Fluorescein angiography is notably effective for detecting what in ocular health?

Fluorescein angiography is a specialized imaging technique that involves the intravenous injection of a fluorescent dye, fluorescein, to visualize the blood vessels in the retina and choroid. This method is particularly effective for detecting abnormalities in ocular blood vessels, as it allows for detailed assessment of circulation and identifies issues such as retinal vascular occlusions, diabetic retinopathy, and choroidal neovascularization.

By capturing a sequence of images after the dye is injected, practitioners can observe the flow of blood through the retinal vessels and identify any areas of leakage, blockage, or other vascular anomalies that may be affecting the eyes. This ability to visualize blood flow is critical in diagnosing and managing various ocular conditions that arise from vascular changes, differentiating it from other evaluations like measuring intraocular pressure or assessing visual acuity, which do not provide direct information about blood vessel health.