What is the characteristic of upturned eyes in lash styling?

In lash styling, upturned eyes are defined by their natural lift at the outer corners. To enhance this feature, the cat-eye extension style is particularly effective. This styling technique involves using longer extensions towards the outer edges of the eyes, which accentuates the upward shape and creates a more dramatic and elongated appearance. By tapering the length from the outer corner inward, the cat-eye style harmonizes with the natural upward curve of upturned eyes, guiding the eye's visual flow and enhancing overall allure.

The other options do not align with the styling needs of upturned eyes. Shorter extensions would not take advantage of the natural shape, potentially resulting in a less flattering look. Using longer extensions solely at the outer corners may seem similar to the cat-eye style but does not create the same cohesive effect that blends nicely into the outer lift. Finally, using standard lengths across the lash line would overlook the unique characteristics of upturned eyes, which thrive on graduated lengths to emphasize their natural form.