Ophthalmological instruments of Al-Halabi fill in a gap in the biomedical engineering history

Figure 8 Spear (instrument number 9 in Figure 1) used in treatment of symblepharon, ectropion, and sebaceous cyst. Citation: Sezgin F, Neubauer E. Volume IV: Catalogue of the collection of instruments of the institute for the history of Arabic and Islamic sciences. In: Sezgin F. Science and technology in Islam. Frankfurt am Main, Germany: Institute for the History of Arabic-Islamic Science, 2010: 45. Copyright ©The Author(s) 2010. Published by Institute for the History of Arabic-Islamic Science (Institut für Geschichte der Arabisch-Islamischen Wissenschaften). The author has obtained the permission for figure using from the Institute for the History of Arabic-Islamic Science (Institut für Geschichte der Arabisch-Islamischen Wissenschaften) (Supplementary Material).