| Purpose: To describe the patterns of visual field defect in patients with acute zonal occult outer retinopathy (AZOOR).
Methods: Retrospective study regarding the patterns of visual field defect in 20 eyes of 16 patients (mean age is 38.5 years; female is 12 patients; male is 4 patients) with AZOOR. We performed Goldmann perimetry, optical coherence tomography, multifocal electroretinograms, and full-field electroretinograms, besides routine ophthalmic examination during follow-up period from 6 months to 8 years.
Results: In 16 patients with AZOOR, there were 12 patients unilaterally and 4 patients bilaterally. All patients had an acute visual field defect or/and a visual disturbance. The visual field defect of 17 eyes appeared in one zone, 3 eyes in multifocal areas. The 18 eyes had an enlarged blind spot of Mariotte which spared the macula. In the remaining 2 eyes, large blind spot involved the macula which resulted in a large central scotoma. During follow-up, the range of visual field defect was unstable within one year, however, after that, visual field defect tended to shrink.
Conclusions: In patient with AZOOR, an enlarged blind spot of Mariotte with macular sparing is the most common pattern of visual field defect. Some patients have a large central scotoma involving the macula and blind spot. The range of visual field defect tends to shrink but it does not disappear. |
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