Digital image processing measurement of the @entity3066 in @entity2743 and XXXX .

@entity1 @entity2194 @entity2743 @entity3066 @entity1736
OBJECTIVE: This study used image processing techniques to quantify the @entity3066 of @entity1 with Graves upper eyelid retraction and @entity1736 . DESIGN: The study design was a cross-sectional study. @entity1 : A total of 29 @entity1 with @entity2743 , 22 @entity1 with @entity1736 , and 50 @entity1 with no history of @entity2194 participated. INTERVENTION: The images of the palpebral fissure of all @entity1 were transferred to a personal computer and processed with NIH Image 1.55 software. MAIN OUTCOME MEASURES: The following parameters were analyzed: the curvature of the @entity3066 , the position of the contour peak relative to the midline, and the ratio between the temporal and nasal upper quadrant areas of the palpebral fissure. RESULTS: All @entity3066 could be fitted with second-degree polynomial functions. The mean temporal/nasal area ratio was 1.33 mm in @entity1 with @entity2743 , 0.92 mm in @entity1 with @entity1736 , and 1.04 mm in control subjects. The peak of the @entity3066 was found to be lateral to the midline in control subjects (1.05 mm) and in @entity1 with @entity2743 (2.09 mm). In @entity1 with @entity1736 , the peak was 0.69 mm medial to the midline. Overall, the distance between the midpupil and the upper eyelid margin was correlated with several factors: the degree of curvature, the position of the peak of the eyelid contour, and the temporal/nasal area ratio. CONCLUSIONS: In Graves eyelid retraction, the curvature of the upper eyelid is enhanced, the peak of the contour is displaced laterally, and the temporal upper quadrant area is increased. Conversely, in @entity1736 , the eyelid is almost flat, the peak of the contour is displaced medially, and the upper quadrant area is diminished. The lateral segment of the upper eyelid is more involved than the nasal segment in both Graves upper eyelid retraction and @entity1736 .
