If you're suffering from dry eye syndrome it may help if you understand how your
eye works.
Tears are formed in glands located around each eye and collect in a tear meniscus or reservoir on the upper and lower lid. Each time you blink, they are spread by the lids to bathe and lubricate the eye, and finally pumped away through the drainage holes called puncta.
A healthy tear film consists of a delicate balance of three layers: |