ögonvätskor

Ögonvätskor, also known as tears, are a clear, watery fluid produced by the lacrimal glands in the eyes. Their primary function is to lubricate the eyes, protecting them from dust, dirt, and other foreign particles. Tears also help to distribute oxygen to the cornea and maintain its shape, as well as to remove debris from the surface of the eye. Additionally, tears play a role in the immune response, helping to flush out irritants and pathogens.

Tears are composed of approximately 99% water, with the remaining 1% consisting of various proteins, electrolytes, and antibodies. The lacrimal glands produce tears in response to various stimuli, including dryness, irritation, or the presence of a foreign object in the eye. The tears are then drained through the lacrimal puncta and lacrimal ducts into the nasal cavity, where they are absorbed or swallowed.

Ögonvätskor can be affected by various conditions, such as dry eye syndrome, which is characterized by a lack of sufficient tears or an imbalance in the composition of tears. Other conditions that can affect tear production include blepharitis, meibomian gland dysfunction, and conjunctivitis. Treatment for these conditions may include artificial tears, lubricating eye drops, or surgical intervention.

In summary, ögonvätskor are essential for maintaining the health and function of the eyes. Understanding the role of tears and the conditions that can affect their production can help in the prevention and management of eye-related issues.