Browsing by Author "Oyarzún Aguirre, Ignacio Javier"

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    Usefulness of low-cost infrared goggles for the assessment of spontaneous nystagmus
    (2024) Waissbluth Abarca, Sofía; Aracena Carmona, Karina Andrea; Gallardo Cares, Macarena Omaira; García-Huidobro N., Francisco; Oyarzún Aguirre, Ignacio Javier; Marcotti, Anthony
    Introduction: Due to its precision and simplicity, videonystagmography is the most used technique for evaluating eye movements in patients with vestibular complaints. However, its high cost limits its widespread use. In response, the development of lowcost goggles emerged as an alternative to traditional videonystagmography equipment. Objetives: This study aimed to compare the performance between low-cost goggles and videonystagmography in assessing spontaneous nystagmus. Materials and Methods: We conducted a cross-sectional study at the Department of Otolaryngology at the Red UC Christus. Patients referred for vestibular evaluation were assessed using both videonystagmography and a prototype of low-cost goggles. Two blinded clinicianswith varying levels of expertise reviewed recordings from both tests to identify spontaneous nystagmus. Results: Of 104 participants, 56.7% exhibited spontaneous nystagmus detected by videonystagmography. The low-cost goggles demonstrated a concordance of κ = 0.60 for nystagmus detection and κ = 0.47 for classification when used by the less experienced clinician. The more experienced clinician achieved a concordance of κ = 0.82 for detection and κ = 0.73 for classification.