Vision problems are rampant in America, with about 150 million people across the country wearing corrective eyewear each day. There are four major types of vision problems: nearsightedness, farsightedness, astigmatism and age-related vision loss. Anyone with vision problems should consistently use corrective lenses, especially if your vision is worse than 20/40. Find out more about the most common types of vision problems we treat and how to effectively control them by reading through these articles.