Abstract: An ophthalmic device including: a body having: a posterior surface which is adjacent to an eye surface when the ophthalmic device is worn; an anterior surface defining a height of the body above the eye surface; a retention portion, configured to reside between an eyelid and the eye surface, the retention portion bordered by a portion of the anterior surface, and having a height difference of at least 1 mm over at most a 1 mm distance.