a French surgeon from Orléans. He is credited for making pioneer contributions in the fields of obstetrics, ophthalmology and pediatrics. He was a surgeon at Hôtel-Dieu de Paris, and a favored student of Ambroise Paré (1510–1590), who was also his father-in-law. Guillemeau, like Paré, was a surgeon to French royalty. In 1584 Guillemeau published Traité des maladies de l'oeil ("Treatise on eye diseases"), considered one of the best Renaissance-era works in ophthalmic medicine. He is also credited for providing the first description involving repair of palpebral coloboma, an eyelid defect he referred to as paupieres accurcies.
