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Letter to the Editor
Clinical course of acute zonal occult outer retinopathy in visual field and multifocal electroretinogram
  1. KANAKO YASUDA,
  2. MASAHIKO SHIMURA,
  3. MICHIRU NORO,
  4. MITSURU NAKAZAWA,
  5. MAKOTO TAMAI
  1. Department of Ophthalmology, School of Medicine, Tohoku University, Sendai 980–8574, Japan
  1. Masahiko Shimura, MD, Department of Ophthalmology, School of Medicine, Tohoku University, Sendai, 980-8574, Japan.

https://doi.org/10.1136/bjo.83.9.1088b

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    Editor,—Patients with acute zonal occult outer retinopathy (AZOOR) may present with a normal fundus examination and almost normal fluorescein angiography (FA), despite severe loss of visual field and electroretinogram (ERG) abnormalities.1 2 The lesion defined zones of the retinal receptor cells; however, the cause of the disease remain unclear.3 There is also no established conclusion about progression of visual field loss.1

    With a multifocal ERG (m-ERG), a large number of retinal locations can be stimulated simultaneously and local responses can be extracted independently in a single recording session. High resolution topographic mapping of retinal function also is possible.4A previous report indicates its efficiency in the diagnosis of AZOOR.5 There are no reports about the clinical course. Thus, using m-ERG and static perimetry (Humphrey 30-2), the alteration of retinal function in a clinical course of a …

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