Most of the contributing factors in night-time crashes are directly or indirectly involved with vision. In fact, most states have visual acuity requirements in order for licensure. In the state of Alabama, the visual acuity requirement for licensure without restrictions other than corrective lenses is 20/40. The minimum visual acuity required for licensure, better eye or both eyes together, with or without added restrictions or conditions, is 20/60. If you are involved in an accident and require corrective lenses, you could be guilty of contributory negligence if you were not wearing your corrective lenses. For your safety and the safety of others, always remember to wear your corrective lenses if you require them. If you are not sure if you need corrective lenses, you should go have your eyes examined.