SD-OCT at the fovea of 3 cases before and after FTMH development. Note the presence of a hyperreflective line (yellow circle) preceding FTMH formation in each case. The hyperreflective vertical line extends from the area of the ellipsoid zone band to the ILM in the central fovea in each case. (Case A) In this 69-year-old man, a hyperreflective line at the fovea is noted in the left eye (A1) which progressed to a stage 2 FTMH (A2) just 2 months later. (Case B) In this 88-year-old man, a hyperreflective line at the fovea is noted in the right eye (B1), which evolved into a stage 4 FTMH (B2) 14 months later. (Case C) In this 62-year-old man, a hyperreflective line at the fovea is noted in the left eye (C1), which evolved into a stage 4 FTMH (C2) 4 months later.