RT info:eu-repo/semantics/article
T1 A dynamical method to objectively assess infantile nystagmus based on eye tracking. A pilot study
A1 Meo, Marcos
A1 Del Punta, Jessica Adriana
A1 Sánchez Pavón, Irene
A1 Luis García, Rodrigo de
A1 Gasaneo, Gustavo
A1 Martín Herranz, Raúl
K1 OPTOMETRÍA
K1 2209.15 Optometría
AB Purpose: The purpose of this research is to propose a new method for the easy, inexpensive and objective quantification of nystagmus using eye-tracking records collected during a simple reading task that could be implantable in clinical practice to assess patients with nystagmus.Methods: This is a prospective, observational pilot study. Eye movements of 4 nystagmus patients and 9 healthy children during a reading task (a paragraph with 82 words) on a 15'' monitor were collected and compared. Data are time series indicating the gaze position on the screen. Two quantifiers were proposed: IndS (based on the speed of movements) and IndF (based on the variation of the gaze trajectory).Results: The indices proposed reflect differences in the behavior of eye movements between the two groups. Nystagmus patients present higher values of IndS - indicating smaller number of slow movements (16% of movements with speeds <0.33 1/s for nystagmus and 85% for the control group, with p = 0.01) - and higher values of IndF - indicating higher gaze fluctuation (p = 0.01). Differences were not related with reading speed as show the mean and standard deviation: the nystagmus group required 115±45 s to complete the task and the control group 151±85 s; p = 0.73.Conclusions: The proposed indices provide a new method that allows an objective assessment of nystagmus, with potential use in clinical and research practice to improve the follow-up of patients by monitoring the nystagmus over time or treatment.
PB ELSEVIER
SN 1888-4296
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/81037
UL https://uvadoc.uva.es/handle/10324/81037
LA spa
NO J Optom. 2023;16(3):221-228.
NO Producción Científica
DS UVaDOC
RD 12-ene-2026