they are ( 1 ) identification of a lateral canthal soft-tissue mass consisting of periosteum , lateral canthal ligament , and orbicularis muscle , ( 2 ) extensive subperiosteal soft-tissue mobilization of the lateral canthal soft-tissue mass ( lcstm ) from a point just superior to the zygomaticofrontal suture and inferiorly along the infraorbital rim to a point corresponding with a vertical line drawn from the pupil downward , and ( 3 ) cutting of all soft tissue , including orbicularis muscle from dermis to bone and from bone to conjunctiva , from the lateral canthal soft-tissue mass medially to a point equal to a vertical line drawn from the pupil downward .
C0031110
periosteum
C0262950
bone