An illumination probe may include a handle, an optic fiber, a tube, and an illumination source connector. The tube may include a tube distal end and a tube proximal end. The tube may include a tube aperture of the tube distal end. The tube proximal end may be disposed in the handle wherein the tube distal end extends out from a distal end of the handle. The optic fiber may include an optic fiber distal end and an optic fiber proximal end. The optic fiber may be disposed in the illumination source connector, the handle, and the tube wherein the optic fiber distal end is disposed in the tube. The tube aperture may be configured to modify a property of incident illumination light.