Kitāb Tadhkirat al-kaḥḥālīn (Memorandum book of Oculists)
This is a copy of Kitāb Tadhkirat al-kaḥḥālīn (Memorandum book of Oculists) by ’Alī ibn ’Īsá al-Kaḥḥāl (d. 400 AH/1010 CE), a widely read opthalmological manual composed in Baghdad.
Drawings of two opthalmological instruments. This copy was completed by an unnamed scribe in 1082 AH/1671-2 CE. A later hand has labelled the top instrument: 'this is the form of the rounded cataract needle', with one end labelled: 'this is four-sided'; and the other: 'this is rounded'. The same hand has labelled the lower instrument: 'this is the illustration of the hollow needle which is called al-Khurasani. It draws up the fluid which is inside it and it comes out at the head of the needle. However, there is a danger, because it can suck out the eye.' On this lower instrument, the right-hand, pointed, end, is labelled: 'it enters the eye', and the left-hand end is labelled: 'location of the cataract'.
49E251: optical instruments