Limited by local medical conditions, the girl was taken to Jinan to undergo surgery.

"She opened her eyes after I removed the gauze patches for her. I saw an expression akin to fear on her face. But when she saw her father by following his voice, she had such a joyful smile on her face," Wang says.

While providing cataract surgeries to Tibetan people, Wang noticed that most cities in the region didn't have any facilities for screening, diagnosing or curing strabismus, also known as "crossed eyes", and amblyopia, sometimes referred to as "lazy eye".

"As two common eye diseases for children, strabismus and amblyopia can lead to a loss of eyesight if they don't get early treatment," says Wang.

In 2020 and 2021, Wang led a medical team to provide cataract surgery in Tibet. Meanwhile, they conducted eye checkups for thousands of children in the region to screen for such conditions, as well as myopia.