BM undulation in eyes with CNV secondary to angioid streaks AS and AMD (a–j). (a), (c), (e), (g), (i), Infrared images. (b), (d), (f), (h), (j), SD-OCT. The superior and inferior portions of the SD-OCT images in (b), (d), (f), (h), and (j) that did not include retinal images were cropped. The scan length of the SD-OCT image in (h) was 6 mm, whereas it was 9 mm in the other SD-OCT images. Green lines in the infrared images (a, c, e, g, i) represent the scan lines of the corresponding SD-OCT images to the right (b, d, f, h, j). Red arrows indicate BM. The BM undulation was prominent in eyes with CNV secondary to AS (b, d, f, h) but mild, if present at all, in eyes with CNV secondary to AMD (j). BM breaks were found only in eyes with CNV secondary to AS (b, d, f, h).