Related Experiment Video
Updated: Aug 12, 2025

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss
Published on: April 11, 2025
Inferior altitudinal visual loss and mask-wearing practices: A case series
Cynthia A Boxrud1, Nicholas A Householder2, Dylan K Kim2
1Jules Stein Eye Institute, UCLA David Geffen School of Medicine, Los Angeles, Ca, USA.
None:
Face mask-wearing practices and their impact on the visual field bear particular importance in the coronavirus disease 2019 (COVID-19) pandemic era. This case series examines 10 participants with no history of ocular impairment or visual field defects who underwent age-corrected visual field testing in both eyes with different types of face masks. Wearing duckbill N95 masks was consistently associated with increased accuracy errors in the inferior altitudinal visual field when compared to wearing surgical masks or no masks. These findings support public health guidance that has previously attributed the risks of falls and accidents to face mask wearing.
Related Concept Videos
Glaucoma: Overview
Prosopagnosia
Photoreceptors and Visual Pathways
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Angle Closure Glaucoma: Treatment

