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Papatahi-runga/Rangi-runga Bifocal Lens
Ka taea te kiia te arotahi bifocal he arotahi maha.E 2 nga waahanga tirohanga rereke i roto i te arotahi ka kitea.Ko te nui o te arotahi te tikanga kei a koe te whakahaunga e tika ana kia kite koe mo te tawhiti.Heoi ano, koinei pea to whakahaunga mo te whakamahi rorohiko, te awhe takawaenga ranei, na te mea ka titiro tika koe ina titiro koe i tenei waahanga o te arotahi.I te mea ka titiro whakararo koe ki te panui,...