Roger Bacon’s studies and observations led him to make the earliest recorded comments regarding the use of lenses for optical purposes.

Learn commonplace techniques that can be used to insert contact lenses. Depending on your preference and ability there find out which technique you should use to insert your contacts.

There are 4 easy steps to removing contact lenses, which include cleanliness, eye preparation, eye manipulation, and the removal of the contact lens.

Farsightedness, Hyperopia and Hypermetropia all refer to a disorder where the refraction, or bending of light, as it passes through the eye's cornea and lens, causes the light to focus onto a virtual point behind the retina resulting in blurred vision.

Styes are usually caused by a bacterium called Staphylococcus aureus, and can be treated using warm compresses and antibiotics.

Alexandria Genesis and purple eyes are said to be a mutation of the genes that cause a person's eye color to change from blue to purple within their first 6 months of life.