Georgios Labiris

ORCID: 0000-0003-4364-1943
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About
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Research Areas
  • Corneal surgery and disorders
  • Glaucoma and retinal disorders
  • Ophthalmology and Visual Impairment Studies
  • Retinal Diseases and Treatments
  • Ocular Surface and Contact Lens
  • Corneal Surgery and Treatments
  • Intraocular Surgery and Lenses
  • Retinal Imaging and Analysis
  • Retinal and Optic Conditions
  • Telemedicine and Telehealth Implementation
  • Cerebral Venous Sinus Thrombosis
  • Ocular Infections and Treatments
  • Ophthalmology and Visual Health Research
  • Visual perception and processing mechanisms
  • Optical Coherence Tomography Applications
  • Drug-Induced Ocular Toxicity
  • Patient Satisfaction in Healthcare
  • Ophthalmology and Eye Disorders
  • Retinal and Macular Surgery
  • Retinal Development and Disorders
  • Pharmaceutical Economics and Policy
  • Healthcare Policy and Management
  • Gaze Tracking and Assistive Technology
  • Urban Green Space and Health
  • Healthcare Quality and Management

University Hospital of Alexandroupolis
2016-2025

Aristotle University of Thessaloniki
2022-2025

Hellenic Open University
2005-2024

Democritus University of Thrace
2015-2024

University of Thessaly
2007-2022

National and Kapodistrian University of Athens
2022

Papageorgiou General Hospital
2022

Saarland University
2012-2015

University Hospital of Larissa
2008-2009

Intracom Telecom (Greece)
2003

To assess the effect of stage 1 keratoconus (KC) and 2 prevalent KC therapeutic options: (1) corneal collagen cross-linking (CXL) (2) CXL combined with topography-guided photorefractive keratectomy (t-PRK) on self-reported quality life (QOL) by means 25-item National Eye Institute Visual Function Questionnaire (NEI-VFQ 25).Thirty-two patients bilateral (KC group) best-corrected visual acuity 20/20 in both eyes were prospectively recruited. Of them, 19 underwent typical treatment (CXL group),...

10.1097/ico.0b013e31823cbe85 article EN Cornea 2012-01-11

To compare the effect of monovision correction and multifocal intraocular lens (IOL) implantation on patient satisfaction, spectacle dependence, visual acuity, dysphotopsia in cataract patients.University Hospital Alexandroupolis, Democritus University Thrace, Greece.Prospective randomized trial.Patients with a diagnosis senile stage 2 nuclear opalescence were randomly assigned to groups: IOL implantation. Uncorrected (UDVA) corrected (CDVA) distance Visual Function Index-14 (VF-14) scores,...

10.1016/j.jcrs.2014.06.015 article EN Journal of Cataract & Refractive Surgery 2014-06-21

To evaluate the reliability and construct validity of a Greek version NEI-VFQ-25 in patients with chronic ophthalmic diseases.We developed instrument using forward backward translation. One hundred-eighty-six responded to questionnaire. examine reliability, Cronbach's alpha for each subscale was used as an index internal consistency. Test-retest evaluated intraclass correlation coefficients. Regarding validity, both convergent discriminant validities were calculated by means multi-trait...

10.1186/1471-2415-8-4 article EN cc-by BMC Ophthalmology 2008-03-06

The aim of our study was to investigate the biomechanical properties cornea in primary congenital glaucoma (PCG) and identify potential ocular determinants, which affect corneal metrics.Corneal hysteresis (CH), resistance factor (CRF) central thickness (CCT) were measured 26 patients with PCG (40 eyes) aid response analyser. In vivo laser-scanning confocal microscopy used for estimation stromal keratocyte density (KD) evaluation endothelium. Twenty normal subjects served as controls....

10.1111/j.1755-3768.2012.02519.x article EN Acta Ophthalmologica 2012-08-31

10.1016/j.jdiacomp.2016.06.027 article EN Journal of Diabetes and its Complications 2016-07-01

To evaluate the therapeutic effect of corneal cross-linking (CXL) in 2 cases bullous keratopathy combined with ulcer.Two patients (2 eyes) were recruited for sake study. Both suffered from and presented a gradually deteriorating, vision-threatening, central ulcer, despite intense local antibiotic therapy. The same surgical procedure was performed both eyes. De-epithelialization affected corneas accompanied by UV-A finally application contact lens. Local therapy resumed after procedure.Within...

10.1097/ico.0b013e3181a81802 article EN Cornea 2010-01-14

Corneal collagen cross-linking is a rather new technique that uses riboflavin and ultraviolet A light for fiber stabilization in keratoconus corneas. Other than reversible side effects, the preliminary results of corneal studies suggest it safe technique. In this report, we demonstrate case melting after corneas associated with an acute inflammatory response.A 23-year-old Caucasian man cornea stage 1 to 2 underwent uneventful treatment according Dresden protocol. The next day patient had...

10.1186/1752-1947-5-152 article EN cc-by Journal of Medical Case Reports 2011-04-16

Abstract. Purpose: To evaluate the diagnostic capacity of Ocular Response Analyser’s keratoconus match index (KMI) and probability (KMP) classification in a sample (KC) patients. Methods: Keratoconus KMP from 114 KC eyes, randomly selected patients with bilateral (KCG), were compared corresponding ones 109 normal eyes (CG). index’s predictive accuracy was assessed by receiver operating curves (ROC). level agreement evaluated at different stages Amsler–Krumeich classification. Correlations...

10.1111/aos.12056 article EN Acta Ophthalmologica 2013-04-05

Purpose. To evaluate the sensitivity and specificity of corneal biomechanical metrics, anterior segment data, a combination model in differentiating forme fruste keratoconus (FFK) from normal corneas. Methods. A total 50 FFK eyes were identified by calculation KISA index recruited group. Results compared with (NG group) randomly selected patients. The following parameters evaluated for their diagnostic capacity evaluation receiver operating characteristic curves (ROC): hysteresis (CH),...

10.5301/ejo.5000184 article EN European Journal of Ophthalmology 2012-03-07

To evaluate the diagnostic capacity of Ocular Response Analyzer's keratoconus match index (KMI) and probability (KMP) classification in keratoconus-suspect eyes.Department Ophthalmology, University Clinics Saarland, Homburg, Germany.Comparative case series.The KMI KMP parameters eyes normal (control group) were compared. The quantitative percentage was calculated for all suspect eyes. According to thinnest corneal thickness (TCT), divided into 2 subgroups: subgroup 1 (TCT <520 μm) >520 μm)....

10.1016/j.jcrs.2013.08.064 article EN Journal of Cataract & Refractive Surgery 2014-04-06

The purpose of this study was to evaluate the quality life in patients with age-related macular degeneration (AMD) and compare it that healthy controls. Additionally, our aims investigate possible risk factors for poor AMD patients.Participants were 114 AMD, 63 male 51 female, mean-aged 76.5 ± 6.1 years. Demographic data, lifestyle factors, medical history recorded. All underwent a routine examination including best-corrected visual acuity measurement, dilated fundoscopy optical coherence...

10.1080/08820538.2016.1181192 article EN Seminars in Ophthalmology 2016-08-10

Purpose The aim of the study was to assess vision-specific quality-of-life (VS-QoL) Greek glaucoma patients, and impact potential influencing factors. Methods This a 2-center, cross-sectional study. One hundred twenty-one patients were recruited from outpatient service 100 successfully responded self-administered, version National Eye Institute Visual Function Questionnaire 25. results quantified in terms scores (0-100) correlations with possible modifiers investigated. effects sex, income,...

10.1097/ijg.0b013e31819d5cf7 article EN Journal of Glaucoma 2010-01-01

To quantify the levels of tissue inhibitor metalloproteinase 4 (TIMP4) and its ratios with free metalloproteinases (MMP) in aqueous humor patients primary open angle glaucoma (POAG), pseudoexfoliation syndrome (PXS) pseudoexfoliative (PXG) to evaluate a possible imbalance between MMPs TIMPs these samples.Free MMP2, MMP3, MMP9, TIMP1, TIMP2, TIMP4 concentrations active MMP2 MMP3 were determined immunoassay ELISA activity assay kits 168 samples.TIMP4 was elevated patients(POAG: 0.95 ± 0.49...

10.1186/1471-2415-13-69 article EN cc-by BMC Ophthalmology 2013-11-08

The birth culture in Greece is highly medicalised and almost all deliveries are performed hospital settings. purpose of this study was to examine the job satisfaction levels hospital-practising registered midwives determine main predictors their satisfaction. A validated 36-item questionnaire given 168 responses were received from 145. Job similar between who worked public private sector only 45.5% reported being satisfied with job. strongest effect on ‘high’ noted factor recognition. Main...

10.12968/bjom.2014.22.7.480 article EN British Journal of Midwifery 2014-07-02

Abstract Purpose: Democritus Digital Acuity &amp; 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,...

10.1097/j.jcrs.0000000000001176 article EN Journal of Cataract & Refractive Surgery 2023-02-24

Blink detection is considered a useful indicator both for clinical conditions and drowsiness state. In this work, we propose compare deep learning architectures the task of detecting blinks in video frame sequences. The first step training application an eye detector that extracts regions from each frame. cropped are organized as three-dimensional (3D) input with third dimension spanning time 300 ms. Two different 3D convolutional neural networks utilized (a simple CNN ResNet), well...

10.3390/jimaging11010027 article EN cc-by Journal of Imaging 2025-01-19

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...

10.3390/jcm14113903 article EN Journal of Clinical Medicine 2025-06-02

The purpose of this study is to examine the repeatability Pentacam-derived anterior chamber volume measurements, and assess level agreement measurements obtained with Visante Pentacam imaging devices.Anterior was calculated device using Wang formula. Results were analysed by means Wilcoxon signed rank test, Bland-Altman analysis, Cronbach's alpha test intraclass correlation coefficient. P-values <0.01 considered statistically significant.One randomly selected eye from each 20 persons...

10.1111/j.1442-9071.2009.02132.x article EN Clinical and Experimental Ophthalmology 2009-09-18

The aim was to assess the intra-session, inter-session and inter-observer repeatability of curvature aberrometric measurements Pentacam-derived posterior corneal surface in normal control (CG), keratoconic (KCG) after collagen cross-linked (CXLG) groups.This a prospective, clinic-based, observational study that conducted at Eye Institute Thrace (EIT) Alexandroupolis, Greece. Sixty-two eyes formed group, 33 were while 34 eyes, which already had received cross-linking CXLG. Curvature obtained...

10.1111/cxo.12044 article EN Clinical and Experimental Optometry 2013-04-25
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