mmm.. no la~~ u just go there and say u want to buy contact lens.. of coz with ur eye glasses.. *sometimes u need to make an appt sin~ coz many ppl*.. then she will bring u a pair of contact lens for u to try.... he/she will ask u to wear it and walk around for 10 mins.. come back and check if your eyes are ok with it.. then u can choose to take it off or wear it.. Costco won't take it back~~ u can then tell her u will think abt it or... any other excuse. saying.. i will bring my mom here and buy it for me.. etc.. then it's yours..
but for me.. coz i buy it there.. everytime i change the brand...or different type..i always got a free pair
u need ur eye prescription la. coz they need to look at ur 度數 and give u the correct lens..
u also need a costco card ah~~
for eye exam.. u can go to 統一廣場 one~~ exam $75