Ko te mārama kikorangi he wāhanga o te whānuitanga e kitea ana ka taea te toro hohonu atu ki roto i te kanohi, ā, ko tōna pānga pupū ka arahi pea ki te kino o te retina, ā, e pā ana hoki ki te whanaketanga o te pirau kanohi e pā ana ki te koroheketanga.

Ko te mārama kikorangi iti he aratau whakaatu i runga i te mata e whakarerekē ana i te taupū kaha o te mārama kikorangi i roto i ngā aratau rerekē. Ahakoa ka whakakāhia tēnei mahi, ka pā ki te whakaaturanga tae o te pikitia whānui, engari he mea tika kia tiakina ngā kanohi.

Ko te tikanga o te kore e kanapa, kāore te mata LCD e kanapa i raro i ngā āhuatanga kanapa o te mata. Kua noho mārama, kua maeneene hoki te mata whakaatu, ka taea te whakamama i te taumahatanga me te ngenge o ngā kanohi tangata ki te taumata teitei, ā, ka tiakina pai hoki te hauora o ngā kanohi.