Lysozyme concentration in reflex and "basic" secretion.

When the lysozyme concentration (expressed in microgram/ml HEL) in reflex-stimulated tears was compared with tear fluid obtained after local anaesthesia (after correction for differences in volume and matched against standard concentrations of HEL with standard volume), there was no significant statistical difference. These findings suggest that there is either a common source for stimulated and unstimulated tears or there are two different sources for tears that are secreted with the same lysozyme concentration.