How to calculate the degree of cosmetic contact lenses

Many people like to wear colored contact lenses, which do make you look more beautiful. For friends with myopia, the degree of colored contact lenses is different from that of glasses. Of course, there is a certain conversion method. So when buying colored contact lenses, you must know how to convert them. If you wear them inappropriately, it may cause symptoms such as dizziness and headache. The conversion method is also relatively simple.

How to calculate the degree of cosmetic contact lenses

To put it simply, the conversion method between the degree of cosmetic contact lenses and the degree of eye examination is that the degree within 300 degrees remains unchanged, 300-500 degrees myopia is reduced by 25 degrees, 500-700 degrees is reduced by 50 degrees, 700-900 degrees is reduced by 75 degrees, and so on. Of course, you can also convert it using the calculation formula: the degree of cosmetic contact lenses = the degree of frame glasses ÷ (1-0.012*the degree of frame glasses).

Currently, the degree of most cosmetic contact lenses on the market ranges from 100 to 900 degrees. Generally speaking, the higher the degree of the contact lenses, the thicker they are, and the less comfortable they will be to wear. There are not many ready-made cosmetic contact lenses for high myopia. There are cosmetic contact lenses with a degree of more than 1,000, but they need to be customized. These customized high-degree colored contact lenses require more advanced manufacturing techniques to make them thinner and lighter, thus ensuring they are comfortable to wear.

Warm reminder: If you have astigmatism, if the astigmatism degree does not exceed 200 degrees, you can ignore the astigmatism degree when choosing low water content (water content can be divided into: low water content 38%, medium water content 42%~60%, high water content >60%); if the astigmatism degree is higher, you need to buy special astigmatism contact lenses.

What happens if you wear contact lenses for a long time?

There are two situations when wearing colored contact lenses for a long time. The first is wearing them for a long time every day, and the second is wearing them for a long time. Regardless of the situation, the result is the same, that is, wearing cosmetic contact lenses for a long time will increase the probability of eye diseases.

Situation 1: Wearing for a long time every day

If you wear colored contact lenses for a long time every day, your eyes will not be able to contact the outside world, which will lead to corneal hypoxia, decreased eye resistance, dry eyes, and visual fatigue. These problems will more easily cause eye diseases. Therefore, wearing colored contact lenses for a long time every day will increase the incidence of eye diseases.

Case 2: Wearing for a long time

The longer you wear contact lenses, the more protein and other deposits will form on them, which cannot be completely washed away by the care solution. These deposits will increase the incidence of eye diseases, so wearing contact lenses for a long time will also increase the incidence of eye diseases.

Things to note when wearing colored contact lenses

1. Do not wear cosmetic contact lenses for more than 8 hours;

2. Don’t wear cosmetic contact lenses every day. Give your eyes a rest for two days a week.

3. Be sure to wash your hands and pay attention to hygiene when wearing or removing cosmetic contact lenses;

4. Do not rub your eyes while wearing cosmetic contact lenses and pay attention to eye hygiene;

5. If your eyes feel uncomfortable while wearing them, you need to take them off