Blood Perfusion in Human Eyelid Skin Flaps Examined by Laser Speckle Contrast Imaging—Importance of Flap Length and the Use of Diathermy

Abstract

Blood perfusion falls rapidly with distance from the base of skin flaps on the human eyelid, and diathermy reduces blood perfusion even further. Clinically, it may be advised that flaps with a width of 5 mm be no longer than 15 mm (i.e., a width:length ratio of 1:3), and that the use of diathermy should be carefully considered.