Lysozyme
yes
Yes
Tears are considered to be part of the immune system. They contain lysozyme and other substances that protect against bacterial infection.
Lysozyme
lysozyme
Our body cannot fight all substances.
bacteriophages
neutrophils
Lysozyme is an enzyme found commonly in your tears. It defends your body against foreign invaders through you eyes. (You eyelashes also provide protection) The lysozyme damage bacterial cell walls via catalyzing hydrolysis.
Tears contain lysozyme, which degrades bacterial cell membranes.
tears contain over 99% water and a lysozyme that catalyzes bacterial cell walls, this lysozyme is so effective only a few bacteria can live in an eye