Kyynelnesteeseen

Kyynelnesteeseen, also known as tears, is a thin fluid secreted by the lacrimal glands and accessory glands in the eyes. Its primary function is to lubricate the surface of the eye, keeping it moist and comfortable. This lubrication is crucial for smooth eye movements and for preventing dryness and irritation. Kyynelnesteeseen also plays a vital role in protecting the eye. It contains antibodies and enzymes that help to fight off infections by washing away foreign particles, such as dust and debris, and neutralizing harmful microorganisms.

The composition of kyynelnesteeseen is complex, consisting mainly of water, electrolytes, proteins, lipids, and mucins. These components work together to maintain a stable tear film, which is essential for clear vision. The tear film has three distinct layers: an outer lipid layer produced by the meibomian glands, a middle aqueous layer from the lacrimal glands, and an inner mucin layer from goblet cells. Each layer contributes to the overall health and function of the ocular surface.

Kyynelnesteeseen is also involved in emotional responses. When we cry due to sadness, joy, or pain, the production of tears increases significantly. This emotional crying is thought to serve a social signaling function and may also help to relieve stress by releasing certain hormones. The sensation of tears in the eyes can range from a mild dampness to a profuse flow, depending on the stimulus.