If you work in an environment with dirt, dust and wind or the potential for falling debris (under cars) or possible projectiles from collision activities (hammering type action), you should seriously consider safety glasses. There is nothing more painful than a foreign body, corneal abrasion or projectile that penetrates the eye and leads to serious damage or loss of the eye. An investment in safety glasses is well worth the valuable protection they provide versus the downtime and lost wages resulting from these injuries.