A total of 2,236,107 eyes of 1,591,176 patients underwent cataractsurgery from 2011 to 2015. The total number of operated eyes per year increased, from 427,729 to 492,700 (+15%), and the number of patients increased from 306,710 to 346,056 (+12%) from 2011 to 2015. The cost of cataractsurgery reimbursed by the National Health Insurance Service (NHIS) increased from 408,307,530,900 won ($360 million) to 449,334,367,080 won ($399 million) (+9%). The futureprevalence of cataractsurgery was predicted to reach 562,003 in 2030 from 346,056 in 2015. The cost of cataractsurgery is expected to increase from 449 billion won ($399 million) in 2015 to 641 billion won ($570 million) in 2030.