Young Blonde Girl With A Blindfold Sleep Mask

• During both martial arts and weight lifting to encourage reliance on other senses, such as touch or hearing.
• As a sensory deprivation tool in meditation (to focus attention on oneself rather than outside imagery).
• A kidnapping victim, hostage, prisoner, etc. may be blindfolded to avoid identification of location(s) or people. (A common alternative to this usage is the use of a hood instead.)
• Before sunglasses, they were worn as the primary facial cover for those who could not see. This usage, though uncommon, is still practised in modern times.