Contact lenses should be the best choice for myopia patients who are troublesome with frame glasses and do not want to perform laser surgery. Contact lenses do not cause harm or cause infections inexplicably, but if you can't insist on cleaning and protection, the lens becomes the first killer of eye health.
From a safety point of view, short cycles are actually more important than brands. In general, we recommend buying short-cycle disposable lenses as much as possible, and for long-cycle types, you can also increase the frequency of replacement to avoid excessive protein deposition. Be aware that even if you scrub every day, there will still be problems with inadequate cleaning. The presence of bacteria, lipids, proteins, inorganic salts and other precipitated substances is the most direct cause of lens contamination and eye infections.
Contact lenses belong to the third category of medical devices and are strictly regulated by the state. When buying contact lenses, be sure to go through formal channels and remember to be cheap. Moreover, the more colorful contact lenses of various colors, due to the addition of a colored layer to affect breathability, the oxygen permeability will be worse than that of transparent contact lenses, and it is more likely to cause corneal hypoxia.
In fact, each brand has its own advantages, it is difficult to measure with the same standards. Even large-brand products may cause discomfort due to unsuitable parameters, such as the base arc parameter. Once the parameter is too large, it may cause slides, and if it is too small, it may affect corneal respiration. Therefore, as long as it is a contact lens product with qualified quality and guaranteed after-sales that meets the relevant national medical device standards, it can be worn with confidence. For contact lenses, the degree of fit is the most important. What about the safety of contact lenses that are not suitable?