From the time I learned to swim to my years of working in the swimming industry, I would like to share my experience in purchasing swimming goggles.
It's not that the most expensive swimming goggles are the best.
I have previously used many relatively expensive swimming goggles, but in fact, goggles priced around 50 yuan are sufficient. You can consider buying a well-known swimming brand and opting for a lower-end model. This usually works fine.
If indoors, it is recommended to use transparent lenses.
In a dim indoor environment, wearing UV-blocking glasses may make it feel even darker.
If you have severe myopia, you can wear swimming glasses for myopia.
Swimmers with normal vision can wear regular swimming goggles. However, if you have severe myopia, you may need to wear prescription goggles, which are actually not expensive.
The interior of swimming goggles cannot be wiped clean.
The swimming goggles have an anti-fog layer inside, so try not to wipe it off with your hands.
I suggest everyone buy small-frame swimming goggles.
I have been swimming for many years and have used numerous pairs of swimming goggles. No matter how expensive they are, big-frame swimming goggles always let water in, whereas small-frame ones are less prone to water ingress. Additionally, they offer less resistance and are less likely to fall off during dives.
Next, let's learn more about how to choose myopia goggles:
對於單純近視者，由於光在水中折射，且泳鏡與眼睛的距離比框架眼鏡更近，一般建議選擇比平常近視矯正度數低 50 至 100 度的度數（注意：但不要佩戴度數比平常高的泳鏡，否則可能在水下引起頭暈）。例如，如果你的近視是 500 度，應選擇 400 或 450 度的泳鏡。如上所述，近視泳鏡的最低度數為 150 度。因此，如果你的框架眼鏡度數低於 150 度，我們建議你佩戴平光泳鏡。如果你的框架眼鏡度數是 275 度，我們建議你選擇 200 度的泳鏡。不過，如果你對矯正視力有較高要求，選擇低 25 度的泳鏡也是可以接受的。
二、對於有散光的近視者，泳鏡的理想度數可按散光度數除以 2，加上近視度數（近視度數 + 1/2 散光度數），再相應減去 50 至 100 度來計算。三、對於兩眼近視度數不同的人，兩眼的度數也應不同。每眼的度數選擇方法應根據上述兩種情況分別處理。
