R econstruction of complex eyelid defects presents a challenge. Composite defects that involve both the upper and the lower eyelid, or that extend deeply to involve the lateral canthus and the bony orbit, are particularly difficult to repair. Under these circumstances, the temporalis muscle flap provides vascularized tissue, which can be used in restoring structural support to the lid complex.The temporalis region provides several regional flaps. The temporalis muscle is a type III (Mathes and Nahai classification) fan-shaped muscle with its origin in the temporal fossa. It receives its blood supply from the anterior and posterior deep temporal arteries, which are branches of the internal maxillary artery. These course between the muscle and the periosteum, allowing for subperiosteal elevation. Resection of the zygomatic arch and the coronoid process of the mandible (1) can increase its reach. The presence of two independent vascular territories enables separate use of the temporalis fascia or muscle in the elevation of regional flaps, making it very versatile in head and neck reconstruction (1). It has been described for isolated upper eyelid defects (2-4) and orbital reconstruction (5-12). BACKGrounD: Eyelid reconstruction following oncological resection remains a challenge. Multiple techniques have been described for isolated upper or lower eyelid defects. oBJECTIvE: To describe the use of the temporalis flap for reconstruction of an eyelid defect involving both the upper and lower eyelids. METHoDs: Excision of a basal cell carcinoma was performed. This resulted in full-thickness defects of the upper and lower eyelids, the lateral canthus including upper and lower canthal tendons, the upper right midface, temple, lateral two-thirds of the eyebrow and forehead. The tumour was found to be adherent to bone and dissecting deeply into the lateral orbital cavity as well as along the orbital roof. rEsuLTs: The lateral orbital rim was reconstructed using the pre-bent titanium mesh implant. A temporalis muscle flap allowed for draping over the reconstructed orbital rim and to provide reconstruction of the tarsal plates of the upper and lower eyelids. The remaining large cutaneous defect, which involved more than half of the lower eyelid, was reconstructed using a large Mustarde cervical facial rotation flap. ConCLusIons: The temporalis muscle flap provides abundant well vascularized tissue and has been described for head and neck reconstruction. A novel technique allows reconstruction of both the upper and lower eyelids using the temporalis muscle in combination with local flaps.