A patient with a macular pit, defined as a focal scleral excavation, was examined. The axial length of the pit was 30.0 mm. Ophthalmoscopic examination showed a yellowish oval lesion within a wide area of chorioretinal atrophy. A ringlike low reflectance pattern was detected on infrared examination (Figure, A). Spectral-domain optical coherence tomography revealed a focal scleral ectasia with no overlying retina (Figure, B). The sclera was approximately one-third thinner (98, 77, and 50 μm for the pit’s floor, temporal wall, and nasal wall, respectively), and the choroid was obliterated. The pit had a homogeneous low autofluorescence. Fluorescein angiography showed a branch of a posterior ciliary artery in the vicinity of the lesion. The pit was slightly hyperfluorescent in the late frames.
Freitas-da-Costa P, Falcão M, Carneiro Â. Infrared Reflectance Pattern of Macular Pits in Pathologic Myopia. JAMA Ophthalmol. 2015;133(6):e1580. doi:10.1001/jamaophthalmol.2015.80