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Characterizing the Relationship Between Eye Movement Parameters and Cognitive Functions in Non-demented Parkinson's Disease Patients with Eye Tracking

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SARS-CoV-2 Infection Impairs Oculomotor Functions: A Longitudinal Eye-tracking Study.

Xiaoting Duan¹, Zehao Huang¹, Shuai Zhang¹

¹Zhejiang University, Hangzhou, China.

Journal of Eye Movement Research

|May 2, 2024

Summary

This summary is machine-generated.

Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection can cause lasting neurological issues, affecting eye movement control even six months later. Eye-tracking reveals persistent oculomotor impairments in recovered individuals, impacting cognitive processing.

Keywords:

Eye movement SARS-CoV-2 infection cognitive function eye tracking saccades smooth pursuit

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Published on: March 3, 2023

Area of Science:

Neuroscience
Ophthalmology
Infectious Diseases

Background:

Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection is primarily a respiratory illness, but neurological and cognitive effects are increasingly reported.
Oculomotor functions, crucial for visual attention and cognition, may be affected by SARS-CoV-2 infection.

Purpose of the Study:

To assess oculomotor functions in individuals with mild SARS-CoV-2 infection over six months using eye-tracking.
To determine if eye movement impairments persist post-infection and if eye-tracking can differentiate infected individuals from controls.

Main Methods:

Employed three eye-tracking tasks (free-viewing, fixation, smooth pursuit) with symptomatic SARS-CoV-2 infected volunteers and healthy controls.
Collected data at baseline, 2 months, and 6 months post-infection.
Utilized linear discriminant analysis to evaluate diagnostic accuracy of eye movement metrics.

Main Results:

Symptomatic SARS-CoV-2 infected individuals showed initial impairments in eye movement metrics.
Over six months, eye movement patterns shifted towards focal processing, with no significant improvement in fixation stability.
Eye movement metrics differentiated infected from healthy controls with 62% accuracy six months post-infection.

Conclusions:

Symptomatic SARS-CoV-2 infection can lead to persistent oculomotor function impairments.
Eye-tracking technology provides valuable insights into the short- and long-term neurological effects of SARS-CoV-2.
Future research should utilize advanced methods for comprehensive analysis of SARS-CoV-2's impact on oculomotor functions.