Avoiding mask-related artefacts in visual field tests during the COVID-19 pandemic.
Marta Gomez MariscalFrancisco José Muñoz-NegretePablo Vicente Muñoz-RamónVictor Aguado CasanovaLaia JaumandreuGema RebolledaPublished in: The British journal of ophthalmology (2021)
Unfitted masks can simulate VF progression in around 6% of cases, mainly in the inferior hemifield, and increase significantly the rate of fixation losses. A similar rate of artefacts was observed using FPP2/KN95 or surgical masks. The use of a surgical mask with an adhesive tape covering the superior border may reduce mask-related artefacts, although concomitant progression cannot be ruled out in all cases.
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