Medically reviewed by Johnstone M. Kim, MD The term "20/20 vision" refers to how sharp your eyes are when you look at a ...

Nearsightedness (myopia) is when you have trouble focusing on things that are at a distance. Farsightedness (hyperopia) is when you have trouble focusing on things that are close to you.

Two common defects of the eyes are myopia (short-sightedness) and hyperopia (long-sightedness). In both cases, rays of light do not focus on the retina so a clear image is not formed. These two ...

To counter the trend, the ministry in the last fiscal year analyzed the data of 7,400 elementary and junior high school students, including whether or how students suffer from myopia or hyperopia ...

The global implantable collamer lens market is set to experience remarkable expansion in the coming decade, driven by the increasing adoption of minimally invasive vision correction procedures. Market ...

As Professor emeritus, I am using my accumulated knowledge of the emmetropization mechanism to help colleagues to develop funded studies to learn why so many children become myopic. The goal of this ...

Research from Asia has shown that correcting short-sightedness (also known as myopia) in children also leads to an improvement in their overall educational performance.1,2 However in many other parts ...