To report a case of a macular hole formation following rupture of retinal arterial macroaneurysm.

A 75-year-old female visited our clinic with a chief complaint of decreased vision in her left eye. We completed full ocular examinations, including fluorescein angiography (FAG), and optical coherence tomography (OCT).

The best corrected visual acuity was 0.6 in the right eye and 0.04 in the left. Fundus examination showed a retinal arterial macroaneurysm in supratemporal artery of the left eye. Fluorescein angiography showed hyperfluorescence in the macroaneurysm site. The optical coherence tomography showed macular and submacular hemorrhage. We performed intravitreal gas injection to treat the submacular hemorrhage. One month after the intravitreal gas injection, a full-thickness macular hole developed.