Why have it done in China specifically?

China offers DSAEK at approximately $8,500—significantly lower than in the U.S. or Europe—while maintaining high standards through JCI-accredited hospitals and surgeons with extensive experience in high-volume transplant centers. Many facilities use imported donor tissue and advanced surgical technology. The shorter 3–5 day stay and streamlined medical tourism support make it a practical option for international patients seeking quality care at reduced cost.