Compared to all the different frame styles and lens shapes of glasses, it might seem like contact lenses are much simpler.
Human eyesight is an incredibly complex system, and a problem anywhere along the way can lead to seriously compromised vision.
One of the most essential things we can do to maintain our quality of life is protect our eyesight.
An estimated 60 percent of children with learning difficulties have undiagnosed vision problems, and 80 percent of learning is visual.
An autoimmune disease is a disorder that causes the immune system to mistake healthy cells for dangerous pathogens and attack them.