Golf is an active sport, and you need to ensure your eyes are protected every step of the way. That means a need for lenses that consider the head movements you make playing golf. Those head movements could potentially expose the eyes to harsh sunlight or the elements.
These prescription sunglasses for golf wrap around the face, curving at the edges. That gives you not only an enhanced field of view, but protection from sun glare, wind and other hazards even during the swing.