The Role of Punctal Plugs for Dry Eyes
Punctal plugs are something we use to help treat Dry Eye Syndrome.
This syndrome is a multifactorial problem that comes from a generalized decrease in the amount and quality of the tears you make. There is often both a lack of tear volume and inflammation in the tear glands, which interfere with tear production and also cause the quality of the tears to not be as good.
We make tears through two different mechanisms. One is called a basal secretion of tears, meaning a constant low flow or production of tears to keep the eye moist and comfortable. There is a second mechanism called reflexive tear production, which is a sudden flood of tears caused by the excitation of nerves on the eye surface when they detect inflammatory conditions or foreign body sensations. It is a useful reflexive nerve loop that helps wash out any foreign body or toxic substance you might get in the eye by flooding the eye with tears. Consider what happens when you get suntan lotion in your eye. The nerves detect the […]