PDF(Pubmed)
Abstract：
Ring scotoma is an annular field defect centered on fixation. Age-related macular degeneration in the elderly and hydroxychloroquine toxicity in younger patients are usual causes of central ring scotoma. We report bilateral ring scotoma as the presentation of adult onset Stargardt\'s disease. Central ring scotoma has a precise localizing value, to a lesion involving macula.
摘要：
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