Safe driving is dependent upon on proper vision. Actually, driving safely needs several different visual abilities such as being able to see both far ahead as well as your immediate surroundings, peripheral vision, seeing at night and color vision, just to name a few.
Distance vision is crucial because it lets you observe the road ahead of you and detect any dangers that might appear. Being able to see ahead allows you to react early and prevent any accidents. On the other hand, if your distance vision is poor then there's a chance you may not be aware of the dangers in time to stop an accident.
You also need peripheral or side vision, which enables you see to the sides of your car, which is crucial to spot pedestrians, animals and cross traffic without needing to even glance away from the road ahead. Being able to see peripherally is also important when changing lanes and turning. Maximize use of your side and rearview mirrors. Ensure they're adjusted correctly, to help your side vision.
Road safety is also highly dependent on good depth perception. It allows you to judge distances correctly in dense driving conditions, switch lanes and overtake other cars on the road. Good depth perception calls for adequate sight in both of your eyes. In cases of people that have lost vision in one eye, it's advised to check with your optometrist to determine whether it is okay for you to drive. You may have to stop driving until a solution is found to correct your vision.
Accommodation also comes into use on the road. Accommodating is the capability to shift your focus from a view far to something near, like from the road to the speedometer. For those 45 or older you might have increasing difficulty with near vision, and it's normal to require reading glasses or another vision correction solution to make it easier to see objects up close. Speak to your eye doctor to talk about the best option.
At the first sign of a vision problem, think about how it affects your ability to drive. You can't afford to endanger your own life or those of others on the road! If you think your eyesight isn't perfect, see your optometrist, and have a thorough eye exam sooner rather than later.