How often should traditional contact lenses be replaced?

There are two types of contact lenses: traditional and disposable.

The use time of the traditional label is generally one year (but the actual use time varies, I usually only use it for less than half a year and then throw it away); the disposable type includes quarterly, monthly, and weekly, and the price is relatively cheap.

The current glasses market is not standardized and the profit margins are large. It is difficult for ordinary users to distinguish the cost performance. As you said, 50 yuan products can be sold for several hundred yuan. This kind of thing now exists.

I have been wearing contact lenses for six or seven years and have worn all brands. When shopping, I usually go to local specialty stores with high reputation and high reputation to buy them.

Glasses are not ordinary commodities. You can’t just buy them cheaply. You don’t have to buy expensive ones. You just want them to be safe to use.

If you don’t particularly need it, I suggest you wear tangible glasses.