A contact lens is a corrective or cosmetic lens placed on the cornea of the eye atop the iris. The idea of applying a corrective lens directly to the surface of the eye was first proposed and sketched by René Descartes in 1636, but in was not until 1887 that the German physiologist Adolf Eugen [...]

Lasik is a laser eye surgery that is used to correct vision problems such as near- or farsightedness. In lasik surgery, a laser is used to reshape the cornea of the patient. The lasik surgery can be performed as an outpatient procedure by a doctor in scrubs, though patients are advised to avoid rigorous physical [...]

Nearly two million people are affected by macular degeneration and this is the leading cause of blindness for those over 65. One fifth of all 80 year-olds suffer from this age-related disease.. There is a central region of the retina where an image must be recorded which is on a tiny piece of tissue that [...]