originalen3 个可编辑参数 · 464 字符
An Ishihara color blindness test plate consisting of a large circular field filled with densely packed dots of varying sizes. The background dots within the circle are shades of . Embedded in the center is the number , formed by dots in contrasting shades of . The area outside the main circle is filled with darker, muted brownish-green dots, creating a seamless pointillism texture typical of medical optical illusions.
