Ancient Cataract Surgery (Part 1)
For a lot of people, the sense of sight is the most important of all the senses. In fact, a survey has proven that the majority of people consider losing their vision as one of the things that they are most afraid to lose. It is no surprise therefore that cataract surgery is one of […]
History of Eyeglasses
Unlike other inventions, spectacles or eyeglasses have, ironically, an unclear history. Although there are many individuals who have been associated with its development over the years, there is no single person who can be credited for its invention. History shows that the Vikings were actually using some kind of device that magnified objects. 13th Century […]
Evolution of Correcting Vision: From hard to use spectacles to LASIK
The history of eyeglasses is shrouded in mystery. No single person is credited with its invention although record shows that the Vikings had a similar device used for magnifying objects. As for the development of eyeglasses, history tells of a friar in the 13th century who had an outline of using glasses for clearer vision. […]
The Purkinje Effect
Also called the Purkinje Shift, this condition is the tendency of the eyes to loser their color contrasting abilities on the change of luminance. Sensitivity to luminance causes the eyes vision to shift towards the blue section of the color spectrum when the illumination levels are low. This means that the Purkinje Effect induces color […]
