Night driving can become more challenging when headlights appear painfully bright, streetlights develop halos or road markings seem harder to see. Lower light levels naturally make visual tasks more demanding. However, an outdated prescription, dirty or damaged lenses and certain eye conditions can make the problem worse. Why Is Night Driving More Difficult? At night, there is less contrast between objects and their surroundings. Your pupils become larger to allow more light

You just finished your eye exam, and the optometrist hands you a small slip of paper covered in letters and numbers. OD, OS, SPH, CYL, AXIS. Unless someone explains it, that slip might as well be written in another language. You are not meant to need a medical degree to understand your own vision. This guide breaks down exactly what each part of your prescription means, in plain English, so you can read it with confidence whether you are picking out new frames, ordering glass

A headache does not automatically mean that you need new glasses. Headaches can have many causes, and persistent or severe symptoms should be discussed with an appropriate health-care professional. However, vision problems and improperly fitted eyewear can sometimes contribute to headaches, blurry vision and eye strain. Here are a few possibilities worth investigating. Your Prescription May Have Changed Vision can change gradually. Because the brain is very good at adapting,