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The human eye, showing the iris and pupil. In 1802, philosopher William Paley called it a miracle of "design."In 1859, Charles Darwin himself wrote in his Origin of Species, that the evolution of the eye by natural selection seemed at first glance "absurd in the highest possible degree". [3]
An Arabic manuscript, dated 1200 CE, titled Anatomy of the Eye, authored by al-Mutadibih. Ophthalmology was one of the foremost branches in medieval Islamic medicine.The oculist or kahhal (کحال), a somewhat despised professional in Galen's time, was an honored member of the medical profession by the Abbasid period, occupying a unique place in royal households.
These timelines of world history detail recorded events since the creation of writing roughly 5000 years ago to the present day. For events from c. 3200 BC – c. 500 see: Timeline of ancient history; For events from c. 500 – c. 1499, see: Timeline of post-classical history; For events from c. 1500, see: Timelines of modern history
With brown eyes taking an overwhelming lead, all of the other eye colors have lower percentages. According to WorldAtlas , 8-10 percent of the world's population have blue eyes.
Print/export Download as PDF; ... Timeline of history of environmentalism (630s ... Timeline of free and open-source software ...
History – records of past events and the way things were. It is also a field responsible for the discovery, collection, organization, and presentation of information about the past. History, by period (See also Timeline of world history) Prehistory – events occurring before recorded history (that is, before written records).
An OVD is a viscoelastic solution, a gel-like substance used to maintain the shape of the eye at reduced pressure, as well as protect the inside structure and tissues of the eye without interfering with the operation. [1] In 1980, D.M. Colvard made the cataract incision in the sclera, which limited induced astigmatism. [9]
It has been proposed that glass eye covers in hieroglyphs from the Old Kingdom of Egypt (c. 2686–2181 BCE) were functional simple glass meniscus lenses. [39] The so-called Nimrud lens , a rock crystal artifact dated to the 7th century BCE , might have been used as a magnifying glass, although it could have simply been a decoration.