Mecacanmed e like me ka mea hana photokeratosscopy a kūʻai aku i Kina, a hiki mai ka photokeratorscorycopy , a hiki iāʻoe ke hōʻoiaʻiʻo i ka maikaʻi o ka honua. Ināʻaʻoleʻoe eʻike i kāu kiʻi kiʻi pono'ī iāʻoe ma ka papa inoa huahana ma kā mākou papa inoa huahana, hiki iāʻoe ke hoʻokaʻaʻike mai iā mākou, hiki iā mākou ke heluhelu i nā lawelawe i hanaʻia.