prescription snorkel goggles Nearsighted Prescription Snorkeling Mask 6 Detachable Lenses Diving Goggles Adult Blue

prescription snorkel goggles Nearsighted Prescription Snorkeling Mask 6 Detachable Lenses Diving Goggles Adult BlueBrand: WaveProduct name: Prescription Nearsighted Diving Mask M1419 BlueSpecifications: UnisexStyle: flat lens, myopia lens (can be equipped with myopia from 150( 1. 5) degrees to 600( 6. 0) degrees)Myopia Lens: Polycarbonate Prescription lenses are PC,Polycarbonate. Frame: PCLens Strap: SiliconeColor: Royal BlueSize: about 16*11cmUsers: free diving, scuba diving, snorkeling, swimmingFeatures: High definition polycarbonate lenses, good news for people

Brand: Wave
Product name: Prescription Nearsighted Diving Mask M1419 Blue
Specifications: Unisex
Style: flat lens, myopia lens (can be equipped with myopia from -150(-1.5) degrees to -600(-6.0) degrees)
Myopia Lens: Polycarbonate
Prescription lenses are PC,Polycarbonate.
Frame: PC
Lens Strap: Silicone
Color:Royal Blue
Size: about 16*11cm
Users: free diving, scuba diving, snorkeling, swimming

Features:
High-definition polycarbonate lenses, good news for people with myopia;
Professional ergonomic design, widened silicone, comfortable fit, strong adsorption, strictly prevent water leakage, suitable for various face shapes.
Removable and installable lenses.Easy to disassemble and install.
Don't worry about the incorrect degree of the lens.Configure 3 pairs of lenses with different degrees for customers to use.

Example: If you choose 3.0 lenses, we will provide you with lenses of 2.5, 3.0, and 3.5.

Package Included:
1 x diving mask
3 pairs of lenses with different degrees
1 pair of spare screws
1 screwdriver

[degree selection]
No astigmatism
If your eyes do not have astigmatism, choose lenses according to your degree.

Example: Myopia is -5.0 degree,choose -5.0(-500) degree lenses.If myopia is -4.7 degree,choose -4.5(-450) degree lenses(There are no lenses with the same degree of myopia as you. Choose lenses with a lower degree of myopia than you.).

Has astigmatism

If the astigmatism of the eyes is high, please choose lenses that are -0.1 to -0.5 less than your myopia.
Because the refractive index of water is different, it is necessary to subtract 0.5(50) degrees to avoid excessive height, which will make people easily dizzy.

Example: Astigmatism is 1.0(100) degrees, myopia is 5.0(500) degrees, then 500-50=450 degrees, Then you can choose -4.5(-450) degree or -5.0(-500) degree lenses.