How to do eye imaging

Many people are not familiar with eye imaging, but it is indeed becoming gradually popular in our daily lives. Because eye imaging can help people improve many eye problems and treat related eye diseases, it is particularly important to understand the relevant knowledge and know the conditions for eye imaging. If you need it, you can learn more about it.

1. Eye Imaging

Fundus fluorescein angiography is an examination method in which a dye that produces a fluorescent effect is quickly injected into the blood vessels, and the fundus is observed or photographed using an ophthalmoscope or fundus camera with a color filter. As the dye flows with the blood flow, it can dynamically outline the morphology of blood vessels. Combined with the fluorescence phenomenon, the contrast and visibility of blood vessels are improved, allowing some subtle vascular changes to be identified. The blood supply pathways and vascular morphology of the choroid and retina are different, so lesions in these two layers of tissue can be differentiated during angiography. Choroidal fluorescence can bring out the condition of the retinal pigment epithelium. Damage to barriers such as the vascular wall, pigment epithelium and inner limiting membrane of the retina can cause leakage of the dye, so that many conditions that cannot be discovered with an ophthalmoscope alone can be examined. In addition, continuous photography with a fluorescent fundus camera can make fundus examination results more objective, accurate and dynamic, thereby providing valuable basis for clinical diagnosis, prognosis evaluation, treatment, efficacy observation and exploration of pathogenesis.

2. Precautions

The most important thing is that only patients with healthy liver and kidney functions can undergo the procedure, and afterward they have to drink a lot of water to excrete the contrast agent. The biggest side effect is that the skin all over the body turns yellow, but I really don't see any greater dangers.

The most important thing is that only patients with healthy liver and kidney functions can undergo the procedure, and afterward they have to drink a lot of water to excrete the contrast agent. Personally, I think the biggest side effect is that the skin all over the body turns yellow, but I really don't see any greater dangers. If the operation is performed on a patient with poor cardiovascular system, liver and kidney function, there may be big problems, or at least the rescue will be difficult, because the degradation of the contrast agent is extremely weak and it depends entirely on the liver and kidney function for excretion.