolling By Invitation | Efficacy of 0.05% Cyclosporine A Eye Drops Combined With Absorbable Tear Duct Plugs in the Treatment of Dry Ey Dry Eye Disease | N/A | 2024-03-01 |
| Unknown | Evolution of a Novel Optical Coherence Tomography Based Index in Diagnosing Keratoconus Scansys, Pentacam, Keratoconus, Subclinical Keratoconus | — | 2023-07-01 |
| Unknown | Tilted Gaze Target Test in the Examination of Children With Superior Oblique Muscle Palsy Children With Torticollis | N/A | 2023-06-15 |
| Active Not Recruiting | A Study of a Novel Scheimpflug Device in Diagnosing Keratoconus Scansys, Pentacam, Corvis ST | — | 2023-05-04 |
| Unknown | Characteristics of Eye Diseases in Children and Adolescents With Autism Spectrum Disorders and the Effect of C Autism Spectrum Disorder, Visual Function | — | 2023-04-01 |
| Unknown | Soft Contact Lens Fitting With Different Sagittal Height Myopia | N/A | 2023-04-01 |
| Completed | Correlation Analysis Between Corneal Biomechanics and Anterior Segment Ciliary Muscle Thickness, Anterior Sclera Thickness, Corneal Biomechanics | — | 2023-03-04 |
| Completed | Changes of Optical Quality During the Peak of the Covid-19 Pandemic Corneal Wavefront Aberration, SARS-CoV-2 | — | 2022-11-25 |
| Unknown | Evaluation of the Safety and Efficacy of Rigid Breathable Scleral Contact Lenses for the Correction of Ametrop Ocular Surface Disease, Irregular Astigmatism, Contact Lens Complication | — | 2022-11-01 |
| Completed | Vision Screening Study for College Students at Nankai University Myoma | — | 2022-09-01 |
| Unknown | The Health-Related Quality of Life of the Patients With Symptomatic Convergence Insufficiency Myopia, Convergence Insufficiency | — | 2022-06-01 |
| Unknown | The Effect of Orthokeratography on the Quality of Life and Behavior of Myopic Children Myopia | — | 2022-05-01 |
| Unknown | Safety and Efficacy of Defocus Distributed Multi-point Lens in Myopia Control Myopia | N/A | 2022-05-01 |
| Unknown | Evaluate the Safety and Efficacy of Two Types of Circular Column Modulated Lenses for Delaying the Progression Myopia | N/A | 2022-05-01 |
| Unknown | Effects of Different Designs of Orthokeratology Lens on Myopia Control and Visual Quality Myopic Progression | N/A | 2021-12-10 |
| Completed | Ditefossol Sodium 3% Eye Drops in Patients With Dry Eye Dry Eye Disease | N/A | 2021-11-15 |
| Unknown | The Initiating Factors of Myopia Among Primary and Secondary School Students in Tianjin Myopia; Refractive Error | — | 2021-11-01 |
| Unknown | Prevalence and Environmental Factors for Myopia Among Chinese School-aged Children and Adolescent in Tianjin Myopia, Refractive Errors | — | 2021-03-01 |
| Recruiting | Clinical Treatment of Transcranial Direct Current Stimulation in Older Adolescents With Amblyopia Amblyopia | N/A | 2021-01-30 |
| Unknown | Mask-associated Dry Eye Symptoms in China Dry Eye Syndromes | — | 2021-01-29 |
| Completed | The Effect of the Free-toroidal Design Lenses on the Subjective Visual Quality in the Myopic Population Myopia, Refractive Errors | — | 2021-01-01 |
| Recruiting | Artificial Intelligence for Screening of Multiple Corneal Diseases Deep Learning, Corneal Disease, Screening | — | 2020-12-06 |
| Unknown | Wireless Micropump in Dry Eye Patients Dry Eye | N/A | 2020-12-01 |
| Completed | The Different Design of Orthokeratology Myopia | N/A | 2020-12-01 |
| Completed | HRR as a Novel Biomarker in Sjögren's Syndrome Sjögren's Syndrome | — | 2020-10-29 |
| Unknown | A Novel Sandwich Technique of Minimally Invasive Keratoplasty for Corneal Perforation Corneal Perforation, Corneal Stromal Lenticule,Sandwich Technique | — | 2020-10-23 |
| Completed | Evaluating the Effect of Optical Zones on Correction for SMILE: Vector Analysis Myopia | — | 2020-08-01 |
| Completed | Assessment of Corneal Biomechanics With the Corvis ST in Different Age of Myopia With Orthokeratology Myopia, Orthokeratology | — | 2020-06-01 |
| Active Not Recruiting | The Monitoring and Intervention of Refractive Changes in Children and Teenagers in Tianjin Myopia, High Myopia | N/A | 2020-05-01 |
| Completed | Peripheral Relative Refractive Power of Orthokeratology Lenses Myopia, Myopia; Refractive Error | — | 2020-01-10 |
| Completed | The Characteristics of Backscattering With Depth in the Progression of Keratoconus Elasticum, Incomplete Pseudoxanthoma | — | 2020-01-01 |
| Completed | Multi-modal Medical Images for Extraocular Muscle Fibrosis Assessment Thyroid Eye Disease, TED | — | 2020-01-01 |
| Completed | Clinical Study of Lacrimal Drainage Obstruction Diseases Using Dacryoendoscopy Lacrimal Duct Obstruction | N/A | 2019-11-01 |
| Completed | Age and Refraction in Predicting Myopia Progression in COVID-19 Refraction Error, Myopia | — | 2019-10-01 |
| Completed | A 3-year Cross-sectional Assessment of the Tianjin Child and Adolescent Large-scale Eye Study Myopia | — | 2019-07-01 |
| Unknown | Myopia-control Efficacy by Peripheral Defocus Lens (PDL) Myopia, Progressive | N/A | 2019-07-01 |
| Completed | DIMS-myopia Progression ADN Axial Length Growth Myopia, Progressive | N/A | 2019-06-01 |
| Completed | Evaluation of Morphology Abnormal Cornea Stability With Corneal Biomechanical Keratoconus, Stable | — | 2018-07-16 |
| Completed | The Relationship of Relative Corneal Refractive Power Shift and Axial Length in Adolescents With Orthokeratolo Myopia, Orthokeratology | — | 2018-01-01 |
| Unknown | Refractive Error in Chinese Students Myopia | — | 2018-01-01 |
| Completed | The Effect of Treatment Zone Decentration on Axial Length Elongation After Orthokeratology Myopia, Orthokeratology | — | 2018-01-01 |
| Completed | Near Horizontal Heterophoria in Chinese Children Myopia, Progressive | — | 2017-01-29 |
| Unknown | International Multicenter Study on SMILE Surgery Refractive Error | N/A | 2016-09-01 |
| Unknown | Multi-center Clinical Trial on Corneal Morphology Analysis in Chinese Population Cornea | — | 2015-11-01 |
| Unknown | A Study of Artificial Intelligence Assisted Small Incision Lenticule Extraction (SMILE) for Surgical Design an Myopia, Myopic Astigmatism | — | 2014-03-01 |