A diamond-dusted membrane scraper. The membrane scraper tip is well visualized on the surface of the retina. The membrane is visible at the leading edge of the scraper.

Forceps and membrane. Scrolled membrane is noted on the horizontal optical coherence tomography scan (top). Forceps are noted on the vertical scan (bottom) with significant tissue shadowing form the metallic tips.

Proliferative diabetic retinopathy and membranes. Optical coherence tomography reveals multiple layers of proliferation that help to facilitate identification of surgical planes. (Images courtesy of Justis Ehlers, MD)