What is Contact Lens Water Content?

Contact lens water content is not the higher the better. Don’t be brainwashed by the Internet about the perception that contact lenses need to have a high water content. Today we’re going to talk to you about what is the water content of contacts. Is it better to have a higher water content? Or is it better to have lower water content? Freshlady will answer these questions below.

Contact lens water content

Water content is the proportion of water in contact lenses, which determines the material and comfort of the lenses. It is easy to misunderstand the relationship between the water content and the moisturizing power of a lens, but water content is not the same as moisturizing power. Most of the lenses only add a moisturizing factor to the preserving solution of the lenses, and the moisturizing factor will be gradually lost after 1 to 2 hours of wearing; wearing products with too high water content will attract tears from the eyes to maintain their high water content because the water of the lenses will evaporate easily, which will easily cause dry eyes.

How to distinguish between the high and low water content of contact lenses?

The value is defined as 50%, above 50% is high and below 50% is low. Usually, the higher the water content, the softer the lens will be, but when it is higher than 50, it is more likely to break and deform the lens, and it is also more likely to adhere to protein deposits, so it is usually only used for daily disposable lenses.

What types of situations are suitable for wearing high/low water content contact lenses?

White collar workers who usually blow cold air in the office or classroom should wear them. Because the air tends to become dry when the air is blowing, and because contact lenses do not produce water, the lenses will absorb tears to maintain the original water content, making the eyes dry. In winter, the lenses are not suitable for dryness, but in the countryside, the water content is generally higher, so they are more comfortable and moist.