Progressive lenses, also known as multifocal lenses, can potentially affect a golf swing because they have multiple prescriptions in one lens, with a gradual transition from one prescription to another. This can create a visual distortion, especially when looking through the bottom portion of the lens, which can be used for reading.
If you wear progressive lenses and are having difficulty with your golf swing, you may want to consider using single vision lenses or contacts specifically for golf. Single vision lenses have the same prescription throughout the lens, which can help reduce visual distortion and improve your overall vision on the course.
Alternatively, you may want to consult with your optometrist or eye care professional to see if there are any adjustments that can be made to your progressive lenses to reduce the visual distortion and improve your vision on the course.