A 15-year-old girl presented with blurred vision after being hit by an elbow on her left eye. Her best-corrected visual acuity (BCVA) was 16/20. On fundus examination, both a choroidal rupture that formed a crescent shape concentric to the optic disc and a subretinal hemorrhage were detected (fig. ). Optical coherence tomography (OCT) showed that the juxtafoveal retinal pigment epithelial layer with Bruch's membrane was disrupted, and the inner segment/outer segment (IS/OS) of the photoreceptor junction and the external limiting membrane (ELM) layer were distorted with suspected pinpoint disruption (fig. ).\nAfter 3 weeks, her visual acuity reduced to counting fingers. Fundus examination revealed that the subretinal hemorrhage had absorbed and the choroidal rupture had expanded. The crescent-shaped window defect including the fovea was observed on fluorescein angiography (FAG) (fig. ). Wider disrupted layers of the RPE, the IS/OS junction, and the ELM at the corresponding area were detected in OCT. When compared with the first medical examination after the injury, the IS/OS junction and the RPE adjacent to the ruptured site were hardly distinguishable, although they were originally clearly observed (fig. ).\nSteroid pulse therapy (methylprednisolone 500 mg intravenous for 3 days and prednisolone 30 mg oral, tapering for 11 days) was started in another hospital, and 3 months after the injury, visual acuity increased to 20/125. Five months later, OCT revealed that the size of the expanded choroidal rupture had reduced, and the adjacent retina had improved sufficiently to distinguish the IS/OS junction and the RPE. However, FAG disclosed a choroidal neovascular membrane originating from the nasal edge of the choroidal rupture (fig. , fig. ). An intravitreal bevacizumab (Avastin, 1.25 mg/0.05 ml; Genentech, Inc., San Francisco, Calif., USA) injection was administered, and 1 month later, the patient's BCVA of the left eye had improved to 20/32, and the CNV had shrunk (fig. , fig. ). Also the IS/OS junction and the RPE had improved sufficiently and were able to be distinguished (fig. ).
A 48-year-old male obtained a whiplash neck injury and a fracture of the articulate processes of the 7th neck vertebrae from a traffic accident. Two days later, he reported blurred vision in the left eye (LE). Although the best corrected visual acuity (BCVA) was 20/25, Amsler grid test was positive. There was preretinal paramacular hemorrhage on fundus examination. OCT, OCTA, visual field (VF) examination, fluorescein angiography (FA), and multifocal electroretinogram (mfERG) were performed. To analyze foveal structure and thickness, we utilized a swept-source (SS)-OCT and OCTA system (Triton, Topcon, Tokyo, Japan). The central retinal thickness (CRT) was defined as the average thickness in the central circle area. For OCTA, 4.5 × 4.5 × 4.5 mm3 macular cubes were obtained. En face images of the retinal vasculature were created from the superficial capillary layer (SCL) and deep capillary layer (DCL), based on the automated layer segmentation. The FAZ area was defined as the area inside the central border of the capillary network and was manually delineated on the inner border using the standard software and then calculated automatically. VF was measured in macular program (M program, Octopus 900, Haag-Streit, USA) and mfERG and FA (Canon) were performed accordingly. OCT showed no fluid but a slight disruption of the outer plexiform layer (OPL), outer nuclear layer (ONL), retinal pigment epithelial (RPE) layer, and photoreceptors (PR) with hyper-reflectivity of the ellipsoid zone (EZ) and interdigitation zone (IZ) and remained unchanged throughout the 1-year follow-up (Fig. ). CRT was 241 and 257 μm for the LE and RE, respectively. VF showed fixed central scotoma (Fig. ). mfERG was unremarkable. FA revealed late paramacular hyperfluorescence in both eyes. OCTA showed an enlarged FAZ area in the SCL of 334,402 μm2 in the LE as compared to 253,521 μm2 in the RE, as well as in the DCL, measuring 814,944 μm2 in the LE as compared to 311,858 μm2 in the RE, respectively (Fig. ).