What is ophthalmology “photography”?

This is fundus fluorescence photography. It uses sodium fluorescein as a contrast agent and is quickly injected into the forearm vein. When the sodium fluorescein enters the fundus blood vessels with the blood flow, it removes a set of color filters. The fundus camera continuously captures the fluorescent state emitted by the excitation light when the dye circulates outside the fundus blood vessels to observe the dynamic circulation process of the retina, so as to understand the fine structure of the fundus blood vessels and the changes in microcirculation, which provides insights into the pathogenesis of many fundus diseases. Provide basis for mechanism, diagnosis, treatment and prognosis assessment.