The TearLab takes a sample from each eye and measures the osmolarity of your tears. If your tears have a high osmolarity, or salt content, it means that they are not properly lubricating your eyes. As the osmolarity in your tears increases the more they damage your ocular surface.
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What Might Cause Your Eyes to Change Color
It's pretty common for eye doctors to have older patients come in asking if the white part of their eye, the sclera, has a growth or is turning a gray color.
Usually, the culprit is senile scleral plaque, which is commonly seen in ...
