● Suitable for use by teenagers and adults ● No eye fatigue even after long periods of use ● When choosing a swimming goggle, it is recommended that the diopter be set 50 degrees lower than the normal prescription. For example, for a person with a myopia of 200 degrees, it is recommended to choose a goggle with a diopter of 1.5 (150 degrees). 2. Experience the full range of TYR myopia swimming goggles. LGOPV is made of wide-angle optical grade polycarbonate lenses that correct diopters from -1.0 to -9.0. It can be used as an alternative to contact lenses and provides crystal-clear vision for athletes during training. Additionally, the universal eye frame ensures that both male and female swimmers can wear the goggles comfortably and easily. TYR myopia swimming goggles also come with multiple nose bridge sizes, and the headband features a simple button design that makes it easy to adjust the tightness. All polycarbonate lenses include comprehensive UVA/UVB protection. Expand your field of vision Expand your peripheral vision range to help you seize the best opportunities during competition. Adjust easily The simple button design makes it easy and quick to adjust the tightness of the headband. Anti-fog coating The goggles are factory coated with an anti-fog coating to maintain clear vision and protect you from fogging. Removable nose bridge Multiple sizes of nose bridges are available to fit various face shapes. **The anti-fog coating will gradually wear off over time and use, which is normal. Customers can purchase anti-fog water from our store to keep the goggles clear.