这种望远镜取代眼睛的瞳孔，提供可放大三倍的图象。
The telescope replaces the eye's nature lens and can provide an image that is magnified by almost three times.
图5老虎眼睛的形态差异：26号照片中，右眼睁大，瞳孔位于眼睛中央，黄色的巩膜环绕着一个白色中心点。
Fig. 5 Dissimilarity in form of the tiger's eyes: In photo no. 26, the right eye is largely opened and the pupil is in the center of the eye with a bright central point surrounded by a yellow sclera.
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