Hyperopia, is a common type of refractive error where distant objects may be seen more clearly than objects that are near. However, people experience hyperopia differently. Some people may not notice any problems with their vision, especially when they are young.
Myopia occurs when the eye grows too long from front to back. Instead of focusing images on the retina—the light-sensitive tissue in the back of the eye—the lens of the eye focuses the image in front of the retina. People with myopia have good near vision but poor distance vision.
Dry eye occurs when the quantity and/or quality of tears fails to keep the surface of the eye adequately lubricated. The risk of developing dry eye increases with advancing age. Women have a higher prevalence of dry eye compared with men.