An optical (light) microscope is a laboratory device that uses visible light and lens systems to magnify small samples for detailed observation.

Live blood analysis is a method in which a small drop of blood taken from the fingertip is examined under a microscope. During the procedure, the sample is magnified and certain visual characteristics may be observed. The images obtained may be used for informational purposes in discussions related to lifestyle, dietary habits, and daily living factors. This application is not intended for diagnosis or treatment, and any findings may be considered alongside standard laboratory tests when appropriate.