| Recruiting | Luminous Efficiency Function V(λ)' of Patients That Underwent Pseudophakic Presbyopic Corrections With EDOF IO Presbyopia | — | 2025-10-15 |
| Not Yet Recruiting | The Impact of Artificial Lighting on the Visual Capacity of Patients With Age-Related Macular Degeneration AMD - Age-Related Macular Degeneration | — | 2025-06-30 |
| Completed | In Vitro and in Vivo Evaluation of the Anti-Inflammatory and Antithrombotic Synergy of Vitamin C and Bioflavon Cardio-protection | N/A | 2024-10-01 |
| Completed | Evaluation of the Visual Acuity Curves of an Enhanced Monofocal Intraocular Lens Presbyopia, IOL, Cataract | — | 2024-04-01 |
| Unknown | Identification of Minimum Focal Points in Vision Curve Formation Presbyopia, Pseudophakia, Cataract | — | 2024-02-01 |
| Completed | Visual Outcomes After Extended Depth of Focus Intraocular Lens Implantation With and Without Digital Assistanc Presbyopia, Pseudophakia, Cataract | — | 2024-01-01 |
| Completed | Comparison of Two Different Optical Biometric Systems Cataract, Presbyopia, Ocular Biometry | — | 2023-07-01 |
| Completed | Pre-symptomatic Screening of Visual Acuity in Pre-school Students Visual Acuity, Refractive Errors, Low Vision | — | 2023-04-20 |
| Recruiting | PREVENTION OF WORSENING RENAL FUNCTION OF INTRAVENUS ALBUMIN IN HEART FAILURE PATIENTS Diuretics Drug Reactions, Heart Failure; With Decompensation, Albumin; Double | Phase 3 | 2023-01-14 |
| Unknown | A Clinical Study on the Effectiveness of a Lacticaseibacillus Strain on Blood Cholesterol Levels Cholesterol Levels | N/A | 2022-12-04 |
| Completed | Comparison of Premium Monovision and Bilateral Implantation of Trifocal Diffractive Intraocular Lenses Presbyopia, Refractive Errors, Cataract | — | 2022-08-01 |
| Unknown | Ocular Parameters in Patients With Sleep Apnea Sleep Apnea Syndrome, Obstructive, Drowsiness, Blinking | — | 2022-07-01 |
| Completed | Ocular Surface Disease and IOP Monitoring With Travoprost Without Conservatives Glaucoma, Glaucoma; Drugs, Ocular Surface Disease | — | 2022-03-15 |
| Completed | Assessment of Visual Acuity in Refugee Population Visual Acuity, Refractive Errors, Low Vision | — | 2022-01-24 |
| Completed | Effects of an Acute Dose of Caffeine on the Performance of CrossFit Athletes Healthy, Young Adults, Athletic Performance | N/A | 2022-01-22 |
| Completed | The Impact of Light Conditions on the Efficacy of Multifocal Intraocular Lens Implantation in Activities of Da Presbyopia, Near Vision, Reading | — | 2021-09-15 |
| Completed | Impact of Personality on Satisfaction Following Presbyopic Correction Personality, Patient Satisfaction, Presbyopia | — | 2021-08-28 |
| Unknown | A Web-based Digital Distance Visual Acuity Test Refractive Errors, Low Vision, Vision Disorders | — | 2021-02-01 |
| Unknown | Perceptions of Ophthalmologists Regarding Contemporary Presbyopia Management. Presbyopia | — | 2021-01-07 |
| Unknown | EFFECT - EFFectiveness of ESPB (Erector Spinae Plane Block) in Laparoscopic Cοlectomies Trial Pain, Postoperative, Acute Pain, Postoperative Complications | N/A | 2021-01-01 |
| Unknown | Smart-TV Application for the Self Examination of the Distance Visual Acuity in Macular Edema Patients Low Vision, Macular Edema, Refractive Errors | — | 2021-01-01 |
| Completed | Development and Validation of an Internet-based Near and Intermediate-vision Reading Test Presbyopia, Refractive Errors, Low Vision | — | 2020-12-02 |
| Unknown | Level of Agreement Between Clinical Defocus Curves and the Web-based Democritus Digital Acuity Reading Test wD Presbyopia, Near Vision | — | 2020-11-20 |
| Unknown | Combination of Inhaled DNase, Baricitinib and Tocilizumab in Severe COVID-19 COVID-19 Severe Respiratory Failure | N/A | 2020-10-25 |
| Completed | Development and Validation of Deep Neural Networks for Blinking Identification and Classification Blinking, Deep Learning | — | 2020-10-01 |
| Active Not Recruiting | A New Parameter for the Assessment of Distance Visual Capacity: the Critical Visual Acuity (CVA) Visual Acuity | — | 2020-09-20 |
| Completed | Validation of an Activities-of-daily-living Framework at Different Light Conditions Presbyopia, Near Vision, Reading | — | 2020-07-01 |
| Completed | Impact of Spectacles on Compliance to Mask-wearing Directives Covid19 | — | 2020-06-25 |
| Completed | The Postsurgical Pain in Elderly Patients Suffering From Undernourishment Undernutrition, Pain | — | 2020-04-01 |
| Completed | Validation of the Catquest-9SF Questionnaire in Greek Language Cataract, Catquest-9SF | — | 2020-02-15 |
| Completed | Luminous Efficiency Function V(λ)' of Patients That Underwent Pseudophakic Presbyopic Corrections Presbyopia | — | 2020-01-07 |
| Completed | Biological Adaptations of Strength Training. Non-Alcoholic Fatty Liver Disease | N/A | 2019-04-02 |
| Completed | Validation of the PNQ for CIPN Patients. Chemotherapy-induced Peripheral Neuropathy | — | 2019-04-01 |
| Completed | Development and Validation of a Digital Optotype for Near Vision in Greek Language. Presbyopia, Low Vision, Near Vision | — | 2019-03-28 |
| Completed | Premium Monovision Versus Other Types of Monovision and Bilateral Trifocal Implantation. Presbyopia, Refractive Errors, Cataract | — | 2018-01-01 |
| Completed | Level of Agreement of Intraocular Lens Power Measurements Between IOLMaster and Verion Cataract | — | 2017-12-15 |
| Completed | Impact of 0.1% and 0.2% Sodium Hyaluronate on Postoperative Discomfort Following Phacoemulsification Surgery Cataract | N/A | 2017-09-15 |
| Completed | Assessment of Near Vision Capacity in Different Light Conditions Following Bilateral Trifocal Intraocular Impl Presbyopia | N/A | 2017-07-01 |
| Completed | Assessment of Near Vision Capacity in Different Light Intensities Presbyopia | — | 2017-01-01 |
| Unknown | Functional Assessment of ADL in Patients Who Underwent Bifocal and Trifocal Presbyopic Correction Presbyopia | — | 2017-01-01 |
| Completed | Tranexamic Acid in Total Knee Replacement Osteo Arthritis Knee | N/A | 2015-10-01 |
| Completed | Physical Activity, Dietary Intake and Bone Status in 6-12 Years Children Bone Status | — | 2015-09-15 |
| Completed | Glistenings and PCO Evaluation for the Envista MX60 Cataract | — | 2015-09-01 |
| Unknown | Functional Assessment of Activities of Daily Living (ADL) in Patients Who Underwent Mini-monovision Correction Presbyopia | — | 2015-03-01 |
| Completed | Postoperative Discomfort and Ocular Redness Following Phacoemulsification Surgery Cataract | N/A | 2015-01-01 |
| Completed | Fourier Transform of Videokeratography Data: Clinical Usefulness in Moderate and Frome Fruste Keratoconus Keratoconus | — | 2014-11-01 |
| Unknown | Development of a Validated Chart for Intermediate Vision Assessment Myopia, Hyperopia, Presbyopia | — | 2014-10-01 |
| Completed | Viscoat Versus Visthesia. A Comparative Study of Post-cataract Endothelial Cell Loss Cataract | N/A | 2014-01-01 |
| Completed | The Effect of Trabeculectomy & Ex-PRESS Glaucoma Drainage Implant on the Corneal Biomechanical Properties Glaucoma Eye | N/A | 2013-07-01 |
| Completed | Greek Physicians Perceptions Regarding Generics Prescribing in Glaucoma Glaucoma | — | 2013-04-01 |
| Completed | Monovision vs Multifocal Lens Insertion in Cataract Patients Cataract | N/A | 2013-03-01 |
| Completed | Diagnostic Capacity of Keratoconus Match Index and Keratoconus Match Probability in Forme Fruste Keratoconus Forme Fruste Keratoconus (FFK) | — | 2011-11-01 |
| Completed | Accuracy of Curvature and Wavefront Aberrations of Posterior Corneal Surface, in Keratoconic and Post-CXL Corn Keratoconus | — | 2011-09-01 |
| Completed | Aqualase Versus Torsional ip. A Study on Endothelial Cells, Corneal Edema and Corneal Sensitivity Cataract | N/A | 2011-04-01 |
| Completed | Variability of Pentacam-derived Back Elevation Measurements in Keratoconus and Cross-linked Corneas Keratoconus | — | 2011-03-01 |
| Completed | Blurring Strength & Aberrometric Changes Following Corneal Cross-linking (CxL) and CxL Combined With Photorefr Keratoconus | N/A | 2010-09-01 |
| Completed | Efficacy of the Wavefront Optimized (WFO) Profile in Non-anterior Astigmatisms Astigmatism | N/A | 2010-04-01 |
| Completed | NAC Supplementation and Skeletal Muscle Performance Skeletal Muscle Damage, Skeletal Muscle Performance, Intgracellular Signaling in Skeletal Muscle | N/A | 2010-01-01 |
| Completed | Impact of Keratoconus, Cross-linking and Cross-linking Combined With Topo-guided Photorefractive Keratectomy o Keratoconus | N/A | 2009-04-01 |
| Completed | Training, Detraining, Retraining and Glycemic Control in Patients With Type 2 Diabetes Type 2 Diabetes | N/A | 2008-09-01 |
| Completed | Evaluation of Corneal Hysteresis and Corneal Resistance Factor After Corneal Cross-linking for Keratoconus Progressive Keratoconus | N/A | 2008-04-01 |
| Completed | Corneal Biomechanical Properties and Anterior Segment Parameters, in Forme Fruste Keratoconus Keratoconus, Forme Fruste Keratoconus | — | 2007-05-01 |
| Completed | Corneal Asphericity Adjustment (Q Adjustment) in Myopic and Hyperopic Patients Undergoing Refractive Correctio Myopia, Hyperopia | — | 2006-03-01 |
| Completed | A Study of Flap Thickness Results Using the Carriazo Pendular Microkeratome - 130 Micrometers Head. Corneal Flap Thickness (Micrometers) | — | 2006-02-01 |