What does ffa medicine mean?

1. fundus fluorescein angiography. Fluorescein fundus angiography is an ophthalmic examination technique that rose in the 196s. Using fluorescein sodium as imaging agent, the forearm vein was injected rapidly. When fluorescein sodium entered the fundus blood vessels with the blood flow, the fundus camera without a set of color filters was used to continuously photograph the fluorescent morphology emitted by the excitation light when the dye outside the fundus blood vessels circulated, so as to observe the dynamic cycle of the retina, so as to understand the changes of the fine structure and micro-cycle of the fundus blood vessels, and provide basis for the pathogenesis, diagnosis, medical disorder and prognosis evaluation of many fundus diseases.

2. free fatty acid