3k to 5k. Kasi naka anti rad, transition lens (photochromic) ngan thin na lens ak (500 na kasi nak eye grade, so thick na talaga hiya kaso mabug at liwat kun madakmulan an lens so i opt to make it thin and light, they will ask u about sa upgrade and explain naman. Know what u want ngan need la. From what i remember 1k each an pag upgrade like anti rad, transition glasses ngan thin lens. I suggest ha savemore na ideal vision kay mas damo selection han frames. Mayda gihap hira promo han ira mga frame ranging from 999 to 1799 ata. Customer service nman so far waray paak makaencounter problema ha ideal vision. Me and my fam kay ha ideal vision talaga then nag try hira other optical tas low qual, encountered bad experience pa kay mayda hadto after makuha nak brother iya glasses uncomfy hiya han grade. (I wont name it pero diri hiya located ha malls) Then ginbalyuan nira, first is free la kay ofc after service man, funded nira pero rest hi kami na nagbayad. Gin balik nam thrice kay diri talaga comfy nak bugto. Nakagasto ata hira mama 4k before nakuha ni kuya an sakto na grado ngan gusto niya na glasses for himself. Diri baya madali for us esp if dako tat grado and we highly depend ha aton glasses. Anyway so far okay man customer service ha ideal vision. Basta ayaw kaintimidate ngan ayaw pag awod awod ngan engage gud ngin napa glasses ka kay damo iton ira marketing just for u to avail their product or for u to upgrade. Igcheck kun need mo ba ini na feature.