A vitrectomy is done, when the vitreous is gone!
Meyer
Carsten H
CH
Department of Ophthalmology, University of Bonn, Bonn, Germany.
D005858:Germany; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D009885:Ophthalmology / Q000266:history; D014821:Vitrectomy / Q000266:history*