In 2022,during the Fengxian Temple protection project at the Longmen Grottoes,a significant discovery was made during disease investigation.It was found,for the first time,that the Pratyekabuddha on the right side of the Rushena Buddha had a glazed eye,with residual traces of painted pigment on the statue's surface.Non-destructive testing using portable equipment confirmed that the glazed eyeballs contained a high lead content,indicating the presence of typical artificial glaze.The head of the statue was adorned with painted pigment,including lead white and iron red.This newfound revelation not only represents an important outcome of the overall disease investigation at Fengxian Temple but also provides valuable data to support future archaeological and cultural heritage preservation efforts at the Longmen Grottoes.Moreover,it holds significant value in analyzing and exploring the stone carving techniques employed during the Tang Dynasty.