2.5K views · 26 reactions | Have you ever used a vein finder? They're simple, yet very effective infrared lights that are used to pinpoint the exact spot where veins can be treated. | Metro Vein Centers | Facebook

Using a vein finder to ensure accurate and comfortable injections... What you're seeing here is something known as a near-infrared (NIR) vein visualization systems. Vein finders use NIR light (typically in the 700–1000 nm wavelength range), which penetrates the skin more deeply than visible light, up to about 10–15 mm. Hemoglobin in the blood absorbs NIR light, while surrounding tissues reflect it, creating a contrast between veins and other tissues. A specialized NIR-sensitive camera captures t

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