.. . that an "'iridectomy "'is the surgical removal of part of the iris, most frequently performed in the treatment of closed-angle glaucoma and iris melanoma?
12.
He introduced iridectomy for glaucoma, identified retardation of the eyelid in Basedow's disease, Also, he provided early descriptions of optic neuritis ( 1860 ), chronic progressive external ophthalmoplegia ( 1868 ) . and papilledema ( involving four patients with brain tumor and a swelling of the optic disc ).