Do you know when and by whom eyeglasses are found? Also the development of eyeglasses since been found until its present form? The history of Eyeglasses start from Basra.
Eyeglasses are now no longer just a tool to read, but it has greatly developed into a part of fashion and style. Many people use eyeglasses to protect eyes from the direct beam of sunlight, but many are actually using it for style. In order to look more cool.
Theories about the eye that developed until the 10th century states that the eyes of issuing some sort of signal or beam to detect objects around him. The theory is refuted by Alhazen, the nickname of Abu Ali Al-Hasan Ibnu Al-haytham, by a theory which states that people can see because there is a light that enters the eyeballs.
Alhazen also explains the usefulness of the lens to zoom in to see the object. Alhazen was the Arab mathematician who lived in Basra, Alhazen also the first expert who did a thorough research on the eye. However, these studies not considered until the 13th century an English monk named Roger Bacon developed the study.
In 1268, in Florence, Italy, Salvino d’Armato initiated the creation of modern eyeglasses. At that time, the eyeglasses do not have a handle which is attached on both sides of the wearer’s face. Salvino’s eyeglasses placed at the nose and must be balanced by the user.
Stem eyeglasses were introduced in the 18th century in Paris, France. At that time, stem eyeglasses still have short size and just clamp the two sides of the head. Stem eyeglasses with the size of the ears created in 1727 by a British ophthalmologist, Edward Scarlett.
Dual focus eyeglasses, to see the long distance and short distance, discovered in 1784 by scientists of the United States, Benjamin Franklin. Later, it’s proved that the findings made by the British Samue Pierce in 1775.
- eyeglasses people