How to choose the degree of myopic swimming goggles?

People with high myopia will encounter many inconveniences in life. For example, if they wear ordinary myopia glasses when swimming, it will be very inconvenient. Now there is a kind of myopia swimming goggles on the market. This kind of swimming goggles is said to have degrees and are very convenient to wear when swimming. In comparison, many people have no experience in buying myopia swimming goggles, so the following will teach you how to choose the degree of myopia swimming goggles.

How to choose the degree of myopic swimming goggles?

How to choose the degree of myopic swimming goggles? Many people encounter a problem when wearing swimming goggles, which is what to do with myopia? How to choose the degree of myopic swimming goggles?

The lens diopter of traditional myopic swimming goggles is mostly between 150 degrees and 800 degrees, basically with every 50 degrees as a segmented standard. In 2011, with the birth of the Xiongzi swimming goggles independently developed by Chinese people, the defect that myopic swimming goggles cannot be accurately fitted was finally broken. The Xiongzi swimming goggles can be divided into sections every 25 degrees just like myopia glasses, and can also accurately test astigmatism.

1. People with pure myopia

Due to the refraction of light in water and the fact that goggles are closer to the eyes than the frame, it is generally better to choose a myopia that is 50 to 100 degrees lower than usual (note: do not wear a higher degree than usual, otherwise you will feel dizzy underwater).

2. Myopic people with astigmatism

You can divide the astigmatism degree by 2, add the degree of myopia (myopia degree + 1/2 astigmatism degree), and then subtract 50 to 100 degrees accordingly. This is the ideal degree of swimming goggles.

3. People with different myopia in both eyes

For consumers with different myopia degrees in each eye, the degree choices for the left and right eyes should also be different. The method for selecting the degree of each eye is handled accordingly according to the above two situations.

Generally, the minimum degree of myopic swimming goggles is 150 degrees, and the degree fluctuates between about 50 and 100 degrees in water. Therefore, if the degree is less than 150 degrees, you can just choose plain swimming goggles.

How to choose the degree of myopic swimming goggles? If it is just myopia without any other problems, the degree of swimming goggles should be lower than that of frame glasses. This is because the light in the water is refracted, and the distance between the goggles and the eyes is closer than that of frame glasses. Therefore, the degree of the goggles should be lower, generally about 50 to 100 degrees lower than the usual degree. If the degree of the frame glasses you wear is less than 150 degrees, it is generally recommended to choose plain goggles. For example, if the degree of myopia is 275 degrees, you can get a 200-degree lens. If you have high requirements for vision, you can also reduce it by 25 degrees.

For people with myopia and astigmatism, how should they choose the degree of myopia swimming goggles? There is a calculation rule here, which is to divide the degree of astigmatism by two, and then add the degree of myopia, that is, the degree of myopia plus half of the degree of astigmatism. The resulting degree is subtracted by 50 to 100 degrees accordingly. This degree is the degree of the selected swimming goggles. For example, if the myopia degree is 500 degrees and the astigmatism degree is 100 degrees, then according to the rule, the degree obtained is 550 degrees. After subtracting 50 to 100 degrees, the degree of the selected swimming goggles is 450 or 500 degrees.