Figure 3
From: Predictors for metamorphopsia in eyes undergoing macular hole surgery
Schematic diagram and optical coherence tomography image showing the mechanism of metamorphopsia before and after macular hole surgery. The photoreceptor cells near the center of the macula are detached from retinal pigment epithelium and efferently displaced. There are no photoreceptor cells that receive light from light sources ① and ② in the macular hole (MH) and there are two photoreceptor cells that receive light from light source ③. After the closure of the MH, the photoreceptor cells are slightly displaced from their original position, which generates metamorphopsia postoperatively. Dislocated Müller cells may also contribute to generate metamorphopsia, working as optic guide to transfer photons to dislocated photoreceptors.
