Mathias Abegg

Advances in ocular motor and pupil biomarkers for neurological disorders

Ana Coito, Dominik Brügger, Tatiana Brémovà-Ertl, Pia Massatsch et autres

Neurological disorders are often difficult to diagnose and monitor, particularly in the early stages when symptoms may be subtle or nonspecific. Because the visual system engages a large portion of the cerebral cortex and relies on well-defined neural pathways, it offers a …

us, ch, de (code pays fourni par la source)

Recovery of the Pupillary Response After Light Adaptation Is Slowed in Patients with Age-Related Macular Degeneration

Javier Barranco García, Thomas Ferrazzini, Ana Coito, Dominik Brügger et autres

Purpose: This study evaluates a novel, non-invasive method using a virtual reality (VR) headset with integrated eye trackers to assess retinal function by measuring the recovery of the pupillary response after light adaptation in patients with age-related macular degeneration (AMD). Methods: In …

ch, fr (code pays fourni par la source)

Secondary Brown’s syndrome following fourth nerve palsy – case series and review of literature

Inès Schumacher, Pierre‐François Kaeser, Nathalie Voide, Hilary Grabe et autres

Introduction: Restriction of eye movements following fourth nerve palsy has been attributed to orbital injury in the past. In this report, we challenge this view. Methods: In a retrospective case series, we analyzed seven consecutive patients with a Brown’s syndrome that evolved …

ch (code pays fourni par la source)

Test-retest reliability of gaze precision of a novel virtual reality-based medical device

Ana Coito, A. P. R. Naidu, Julian Lehmann, Bruno Hauser et autres

In virtual reality (VR) systems that track eye movements using infra-red cameras, the precision of gaze measurement is crucial for reliable detection of eye movement disorders. To assess gaze measurement ability and gaze precision consistency of an HMD VR-based medical device system, …

us, ch (code pays fourni par la source)

Automated Measurement of Strabismus Angle Using a Commercial Virtual Reality Headset

Rino Vicini, Dominik Brügger, Hilary Grabe, Mathias Abegg

Current clinical measurements of strabismus angles (SAs) are manual and require a skilled examiner and active cooperation by patients. This results in high interexaminer variability, and clinical use is limited by the availability of trained examiners. An objective and automated procedure, independent …

ch (code pays fourni par la source)

Use of a Novel Virtual Reality-Based Pupillography Device for Glaucoma Management: Cross-Sectional Cohort Pilot Study

Karim El-Koussy, René Höhn, Bruno Hauser, A. P. R. Naidu et autres

BACKGROUND: Current standard methods in monitoring glaucoma progression, like optical coherence tomography (OCT) and standard automated perimetry (SAP), have limitations in certain cases. Automated relative afferent pupillary defect (RAPD) and pupillary light reflex (PLR) testing may offer more objective alternatives. This pilot …

ch (code pays fourni par la source)

Detection of Relative Afferent Pupillary Defects Using Eye Tracking and a VR Headset

Dominik Bruegger, Hilary Grabe, Rino Vicini, Muriel Dysli et autres

Purpose: The purpose of this study was to assess the feasibility of detecting relative afferent pupillary defects (RAPDs) using a commercial virtual reality headset equipped with an eye tracker. Methods: This is a cross-sectional study in which we compare the new computerized …

ch (code pays fourni par la source)

Application of diagnostic criteria for optic neuritis – Authors' reply

Axel Petzold, Yaou Liu, Clare L. Fraser, Mathias Abegg et autres

gb, cn, fr (code pays fourni par la source)

Unilateral corneal arcus and conjunctival vessel alterations in cranial autonomic dysregulation: A case report

Muriel Dysli, Mathias Abegg, Hassen Kerkeni, Roger Kalla et autres

BACKGROUND: Cranial autonomic dysregulation is a common symptom of patients suffering from cluster headache or migraine. The peripheral vascular dysfunction may increase the risk for ischemic or hemorrhagic strokes, myocardial infarction, retinal vasculopathy, cardiovascular mortality, and peripheral artery diseases. Furthermore, it may …

ch, de (code pays fourni par la source)

Retinal layer segmentation in a cohort of healthy children via optical coherence tomography

Anna-Katharina Runge, Jana Remlinger, Mathias Abegg, Thomas Ferrazzini et autres

BACKGROUND: High-resolution optical coherence tomography (OCT) allows the detection of macular pathology and involvement of the optic nerve in a wide spectrum of diseases. For the differentiation of diseased and healthy status, normal values of retinal layer segmentation are critical. Yet, normative …

ch, de (code pays fourni par la source)

Diagnosis and classification of optic neuritis

Axel Petzold, Mathias Abegg, Raed Alroughani, Daniah Alshowaeir et autres

gb, au, ch, kw, sa, br, be, dk, at, ru, us, cz, ca, ph, Algérie, fr, de, ir, mx, pt, jp, Tunisie, pa, gr, cl, hr, si, es, Kenya, Tanzanie, se, kz, rs, th, il, no, kr, it, cn, Mali, ie, mq, Afrique du Sud, uy, Nigéria, in, pl, co, my, tr, vn, ar, ua, tw, nz, Égypte, ba (code pays fourni par la source)

Characteristic retinal atrophy pattern allows differentiation between pediatric MOGAD and MS after a single optic neuritis episode

Thivya Pakeerathan, Joachim Havla, Carolin Schwake, Anke Salmen et autres

Abstract Background Optic neuritis (ON) is the most prevalent manifestation of pediatric multiple sclerosis (MSped) and myelin-oligodendrocyte glycoprotein antibody-associated disease (MOGADped) in children > 6 years. In this study, we investigated retinal atrophy patterns and diagnostic accuracy of optical coherence tomography (OCT) …

de, ch, at, es (code pays fourni par la source)