Seidel Test — Detecting Aqueous Leakage Made Simple The Seidel test is a quick and reliable clinical method to detect aqueous humor leakage from the anterior chamber — commonly seen after ocular trauma, postoperative wound dehiscence, or corneal perforation. After applying fluorescein dye to the ocular surface, a leaking aqueous stream appears as a pale or clear streak washing away the bright green background under cobalt blue illumination. This simple, non-invasive test remains an essential par