Pixabay/Free-Photos
Shamina Asif
15 April 2021
This month, many optometrists in the UK will be celebrating the Muslim holy month of Ramadan, which runs from 13 April to 12 May.
OT took the opportunity to talk with optometrist and Dudley Local Optical Committee chair, Shamina Asif, about the historical contribution of Muslim scientists to the field of optics.
She shares insight below on five key figures who shaped the profession UK optometrists know today.
The Greeks said that sight occurred because of rays emanating from the eye itself, however he rejected this and through a series of experiments showed that light travelled in straight lines and that we can see due to light reaching the eye from a source.
Ibn Al-Haytham said that the retina was the centre of the vision and the impressions that it received were transferred to the brain by the optic nerve for the brain to create a visual image.
He proved his theory through experimentation, using dark chambers – this was unusual for his time as physics had been more like philosophy without experimentation.
Ibn Al-Haythem also studied lenses, experimenting with different mirrors: flat, spherical, parabolic, cylindrical, concave and convex. He treated the eye as a dioptric system by applying the geometry of refraction to it.
Ibn Al Haythem laid the foundations for optical devices like cameras – the word camera itself comes from the Arabic language.
OT took the opportunity to talk with optometrist and Dudley Local Optical Committee chair, Shamina Asif, about the historical contribution of Muslim scientists to the field of optics.
She shares insight below on five key figures who shaped the profession UK optometrists know today.
Improving cataract surgery: Yuhanna Ibn Masawaih
Yuhanna Ibn Masawaih, (Mesue the Elder) 777–857, was the first to discuss removal of cataracts with a hollow tube via suction rather than couching which involved using a bent needle to drive the lens into the posterior chamber. Couching was a dangerous procedure commonly practised in the west till 1748. It was a 10th century Iraqi scientist, Al Mawsli, who started practising the procedure of using a hollow tube to remove cataracts, which has formed the basis of how surgery is done today.Prolific author and detailed anatomical illustrations: Ibn Ishaq
Ibn Ishaq (Johannitus), 808–873, combined Greek doctrines and his own observations to produce 36 books describing cysts, tumours, ulcers and their causes, as well as detailing surgical techniques. He produced a detailed anatomical illustration of the eye – diagrams today that we find in our rooms explaining conditions to patients.Advanced surgical techniques: Al-Razi
Al-Razi (Rhazes), 860–932, contributed to Islamic ophthalmology, documenting advancing surgical techniques in his famous book Kitab Al-Mansouri – a medical manual which was used widely in medieval Europe.‘The father of optics’: Ibn Al-Haytham
The most revolutionary work in the history of optics was by Ibn Al-Haytham (Alhazen), 965–1040. He wrote the Book of Optics disproving the Greek theories of how the eye sees.The Greeks said that sight occurred because of rays emanating from the eye itself, however he rejected this and through a series of experiments showed that light travelled in straight lines and that we can see due to light reaching the eye from a source.
Ibn Al-Haytham said that the retina was the centre of the vision and the impressions that it received were transferred to the brain by the optic nerve for the brain to create a visual image.
He proved his theory through experimentation, using dark chambers – this was unusual for his time as physics had been more like philosophy without experimentation.
Ibn Al-Haythem also studied lenses, experimenting with different mirrors: flat, spherical, parabolic, cylindrical, concave and convex. He treated the eye as a dioptric system by applying the geometry of refraction to it.
Ibn Al Haythem laid the foundations for optical devices like cameras – the word camera itself comes from the Arabic language.
Other contributions
Other scientists include Al-Ghafiqi, who resided in Cordoba, Spain, and treated trachoma. This procedure was used until World War I. Ibn Isa from Baghdad, Iraq wrote the Notebook of the Oculist describing 130 eye diseases and was the first to point out that eye disease can be a consequence of general disease.
Today we know this is the case with systemic disease like diabetes and autoimmune conditions affecting the eye. He also described treatment of chalazions, styes, trichiasis and pterygium, all of which we are still practising today when advising patients of hot compresses and cleaning of eyelids.
Comments (9)
You must be logged in to join the discussion. Log in
Hamatum25 April 2021
Really interesting article but actually Ibn Ishaq (Johannitus) was a Nestorian Christian.
It could be also interesting to make an article about Christian contribution during the Renaissance.
Report Like 158
MoJo17 April 2021
A well written and informative article.
Report Like 216
usamah16 April 2021
Great article, an enjoyable read.
Report Like 303
Hamza Shafi16 April 2021
Love this article, very informative read and much needed. Many people are completely unaware of this as most of it has been omitted from the textbooks and curricula. Great work.
Report Like 218
Farahrizvi 16 April 2021
Excellent article. Very informative. It is true that there is alot of contribution to modern day science from Islam.
Infact Islamic medicine has a whole wealth of knowledge regarding the human being and nature holistically. This knowledge is unknown in the western world and fascinating to study, incorporating iridology and sclerology also which can reveal such precise information about a person's health issues. It is truly amazing.
Well written Shamina, thanks 😊
Report Like 181
Farahrizvi 16 April 2021
Excellent article. Very informative. It is true that there is alot of contribution to modern day science from Islam.
Infact Islamic medicine has a whole wealth of knowledge regarding the human being and nature holistically. This knowledge is unknown in the western world and fascinating to study, incorporating iridology and sclerology also which can reveal such precise information about a person's health issues. It is truly amazing.
Report Like 157
Mohammed Mahmud15 April 2021
Thanks Shamina for this nice article. A timely reminder during Ramadan to seek betterment in ourselves to serve our profession & the patients we see to the best of our ability.
Report Like 173
yass15 April 2021
Nicely written and an enjoyable read. Thank you and well done in collaborating all this information.
Report Like 177
Omar15 April 2021
Great article and timely to bring it to the forefront. Well done Shamina. We truly are standing on the shoulders of giants
Report Like 177