Title: Valgfritt

Text: As you sit, or stand, and type, remember to blink. Blinking is essential to the function of the eye as it helps spread tears across the surface of the cornea and conjunctiva while removing irritants. The eyelid provides suction across the eye from the tear duct to the entire eyeball to keep them from drying out. A healthy person usually blinks 10 to 15 times per minute but that blink rate may drop up to 80% when focusing on a task, such as typing. Hver avsnitt vil være en test.

Save test: Bruk dette hvis du vil dele denne skrivetesten (kun for godkjente brukere).