ʻO ke kelepona Optical a me ke kaula he mea maʻamau i ko mākou ola i kēlā me kēia lā, hana lākou i kā mākou kamaʻilio. Hoʻohana nui nā poʻe he nui, akā ʻaʻole hiki ke ʻike i ka ʻokoʻa.
ʻO ka ʻoiaʻiʻo, he nui ka poʻe e hana like i kēia mau ʻano kelepona ʻelua, ʻoiai ke ʻano like ke ʻano o kekahi i kekahi, he ʻokoʻa loa ke ʻano.