这个词是什么意思？
A subjective visual sensation with the eyes closed and in the absence of light. Phosphenes can be spontaneous, or induced by chemical, electrical, or mechanical (pressure) stimuli which cause the visual field to light up without optical inputs.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D010719 · MeSH 2026。
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