The eye
object · 4 works · 4 mentions · 8 anchored passages
العين · the eye · al-ʻayn · al-ʿayn · that other eye · the eye of the head · the sensible eye · ʻayn · العين الحسية · تلك العين الاخرى
in the texts
Mukhtaṣar fī ʻilm al-nafs al-insānīyah
The organ of sight, functioning in this window as an outward sense, as the model for intellect's failures of apprehension, and as the site of weeping.
the outward sense does not apprehend the sensible except together with the matter that discloses it, such as the eye and the ear and the rest.
just as the eye is unable to apprehend what touches it, so likewise the intellect is unable to apprehend
and when the eyelids close, the said moisture runs down.
al-Saʻādah fī falsafat al-akhlāq
The organ of sight, used as the simile for graded intellectual vision, for the contrast between the tiring sensible eye and the strengthening intellectual eye, and for the illusions that model false syllogisms.
for there befalls the soul, when it looks at the intelligible, what befalls the eye when it looks at the sensible;
And when he wished to ascend in the natural things, which are the matters possessing matter, to the matters that have no matter, he found between these two stations matters having a share in nature and a share in what is after nature, so he made on them his book On the Soul and his book On Sense and the Sensible.
among them is he who sees distant things with a clear seeing, and among them is he who does not see them even from near except as a thing is seen from behind a veil.
Risālat baqāʼ al-nafs baʻda fanāʼ al-jasad
Al-ʿayn with its shabakah or retina, named as the place the older philosophers lodged the seeing faculty and, in the modern account, merely the surface upon which the etheric undulation first falls.
When the effect of the etheric vibration reaches the retina of the eye from the object seen, it produces a vibration in the optic nerve;
so what is conveyed from the eye turns into a visual undulation, and what is conveyed from the ear turns into an auditory undulation (etc.
that is, the apparatus of visual reception receives the external undulations by means of the optic nerve and registers them in its thinking faculty, that is, in a vesicle or several cerebral vesicles appointed and set apart for the reception of this effect;
Kitāb mīzān al-ḥaqq fī al-manṭiq
The organ of sight, the first referent of the shared term ʻayn in the equivocation example
the eye (ʻayn) may have drowsiness creep into it, and this is an ʻayn (pointing to a spring of water), therefore this ʻayn may have drowsiness creep into it.