How Do Sunglasses Block UV Rays? The color and degree of darkness provided by sunglasses have nothing to do with how well they block dangerous UV rays. Lenses are treated with a clear coating that blocks UV rays, and even standard prescription eyeglasses with no tinting use lenses that have been coated to block UV.
verb (used with object) 1. to overstrain or wrench (the ligaments of an ankle, wrist, or other joint) so as to injure without fracture or dislocation. noun. 2. a violent straining or wrenching of the parts around a joint, without dislocation. 3. the condition of being sprained. Origin of sprain.
A less common type of ankle sprain is called an eversion injury, affecting the medial side of the foot. This happens when the foot, instead of the ankle rotating medially resulting in an inversion (the foot being rolling to the inside), the ankle rotates laterally resulting in an eversion (when the foot rolls to the outside).