A5068388886- Ophthalmology and Visual Impairment Studies
- Corneal surgery and disorders
- Glaucoma and retinal disorders
- Intraocular Surgery and Lenses
- Retinal Diseases and Treatments
- Ocular Surface and Contact Lens
- Retinal and Optic Conditions
- Corneal Surgery and Treatments
- Visual perception and processing mechanisms
- Drug-Induced Ocular Toxicity
- Ocular Infections and Treatments
- Retinal Imaging and Analysis
- Ophthalmology and Eye Disorders
- Cerebral Venous Sinus Thrombosis
- Facial Rejuvenation and Surgery Techniques
- Global Cancer Incidence and Screening
- Virtual Reality Applications and Impacts
- Ergonomics and Musculoskeletal Disorders
- Pituitary Gland Disorders and Treatments
- Ocular Diseases and Behçet’s Syndrome
- Cancer and Skin Lesions
- Tactile and Sensory Interactions
- Gaze Tracking and Assistive Technology
- Parathyroid Disorders and Treatments
- Cervical Cancer and HPV Research
University Hospital of Alexandroupolis
2018-2025
Aristotle University of Thessaloniki
2025
Democritus University of Thrace
2020-2024
Abstract Purpose: Democritus Digital Acuity & Reading Test (DDART) is a web-based application of visual acuity (VA) testing validated for near and intermediate distances, which introduces several advanced features such as text camera calibration. DDART has also the functionality to support assessment dVA. The objective this study was validate dVA test against series prevalent conventional distance vision charts. Setting: i) Ophthalmology Department, University Hospital Alexandroupolis,...
Background/Objectives: Swept-Source Optical Coherence Tomography (SS-OCT) is a novel optical biometry technology with limited published data on its reliability compared to the gold standard, partial coherence interferometry (PCI). This study aims assess agreement between an SS-OCT biometer (Argos) and PCI device (IOLMaster 500) in terms of values, intraocular lens (IOL) power calculation mean prediction error (ME). Methods: In this prospective comparative study, axial length (AL), anterior...
Purpose: Primary objective of present study is to introduce a contemporary methodology for the lighting standards update addressing both normophakic and pseudophakic patients. Methods: For sake our study, we theoretically estimated intraocular-to-crystalline lens iIluminance ratio (ICIR) intraocular (IOL) luminous efficiency function VIOL(λ) as new benefit metric. Then, in sample 24 patients (38 eyes) implanted with trifocal diffractive IOL Panoptix (SG) control group (CG) 28 participants...
Purpose: Contemporary monovision techniques use premium intraocular lenses (IOLs), either in both eyes or at least the non-dominant one. Primary objective of this study was to compare efficacy (implantation trifocal diffractive Panoptix IOL eye and bifocal hybrid refractive-diffractive Restor dominant eye), against bilateral myopic monofocal SN60WF targeting − 0.50 D 1.25 myopia one), eye) implantation (with implantation). Methods: This is a prospective, comparative, clinic-based trial....
MNREAD is an advanced near-vision acuity chart that has already been translated and validated in Greek language. Considering no digital test exists, our primary objective was to develop validate a reading based on the fundamental properties of printed (MNREAD-GR).This prospective, comparative study. A developed (Democritus Digital Acuity Reading Test - DDART) with text size calibration, audio recording for automatic timing, as well calculation (RA), maximum speed (MRS), critical print (CPS)...
Recent artificial tear preparations have provided 0.2% concentration of sodium hyaluronate. However, no published data exist on their potential superiority against 0.1% in alleviating dry-eye-disease symptoms cataract extraction surgery.A total 180 patients that underwent surgery were randomly divided into 2 groups according to postoperative regime: Study group (SG) received fixed combination tobramycin and dexamethasone (FCTD) quid for 3 weeks, additionally hyaluronate the COMOD® device 6...
Blink detection and classification can provide a very useful clinical indicator, because of its relation with many neurological ophthalmological conditions. In this work, we propose system that automatically detects classifies blinks as "complete" or "incomplete" in high resolution image sequences zoomed into the participants' face, acquired during examination using near-Infrared illumination. This method utilizes state-of-the-art (DeepLabv3+) deep learning encoder-decoder neural...
Background: The aim of the study was to investigate effect 532 nm (green) diode subthreshold micropulse laser (SML) in treatment non-centre involved clinically significant macular edema (CSME) comparison conventional photocoagulation (CLP). Methods: A total 60 eyes patients diagnosed with CSME were randomly divided into two groups. SML performed first group (G1), while CLP second one (G2). Central thickness (CMT) and best corrected visual acuity (BCVA) measured prior at 3 6 months after...
Purpose: To develop and validate a web-based reading test for normal low vision patients. Methods: This is prospective, comparative trial. The Democritus Digital Acuity Reading Test (wDDART) was developed. wDDART introduces series of advanced characteristics (advanced text calibration, computer-vision-based estimation patient's distance, automatic calculation times) that facilitate the overall examination procedure. wDDART's parameters [reading acuity (RA), maximum speed (MRS), critical...
Impact of light conditions on reading ability following multifocal pseudophakic corrections Georgios Labiris, Panagiota Ntonti, Eirini-Kanella Panagiotopoulou, Aristeidis Konstantinidis, Maria Gkika, Doukas Dardabounis, Irfan Perente, Haris Sideroudi Department Ophthalmology, University Hospital Alexandroupolis, Greece Purpose: To examine the impact intensity and temperature performance bilateral presbyopic correction.Patients methods: This is a prospective clinic-based trial conducted at...
Abstract Background According to experimental and clinical published studies, patients with keratoconus have a genetic predisposition corneal ectasia; however, ectasia might not be activated or reactivated unless an additional stressful event triggers the disease. Triggering factors are sources of reactive oxidative stress; among them, mechanical trauma (vigorous eye rubbing, poorly fit contact lenses), exposure ultraviolet light, atopy/allergies. The aim this case report is present for...
Purpose Primary objective of this study was to identify potential difficulties and/or discomfort when using a facemask. Moreover, explore the impact spectacles, contact lenses and visual acuity on compliance facemask directive. Methods This is prospective that conducted at Department Ophthalmology, University Hospital Alexandroupolis, Greece between June 2020 August 2020. Greek speaking citizens with permanent residency in above 18 years old were included. A custom questionnaire (DeMask-20)...
The aim of this study is to investigate the effect two antiglaucoma procedures, namely trabeculectomy and Ex-PRESS mini-shunt insertion on biomechanical properties cornea. This a prospective study. Thirty patients (30 eyes) were included in Nineteen eyes had an shunt inserted (Group 1) 11 2). examination time points for both groups one three weeks preoperatively at month 1, 6, 12 postoperatively. Corneal (corneal hysteresis (CH) corneal resistance factor (CRF)) measured with Ocular Response...
To evaluate the level of agreement partial coherence interferometry (IOLMaster) and an image-guided system (Verion) in terms keratometric values intraocular lens (IOL) power calculation.Department Ophthalmology, University Hospital Alexandroupolis, Greece.Prospective comparative study.Keratometric (K) IOL calculations were compared for 3 toric models (SN6ATx, TFNTx0, SV25Tx) using 4 formulas (SRK/T, Holladay 1, Hoffer Q, Haigis) patients who had cataract surgery a consecutive-if-eligible...
Introduction The primary objective of this study is to develop and validate an experimental lighting facility that allows the evaluation near intermediate vision in different user-defined illuminance levels. Methods This a prospective, randomized, controlled study. Normophakic patients populated three validation groups (VGs) according their binocular uncorrected visual acuity (UNVA): a) VG1, 0.0-0.1 logMAR; b) VG2, 0.4 c) VG3, 0.7 logMAR. All participants addressed 10 activities daily life...
(1) Background: While smartphones are among the primary devices used in telemedical applications, smart TV healthcare apps not prevalent despite TVs' penetrance home settings. The present study's objective was to develop and validate first TV-based visual acuity (VA) test (Democritus Digital Visual Acuity Test (DDiVAT)) that allows a reliable VA self-assessment. (2) Methods: This is prospective validation study. DDiVAT introduces several advanced features for self-testing; them: automatic...
The Catquest-9SF questionnaire is a tool measuring visual disability and vision-related limitation in patients' daily activities. primary objective of this study was the validation Greek-speaking cataract population.The translated into Greek back English. A pre-final version formed tested by 10 Greek-English bilingual participants translation team, final produced. Patients scheduled for surgery completed preoperatively postoperatively. Rasch analysis performed assessment psychometric...