Fig. 1
The 25 points that were analyzed to obtain vitreomacular interface scores. An investigator confirmed separation of the posterior vitreous membrane from the retina which was defined as two lines of vitreous posterior border and retinal interface using the enhanced vitreous visualization mode at 25 1.5-mm-width macular points within 6 × 6 mm2 areas centered the fovea. Specifically, we assessed the separation at the macular point 1 (yellow dot) at the fovea, macular points 9 (orange and yellow dots) involving vertexes and midpoint of the side of 3 × 3 mm2 square centered the fovea and the macular point 1, and macular points 25 (red, orange, and yellow dots) involving vertexes and points divided into quarter of the side of 6 × 6 mm2 square and the macular points 9. Vitreomacular interface scores were calculated by summing up the points of the separation at 1, 9, and 25 macular points