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SARS-CoV-2 Impairs Vision.

Josef Finsterer1, Fulvio A Scorza, Carla A Scorza

  • 1Klinik Landstrasse (JF), Messerli Institute, Vienna, Austria ; Disciplina de Neurociência (FAS, CASC), Universidade Federal de São Paulo/Escola Paulista de Medicina (UNIFESP/EPM), São Paulo, Brazil ; Programa de Estudos Pós-Graduado em Fonoaudiologia (ACF), Pontifícia Universidade Católica de São Paulo (PUC-SP), São Paulo, Brazil ; and Departamento de Fonoaudiologia (ACF), Escola Paulista de Medicina/Universidade Federal de São Paulo (EPM/UNIFESP), São Paulo, Brazil .

Journal of Neuro-Ophthalmology : the Official Journal of the North American Neuro-Ophthalmology Society
|May 17, 2021
PubMed
Summary
This summary is machine-generated.

Vision problems, including blindness, can be an early sign of SARS-CoV-2 (COVID-19) infection. The virus can affect all parts of the visual system, causing various vision impairments.

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Area of Science:

  • Ophthalmology
  • Neurology
  • Infectious Diseases

Background:

  • Central nervous system and ocular manifestations are increasingly recognized in SARS-CoV-2 (COVID-19) infections.
  • Understanding the spectrum of visual impairment associated with COVID-19 is crucial for timely diagnosis and management.

Purpose of the Study:

  • To review and discuss recent findings on the causes and locations of visual impairment in patients with SARS-CoV-2 infection.
  • To consolidate current knowledge on the impact of COVID-19 on the visual system.

Main Methods:

  • A comprehensive literature search was conducted using PubMed and ScholarOne.
  • All available publications detailing COVID-19 patients with impaired vision were retrieved and analyzed.

Main Results:

  • Visual impairment in SARS-CoV-2-infected patients can result from various conditions including dacryoadenitis, conjunctivitis, optic neuropathies, retinal vascular occlusions, and uveitis.
  • Occipital ischemic stroke and optic nerve involvement were also reported.
  • Visual impairment can be the initial presenting symptom of COVID-19.

Conclusions:

  • Impaired vision can be an early indicator of COVID-19.
  • The entire visual pathway, from the lacrimal glands to the occipital cortex, can be affected by SARS-CoV-2.
  • SARS-CoV-2 impacts the visual tract through ischemia, direct focal infection, and immune-mediated responses.