Quantitative High-speed Assessment of Droplet and Aerosol From an Eye After Impact With an Air-puff Amid COVID-19 Scenario.
Adolescent
Adult
Aerosols
/ chemistry
Betacoronavirus
COVID-19
Coronavirus Infections
/ transmission
Environmental Monitoring
Female
Fluorescein
/ administration & dosage
Fluorescent Dyes
/ administration & dosage
Humans
Infectious Disease Transmission, Patient-to-Professional
/ prevention & control
Intraocular Pressure
/ physiology
Lubricant Eye Drops
/ administration & dosage
Male
Optical Imaging
Pandemics
Pneumonia, Viral
/ transmission
SARS-CoV-2
Tears
/ chemistry
Tonometry, Ocular
/ instrumentation
Young Adult
Journal
Journal of glaucoma
ISSN: 1536-481X
Titre abrégé: J Glaucoma
Pays: United States
ID NLM: 9300903
Informations de publication
Date de publication:
11 2020
11 2020
Historique:
pubmed:
19
9
2020
medline:
27
11
2020
entrez:
18
9
2020
Statut:
ppublish
Résumé
To quantify aerosol and droplets generated during noncontact tonometry (NCT) and assess the spread distance of the same. This was an experimental study on healthy human volunteers (n=8 eyes). In an experimental setup, NCT was performed on eyes (n=8) of human volunteers under normal settings, with a single and 2 drops of lubricant. High-speed shadowgraphy, frontal lighting technique, and fluorescein analysis were used to detect the possible generation of any droplets and aerosols. Mathematical computation of the spread of the droplets was then performed. In a natural setting, there was no droplet or aerosol production. Minimal splatter along with droplet ejection was observed when 1 drop of lubricant was used before NCT. When 2 drops of lubricant were instilled, a significant amount of fluid ejection in the form of a sheet that broke up into multiple droplets was observed. Some of these droplets traversed back to the tonometer. Droplets ranging from 100 to 500 µm in diameter were measured. There was no droplet generation during NCT performed in a natural setting. However, NCT should be avoided in conditions with high-tear volume (natural or artificial) as it would lead to droplet spread and tactile contamination.
Identifiants
pubmed: 32947358
doi: 10.1097/IJG.0000000000001672
pii: 00061198-202011000-00002
doi:
Substances chimiques
Aerosols
0
Fluorescent Dyes
0
Lubricant Eye Drops
0
Fluorescein
TPY09G7XIR
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1006-1016Références
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