Figure 2.

Tano scratcher applied to a macular hole in a postmortem eye. (A) Dissecting microscope image of a macular hole. The retina surrounding the macula was divided into four areas (numbered 1–4). (B) A low magnification scanning electron microscopy image of the specimen after treatment with a Tano scratcher. No Tano scratcher was applied to area 1. Light pressure was applied to area 2. Medium pressure was applied to area 3. Heavy pressure was applied to area 4, which shows disruption of the internal limiting membrane and exposure of the nerve fiber layer. Some of the cellular tissue has fallen into the hole.