[The aging eyelid].

Surgery of the aging eyelid makes great demands on the oculoplastic surgeon regarding preoperative diagnostics as well as choosing the ideal surgical method. This is not only important regarding reconstructive anatomic function but also for aesthetic aspects. This paper gives a résumé of modern diagnostics and therapy of the involutional syndrome of the eyelid. Treating ptosis of the eyebrow, blepharoplasty, blepharoptosis as well as malposition of the lower lid such as ectropion and entropion not only has an impact on the visual system but also on the individual facial features. Considering and treating this makes the highest demands on the oculoplastic surgeon to consider and treat the above problens in order to achieve ideal results.