Abstract: A hand-held illuminated eye loupe includes an open top and bottom housing with an internal magnifying lens. A light source assembly is removably coupled to one side of the housing. The light source assembly includes a hollow chassis configured to retain a LED which provides focused light beam adjacent to the open bottom of the housing. The LED has positive and negative terminal wires. Four cell batteries are operatively stacked between the negative terminal wire and a connector plate. A light switch assembly is coupled to the chassis and configured to embed a portion of the positive terminal wire. The embedded terminal wire includes a curved end which makes electrical contact with the connector plate to turn the LED on when the switch is pushed toward the LED. The curved end pulls away from the connector plate to turn the LED off when the switch is pushed away from the LED.