Does wearing contact lenses harm your eyes?

Have you ever suddenly discovered that one day your classmates or colleagues suddenly took off their thick glasses? You must be wondering, has their eyesight been restored? Where did you get such good medical skills? Here, let me tell you one thing, they might be wearing contact lenses. The advantage of contact lenses is that they no longer require heavy frames. Instead, the lens is placed directly into the eye. This is both beautiful and generous. This type of contact lens is very popular among people. But after all, it is in direct contact with the eyes, so some people may ask, does wearing contact lenses harm the eyes?

Is it good to wear contact lenses regularly? Generally speaking, the oxygen permeability of contact lenses depends on two factors: the material and thickness of the lens. Oxygen permeability is an important indicator for evaluating the quality of contact lens materials. The ability of the lens to allow oxygen to pass through is called the lens' oxygen permeability coefficient, or "Dk/t". The oxygen permeability of soft contact lenses is directly proportional to the water content of the lens and inversely proportional to the thickness of the lens. Generally speaking, the thinner the lens, the higher the water content, and the higher the oxygen permeability.

The dangers of wearing contact lenses frequently include:

1. Wearing contact lenses will affect the eye membrane and cause eye bags over time, which is ugly.

2. Contact lenses also have some disadvantages. Since contact lenses are worn directly on the cornea, if the lenses or hands are not cleaned properly, wearing contact lenses will more easily cause diseases such as corneal inflammation.

3. You will feel a strong sense of discomfort when wearing it for the first time, and it takes about a week to get used to it. Moreover, the unit price is relatively high, and it is not easy to get it in ordinary eyewear stores.

4. The maintenance and cleaning of contact lenses is time-consuming. Except for the one-day disposable contact lenses, other contact lenses need to be thoroughly cleaned after removal, and the cost of purchasing various types of solutions is also high.

Is it good to wear contact lenses regularly? Are thinner contact lenses better?

Not absolutely. Because thin contact lenses increase oxygen permeability and improve comfort, they are prone to causing the lenses to dry out and become dehydrated, which may cause corneal dryness and corneal staining. At the same time, thin lenses are more easily damaged. Therefore, the choice of contact lenses should be based on comprehensive considerations of the actual situation.

Is it good to wear contact lenses regularly? How long is the best time to wear contact lenses every day?

If the contact lenses you wear have good oxygen permeability, the time you wear them a day should generally not exceed 12 hours, and it is best to control it within 8 hours. Because if you wear it for too long, the cornea will be in a state of hypoxia for a long time. It is recommended that you wear a pair of frame glasses while using contact lenses, and take off your contact lenses and put on frame glasses immediately when you get home from get off work every day. It is best to set aside one or two days a week to use frame glasses so that the cornea can rest and delay the damage process.