Ibn Abi Al-Hawafar wrote a treatise on ophthalmology, Natijat al-Fikar`alaj Amrad al Bassar (The Thoughtful Conclusions on the Treatment of the Diseases of Visions). For more detail click here.
Died on 735
Ibn Abi Ishaq was a grammarian and one of the earliest known grammarians of the Arabic language.
Ibn Abi Usaybia was a Muslim physician and historian of medicine. He was born in Damascus where he studied medicine before immigrating to Cairo; there he was physician at the hospital; he then became physician to the Emir Azeddin in Sarkar. For more detail click here.