What determines the life cycle of contact lenses?
No matter what type of contact lenses, they need to be worn according to the use cycle, and they must be replaced when they expire. So, what exactly determines the life cycle of contact lenses?
The use cycle of contact lenses is mainly determined by the material, and the lens material and processing technology of contact lenses are the main factors that determine the use cycle of contact lenses. The material durability of long-period contact lenses is strong, the water content is low, it is not easy to adsorb protein precipitation and it is not easy to deform, and the short-period discarded lens is more thin and soft, the molding is slightly poor, and the water content is high, so it can not be used for a long time, but the comfort and safety are relatively high.
However, in actual wearing, the use cycle is also affected by other factors, and the wearer's daily environment will greatly affect the use cycle of contact lenses. If you usually work in an air-conditioned room, the air is relatively dry, or in a strong wind environment, the lens water evaporates faster, and the lens is easy to dry, aging and fragmentation. If there is more dust and smoke in the surrounding environment, there will be a lot of sediment on the lens, which will shorten the service cycle.
In addition to environmental factors, the wearer's own personal factors can also affect the life cycle of contact lenses. If the wearer likes to make up, powder cosmetics are easy to enter the eye to form a precipitate. If the wearer has more eye secretions and less tear secretion, it will also shorten the use cycle of contact lenses. In addition, there are some drugs can also have an impact on the life of the lens.
Aging and deterioration of contact lenses start from the time they are unwrapped and synchronized with wearing, so we must pay attention to timely cleaning of impurities on the lens precipitation to avoid affecting the service cycle of the lens.