A binocular indirect ophthalmomicroscope (BIOM) for non-contact wide-angle vitreous surgery

Graefes Arch Clin Exp Ophthalmol. 1987;225(1):13-5. doi: 10.1007/BF02155797.


The binocular indirect ophthalmomicroscope (BIOM) incorporates the principles of indirect ophthalmoscopy in the operating microscope. When used with an image inverting system, it enables noncontact 70 degrees-90 degrees wide-angle observation of the fundus during vitreous microsurgery.

MeSH terms

  • Humans
  • Microsurgery / instrumentation*
  • Ophthalmoscopes*
  • Vitreous Body / surgery*