Purpose: Preoperative evaluation with detailed surgical planning is imperative to avoid potential complications in cosmetic eyelid surgery. Materials and Methods: Before undergoing cosmetic upper eyelid blepharoplasty, patients should be thoroughly evaluated. Patients should be examined for ptosis, dry eye syndrome, prolapsed lacrimal gland, and brow ptosis. In addition to the evaluation for dry eye syndrome, patients interested in cosmetic lower eyelid blepharoplasty should be assessed for ectropion, entropion, lid retraction, scleral show, lid laxity, and lagophthalmos. Preoperatively, risk factors for orbital hemorrhage, including hypertension, anti-platelet or anticoagulant medication, history of abnormal bruising of bleeding, or underlying diseases that may contribute to bleeding, should be assessed. Intraoperative management of cosmetic upper eyelid surgery complications should focus on decreasing the risk of postoperative ptosis, lagophthalmos, lid retraction, and lid asymmetry, with special attention to limiting the risk of visual loss secondary to orbital hemorrhage. Discussion: Management of cosmetic lower eyelid blepharoplasty complications should focus on methods to assess lower lid laxity, limit the risk of diplopia, and manage orbital hemorrhage. Results: Techniques to revise cosmetic eyelid surgery complications during the postoperative period will be described.