The coronavirus disease pandemic has greatly affected our way of life and health system. The use of face masks can reduce the spread of the virus. Wearing a mask that is improperly fitted to the face reportedly results in inferior visual field artifacts. However, the effect of wearing a properly fitted face mask remains unclear. Surgical mask, visual field, COVID-19
Conditions
Interventions
A participant wearing an ear-loop surgical face mask at the lowest position covering the nose with adhesive tape covering the entire length of the superior border during the first two visual field tes
A participant wearing an ear-loop surgical face mask at the lowest position covering the nose with adhesive tape covering the entire length of the superior border. ,A participant wearing an ear-loop s
Sponsors
Faculty of Medicine, Srinakharinwirot University
Eligibility
Sex/Gender
All
Age
18 Years to 60 Years
Inclusion criteria
Inclusion criteria: 1.a best-corrected visual acuity (BCVA) of at least 20/30 (snellen notation) 2. refraction of at least minus 6 diopters 3. intraocular pressure (IOP) within the normal range (21 mmHg) 4.normal slit-lamp examination results; no abnormalities of the optic disc or signs of glaucoma in fundus photography (C:D ratio more than 0.5, focal or diffuse loss of neuroretinal rim or notching or retinal nerve fiber layer defects, disc hemorrhage compatible with glaucoma) 5.no history glaucoma or family history of glaucoma 6. no history of undergoing intraocular or laser surgery in the best eye 7. and no history of receiving medications such as hydroxychloroquine, chloroquine, phenothiazines, pentosan polysulfate sodium (PPS), antituberculosis medications (ethambutol), deferoxamine, talc, or tamoxifen continuously, which may result in damage to the macula or optic nerve.
Exclusion criteria
Exclusion criteria: 1.abnormalities of the macula, optic disc, and retinal nerve fiber layer detected on optical coherence tomography (OCT) 2. inability to complete all three consecutive visual field tests 3.and fixation loss of > 25% , false positive >15% , or false negative >15%.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| sensitivity of visual field at the end of visual field test The independent t-test was used to compare sensitivity when the data were normally distributed. The Mann Whitney U test was used when the data had different distributions | — |
Secondary
| Measure | Time frame |
|---|---|
| N/A N/A N/A | — |
Countries
Thailand
Contacts
Public ContactSumalee Boonyaleephan
Faculty of Medicine, Srinakharinwirot University
Outcome results
None listed