Surgical masks effectiveness have time limit during intravitreal injections
January 10th 2022Patients undergoing injections during the COVID-19 pandemic experienced increases in bacterial contamination of the periocular area of their surgical face masks when the masks were worn for longer than 4 hours, report Spanish researchers.
Gender, visual status determine differences in viewing distances of smartphones
December 15th 2021An increase in popularity of the use of handheld electronics is resulting in changes in the postural and behavioral patterns of device users, as well as significant differences between presbyopes and non-presbyopes and between genders.