Canfield’s novel imaging system, with an open-air Overhead Lighting Environment (OLE) facilitates clinical assessment of facial skin aging attributes by simulating how the subject is perceived by the human eye in everyday settings. Historically, facial skin imaging has been accomplished using closed imaging environments for illuminating the subject with uniform diffused lighting, while eliminating unwanted effects of ambient light. While a closed environment is also ideal for fluorescence and absorption imaging, direct illumination and secondary reflections may reduce contrast of skin topographical features. Natural lighting, under which a subject’s face is typically perceived, is overhead and directional. Directional / raked lighting reveals surface textures by illuminating features facing the light, while creating shadows for those facing away.
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Canfield 2D and 3D imaging systems are valuable tools for visualizing changes to the skin over time, and offer analysis methods that aid in claim substantiation. 3D images captured with PRIMOS provide objective, detailed understanding of physical changes to skin microstructure within a small-field view. 2D full-face images captured with VISIA-CR and analyzed in VAESTRO generate correlated data, and a global aesthetic view of treatment effects on a subject's overall appearance.
Broad-spectrum sunscreens protecting from UV-radiation are useful in the management of melasma, but they failed to prevent relapses. The impact of the visible light on pigmentation is now demonstrated. However, using sunscreens effective against the entire visible light spectrum is almost impossible to use in daily practice. We recently demonstrated that short wavelengths of the visible spectrum (415 nm) can induce a prolonged hyperpigmentation in healthy volunteers while longer wavelengths (630 nm) do not affect pigmentation. Our aim was to evaluate the protective properties against melasma relapses of a sunscreen protecting against UVA/UVB and the shorter wavelengths of visible light compared to a sunscreen with UVA/UVB protection but without visible light protection.
In our experience with both approaches, monitoring patients at risk for melanoma using TB photography was associated with lower biopsy rates and lower nevus-to-melanoma ratios than using DELM and facilitated detection of new and changing lesions. In both cohorts, the majority of melanomas detected on follow-up arose de novo.
Currently, internal laser-assisted lipolysis (iLAL)1-7 represents an evolving innovative technique that enhances the results over standard liposuction by providing selective thermo-lipolysis and thermo-denaturation of structural proteins in collagen-containing fibrous septae and reticular dermis. Of the two effects, the singular advantage of iLAL resides its ability to deliver sufficient and controlled thermal energy in a dose-response manner for collagen denaturation (water), collagenesis, remodeling and promotion of tissue tightening through coagulation. To date there have been no objective studies that quantify the relationship of lower dermal temperatures to surface skin temperatures that results in measurable shrinkage of tissue areas. This limited clinical study attempts to correlate changes in abdominal skin contraction achieved as a consequence of laser heating from a 1064nm/1320nm device during each phase of the procedure to delineate what contribution, if any, each heated layer provides to skin contraction. The objective observations were correlated to histological findings.
Dermatologists and aesthetic skin care professionals are typically called upon to treat patients with various skin conditions, often in the facial area. In most cases, these conditions present themselves as localized discolorations and reflect skin tone variations or disturbances. Included among the unique challenges to the skin care professional are: the documentation as to the extent and nature of these conditions, the ability to communicate the need for specific treatments to the patient, and the ability to monitor the effectiveness of treatments over time. Where the visible presentation is subtle or is not visible to the unaided eye, these challenges are further exacerbated.
