[Effectiveness of ultrasonic echography in the examination of patients before vitrectomy].
D005128:Eye Diseases / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D011300:Preoperative Care; D014463:Ultrasonography; D014821:Vitrectomy; D014822:Vitreous Body / Q000473:pathology*
Effektivnost' ul'trazvukovoĭ ékhografii pri obsledovanii bol'nykh dlia vitreal'noĭ khirurgii.