ASSESSMENT OF FACIAL WRINKLES 129 2 Figure 1. Five-grade photographic scale used to evaluate wrinkles at the outer eye corners. Grade 1 is no wrinkles grade 2 is mild wrinkles grade 3 is mild/moderate wrinkles grade 4 is moderate wrinkles grade 5 is severe wrinkles. photos of the outer eye corners selected as described above, five general observers scored the eye corner wrinkles in the photos of the second group (164 subjects), who were used to establish the five-grade scale, and the third group (247 subjects), who were used to establish the nine-grade scale, respectively. Reproducibility of the nine-grade evaluation. For the determination of the reproducibility of scores according to the photo standards, scoring was done by the same five general observers one week after the initial scoring (to avoid errors resulting from being accus- tomed to the evaluation), using the nine-grade scales.

130 JOURNAL OF COSMETIC SCIENCE Efj•cts of facial site (the eye corners and forehead) on the wrinkle scores. Five general observers scored the wrinkles according to the five-grade scale on photos of the eye corners and forehead of the second group of subjects. These scores were compared with the consensus scores, and the consistency of each photo score was evaluated. The five-grade photo scale for forehead wrinkles is shown in Figure 2. Age-related changes in the wrinkle score at each site of the face. The scoring of wrinkles at eight sites of the face (forehead, glabella, eye corners, upper eyelids, lower eyelids, cheeks, 5 2 4 147 Figure 2. Five-grade photographic scale used to evaluate wrinkles at the forehead. Grade 1 is no wrinkles grade 2 is mild wrinkles grade 3 is mild/moderate wrinkles grade 4 is moderate wrinkles grade 5 is severe wrinkles.