Sight is the most important of the five senses: The complex interaction between the brain and our eyes helps us see the world around us in all its detail throughout our lives. That’s why excellent vision is essential when it comes to ensuring a high quality of life. Glasses play a major role in helping us achieve this aim. Read on to learn all about the way people see and what that involves, including the anatomy of the eye, visual aids like eyeglasses, and diseases and visual impairments such as red-green color deficiency. We’ll also give you a few tips on eyeglass lenses. For instance, did you know that there are many different types of lens designs, lens tints and lens coatings, and that many people can see better if they wear customized glasses?