Coarsening of choriocapillaris on optical coherence tomography angiography as a sign of acute idiopathic blind spot enlargement

• Published in: American journal of ophthalmology case reports 2022-06, Vol.26, p.101558, Article 101558
• Main Authors: Gunasagaran, Hema Lattha, Waldie, Anna, Xiao, William, Moore, Phoebe
• Format: Article
• Language: English
• Subjects: Acute idiopathic blind spot enlargement; Case Report; Imaging
• ISSN: 2451-9936; 2451-9936
• DOI: 10.1016/j.ajoc.2022.101558

Acute idiopathic blind spot enlargement is a rare syndrome that is classified within a spectrum of primary inflammatory choriocapillaropathies with circumscribed outer retinal dysfunction. We observed coarsening of the choriocapillaris on en-face optical coherence tomography angiography when compared to the fellow eye in a patient with suspected acute idiopathic blind spot enlargement. Increased granularity of the choriocapillaris as imaged by optical coherence tomography angiography may assist in the diagnosis of acute idiopathic blind spot enlargement, particularly during a global pandemic when access to electrodiagnostics is limited. This finding supports the current evidence of choriocapillaris hypoperfusion in the pathogenesis of acute idiopathic blind spot enlargement. •Acute idiopathic blind spot enlargement is a rare syndrome.•It is classified within a spectrum of primary inflammatory choriocapillaropathies.•Optical coherence tomography angiography is useful in diagnosing acute idiopathic blind spot enlargement.•Coarsening of the choriocapillaris as imaged by optical coherence tomography angiography is seen in this disease.