A 40-year-old healthy man visited our outpatient clinic with bilateral blurring of vision for 10 days, after watching a lightning strike about 2 m away through an open window. He was not using a computer or telephone at that moment and was not holding or leaning out of the window. He immediately noted a yellow after-image, but he experienced vision decline only after a day. There was no history of smoking, sun gazing, or exposure to a solar eclipse or welding arc. On examination, best-corrected visual acuity was 20/70 N10 OU. Eyelids, adnexa, and anterior segments—including the pupillary reactions—were unremarkable bilaterally. Both fundi showed a faint yellow spot at the central fovea (Figure 1A and B). Color vision, contrast sensitivity, and visual fields (Humphrey 10-2, macular program) were unaffected. The Amsler grid test revealed bilateral metamorphopsia. Spectral-domain optical coherence tomography (OCT; Topcon 1000) showed central hyperreflective echoes and disruption of the inner segment–outer segment junction in each eye (Figure 1C and D). Fundus camera–based autofluorescence (FAF; Zeiss Visupac 450 Plus IR), with excitation and barrier filters set at bandwidths of 510 to 580 nm and 650 to 735 nm, respectively, revealed bilateral increased central hypoautofluorescence and decreased parafoveolar hypoautofluorescence (Figure 1E and F). After 1 month, best-corrected visual acuity improved to 20/50 OD and 20/40 OS; the inner segment–outer segment disruption persisted in each eye. By 12 months, best-corrected visual acuity had improved to 20/25 N6 OD and 20/20 N6 OS. Fundi showed resolution of the yellow spot into a faint ring in each eye (Figure 2A and B). Optical coherence tomography revealed minimal inner segment–outer segment defects (Figure 2C and D); the macular thickness was essentially unchanged. The Amsler grid test showed minimal distortion in each eye. Imaging by FAF revealed normalization of the macular autofluorescence pattern in each eye (Figure 2E and F).