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Category Archives: Ophthalmology Scientists

Ophthalmology Scientists

Abu al-Qasim al-Zahrawi – The Father of Modern Surgery

11-Sep-07

Abu al-Qasim Khalaf ibn al-Abbas Al-Zahrawi (936 – 1013), (Arabic: أبو القاسم بن خلف بن العباس الزهراوي) also known in the West as Abulcasis, was an Andalusian-Arab physician, surgeon, and scientist. He is considered the father of modern surgery, and as Islam’s greatest medieval surgeon, whose comprehensive medical texts, combining Islamic medicine and Greco-Roman teachings, shaped both Islamic and European surgical procedures up until the Renaissance. His greatest contribution to history is the Kitab al-Tasrif, a thirty-volume encyclopedia of medical practices.

Biography

abu al-qasim al-zahrawiAbu al-Qasim was born in the city of El Zahra, six miles northwest of Cordoba, Spain. He was descended from the Ansar Arab tribe who settled earlier in Spain. Few details remain regarding his life, aside from his published work, due to the destruction of El-Zahra during later Spanish-Moorish conflicts. His name first appears in the writings of Abu Muhammad bin Hazm (993 – 1064), who listed him among the greatest physicians of Moorish Spain. But we have the first detailed biography of El-Zahrawi from al-Humaydi’s Jadhwat al-Muqtabis (On Andalusian Savants), completed six decades after El-Zahrawi’s death.

In El-Zahra, he lived most of his life. It is also where he studied, taught and practised medicine and surgery until shortly before his death in about 1013, two years after the sacking of El-Zahra.

Works

Abu al-Qasim was a court physician to the Andalusian caliph Al-Hakam II. He devoted his entire life and genius to the advancement of medicine as a whole and surgery in particular. His best work was the Kitab al-Tasrif. It is a medical encyclopaedia spanning 30 volumes which included sections on surgery, medicine, orthopaedics, ophthalmology, pharmacology, nutrition etc.

In the 14th century,

Ibn al-Haytham, The First Scientist

27-Aug-07

ibn al-haythamAbu ʿAli al-Ḥasan ibn al-Ḥasan ibn al-Haytham (Arabic: أبو علي الحسن بن الحسن بن الهيثم, Latinized: Alhacen or (deprecated) Alhazen) (965 – 1039), was a Muslim polymath who made significant contributions to the principles of optics, as well as anatomy, astronomy, engineering, mathematics, medicine, ophthalmology, philosophy, physics, psychology, visual perception, and science in general with his pioneering development of the scientific method. He is sometimes called al-Basri (Arabic: البصري), after his birthplace in the city of Basra in Iraq (Mesopotamia), then ruled by the Buyid dynasty of Persia. His ethnic background is unclear; some scholars consider him Arab, and some consider him Persian. He was a supporter of the Ash’ari school of Islamic theology.

Ibn al-Haytham is regarded as the father of optics, for his influential Book of Optics, which correctly explained and proved the modern intromission theory of vision, and for his experiments on optics, including experiments on lenses, mirrors, refraction, reflection, and the dispersion of light into its constituent colours. He also explained binocular vision and the moon illusion, speculated on the finite speed, rectilinear propagation and electromagnetic aspects of light, and argued that rays of light are streams of energy particles travelling in straight lines. Due to his quantitative, empirical and experimental approach to physics and science, he is considered the pioneer of the modern scientific method and experimental physics, and some have described him as the “first scientist” for this reason. He is also considered by some to be the founder of psychophysics and experimental psychology, for his experimental approach to the psychology of visual perception, and a pioneer of the philosophical field of phenomenology. His Book of Optics has been ranked alongside Isaac Newton’s Philosophiae Naturalis Principia Mathematica as one of the most influential books ever written in the history of physics.

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