Special Mic How to get myopia swimming moster, the eye -catching astigmatism is the swimming moster
1. Pure myopia crowd
Because the distance between the light in the water and the distance between the swimming mirror distance is closer than the frame, it is generally better to choose lower than the usual myopia 50 to 100 degrees (note: but not to wear higher than the usual degree, otherwise you will dizzy underwater)EssenceHowever, if you have a high requirements for corrected vision, it is also possible to choose a 25 degrees.
2. myopia crowd with astigmatism
The number of astigmatism can be divided by 2, plus the degree of myopia (the number of myopia + 1/2 astigmatism), and then subtracts 50 to 100 degrees accordingly, this is the ideal swimming mirror degree.
2. How to match the swimming mirror with myopia astigmatism
Take an example to explain it.
The degree of actual myopia and astigmatism:
Left eye: myopia (S value) -2.50 (250 degrees myopia); astigmatism (C value) -1.50 (myopia 150 degrees)
Right eye: myopia (S value) -2.00 (200 degrees of myopia), astigmatism (C value) -1.00 (astigmatism 100 degrees)
The appropriate degree of the swimming moster:
Left eye: myopia -2.50x0.86 = -2.15; astigmatism: -1.50x0.86 = -1.29
Right eye: myopia -2.00x0.86 = -1.72; astigmatism: -1.00x0.86 = -0.86
However, when the actual swimming moster is equipped with an integer degree of an increase of 50 degrees, the more suitable swimming mirror should be:
Left eye: 200 degrees of myopia; astigmatism 100 degrees
Right eye: 150 degrees myopia; 50 degrees astigmatism
However, for an example, this mild myopia plus astigmatism is actually enough to wear a flat -light mirror. There is no need to not be equipped with a swimming moster that is specially equipped with astigmatism.Even myopia swimming moster has rarely less than 150 degrees, basically 150 degrees or 200 degrees, and the finished swimming moster basically only has myopia swimming moster.Therefore, if the degree is high, if you want to see more clearly underwater, you must find a merchant to customize the goggles of myopia plus astigmatism.
The above is the information for reference only. If you want to match a suitable myopic astigmatism mirror, you still have to find a customized merchant for detailed consultation.