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Eyelid resurfacing
Author(s) -
Harris David M.,
Fried Daniel,
Reinisch Lou,
Bell Thomas,
Schachter Daniel,
From Lynn,
Burkart John
Publication year - 1999
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/(sici)1096-9101(1999)25:2<107::aid-lsm3>3.0.co;2-2
Subject(s) - wrinkle , dermis , eyelid , erythema , papillary dermis , laser , reduction (mathematics) , epidermis (zoology) , medicine , dermatology , nuclear medicine , irradiation , surgery , ablation , materials science , biomedical engineering , anatomy , optics , physics , geometry , mathematics , nuclear physics , gerontology
Background and Objective Laser resurfacing of eyelids was examined in a series of experiments designed to measure beam parameters, surface temperatures, ablation characteristics, thermal damage, tissue responses and clinical outcomes. These data were collected for the purpose of developing a logical basis for clinical dosimetry. Study Design All experiments were conducted with similar short‐pulse CO 2 lasers (TruPulse, Albuquerque, NM) where the beam had been carefully characterized and calibrated. The chronological sequence examined begins with the photophysical laser/tissue interactions during the first few μsec of irradiation and ends with an evaluation of the efficacy of wrinkle reduction nine months after treatment. Results Eyelid tissue removed by the first and second passes consisted mostly of epidermis with about 38 μm of thermal damage into the papillary dermis. Erythema resolved within four weeks and most patients experienced 70–100% wrinkle reduction by nine months. Conclusion A layer of contracted dermal scar tissue that replaced the thermally challenged zone in the dermis is identified as the substrate for wrinkle reduction. The data support the following dosimetry for periorbital wrinkle reduction: One pass 4–6 J/cm 2 (350–500 mJ into a 3 × 3 mm spot). A second treatment after 9–12 months may be more beneficial than a second pass. Lasers Surg. Med. 25:107–122, 1999. © 1999 Wiley‐Liss, Inc.