Recent progress in vitreous surgical techniques affords patients with intravitreal hemorrhages a chance for improved vision. However, careful selection of those cases which will be most benefited and their preoperative evaluation for choice of surgical procedure are crucial.
One hundred patients with vitreous hemorrhages were examined ultrasonically, to show the extent and nature of intraocular changes. The ultrasonic patterns were classified according to the cause (spontaneous or traumatic), location (anterior or posterior), and density of the hemorrhage, and the presence of membranes. Patients had follow-up for at least one year to determine those ultrasonic patterns that predicted the potential benefit from surgery. These data indicated that hemorrhage in the solid anterior vitreous, moderate density of the hemorrhage, or the presence of membranes proved the most reliable predictors.
Coleman DJ, Franzen LA. Vitreous SurgeryPreoperative Evaluation and Prognostic Value of Ultrasonic Display of Vitreous Hemorrhage. Arch Ophthalmol. 1974;92(5):375-381. doi:10.1001/archopht.1974.01010010387003