The pathogenesis of vitreoretinal proliferation and traction: a working hypothesis

Med Hypotheses. 1990 Feb;31(2):157-9. doi: 10.1016/0306-9877(90)90012-4.


Traction retinal detachment due to proliferative vitreoretinopathy (PVR) is a serious complication of ocular trauma, retinal detachment, and previous vitreoretinal surgery. The cause is the active proliferation of fibroblasts, glial cells, and retinal pigment epithelial cells in the periretinal spaces, leading to the formation of contractile cellular membranes. The generation of growth and mitosis stimulation for these cells has remained obscure. We postulate that invading macrophages and local microglia secrete growth factors, notably PDGF (platelet-derived growth factor), which in turn mediates the mitogenic effects of transferrin (TF), a protein present in huge amounts in native vitreous, in plasma and in intraocular proliferative tissue.

MeSH terms

  • Eye Diseases / etiology
  • Eye Diseases / metabolism
  • Eye Diseases / pathology
  • Humans
  • Macrophages / pathology
  • Retinal Detachment / pathology
  • Retinal Diseases / etiology*
  • Retinal Diseases / metabolism
  • Retinal Diseases / pathology
  • Transferrin / metabolism
  • Vitreous Body* / metabolism
  • Vitreous Body* / pathology


  • Transferrin