Object: Electronic Auction - Acquisition Of Ophthalmological Materials For Cataract And Vitrectomy Surgeries With Transfer Of Use Of Equipment On A Lending Basis; To Serve The Ophthalmology, Otorhinolaryngology And Oral And Maxillofacial Surgery Unit - Uocb Of The Hospital De Clínicas Of The Federal University Of Triangulo Mineiro (Hc-Uftm) - Ebserh Branch.