Chronic exposure to sunlight induces clinical, histological and physiological changes that are described as photoaging. To assess the resulting skin changes different clinical and photographic scores have been evaluated. Regarding different scoring systems a standardized grading system would be useful in a variety of indications, in particular to improve the quality of epidemiologic and clinical studies of photodamage. Photonumeric grading is considered superior to descriptive scales; however, the combination of both may suggest an advanced assessment of photodamage.
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Kappes et al. (2003) studied this question.
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