The story was told by Leung Chun-ying, vice-chairman of the National Committee of the Chinese People's Political Consultative Conference and former chief executive of Hong Kong, when attending a commemorative ceremony on June 6 in Taiyuan, the capital of North China's Shanxi province, to honor the medical team behind the cataract blindness elimination project in Djibouti.

Leung, also chairman of the Hong Kong-based GX Foundation, said the organization committed to providing medical and public health humanitarian aid to countries involved in the Belt and Road Initiative.

The African twins' grandfather was among the first patients to benefit from a cataract blindness elimination project launched in Djibouti, a joint effort by the Health Commission of Shanxi province and the GX Foundation.