Simple methods of detecting disease factors in tears and bloods

This study developed simple methods to detect
glucose in tears using paper based microfluidics.
Correlation of tear glucose and blood glucose were studied.
11 volunteers participated in the experiments. After taking
glucose tablets, tears and blood samples were measured at a
given time intervals using a spectrophotometer or a paper
diagnostics. As a result, glucose concentrations with
increasing the glucose intake were increased in both tears
and blood and it became the highest in 30 minutes. Later,
the glucose concentration in tear and blood were decreased
in about 60 minutes. Thus, we found that the tears and the
blood glucose had the similar metabolic rate of
decomposition showing a clear correlation between blood
and tear.