Generally speaking, the wearers who pay attention to health and safety often choose to buy daily cast contact lenses, but the daily cast is slightly expensive after all, although saving the cost of buying nursing liquid, long-term use will still increase a lot of economic pressure.Therefore, the types with higher cost performance, such as monthly and half-year toss, are still the first choice of most wearers. For them, cleaning and care have become a great worry.
When we take the contact lens off, we find some white objects on the surface of the lens, which are protein deposits.There will be a lot of secretions in people's eyes. When wearing contact lenses, the residual secretions will deposit on the lens with the evaporation of tears.What's more, the lenses generate electrical charges as they rub against the cornea, and they also absorb some particles of dust in the air.The purpose of lens cleaning and care is to remove these precipitates.
We all know that lens cleanliness is closely related to eye health.If the lens is not cleaned thoroughly, the residual sediment will rub the cornea, which is easy to cause various eye discomfort, such as foreign body sensation, red blood and so on.With more and more protein deposition, a large number of bacteria will not only breed easily, but also block the oxygen hole of the lens, aggravating the hypoxia problem of the cornea, which may eventually develop into a serious infection. Various contact lens cleaners have sprung up on the market and claim to be able to completely remove lacrimal proteins.However, either type of cleaner can cause overcleaning and lens breakage, so it's best to use the traditional hand rub, which is economical and convenient.