He 30% te nui ake o te tirohanga o te arotahi ahu whakamua i roto i te mata hanga-kore.
Ko te mata o roto o te mata ahu whakamua he nui ake i te hoahoa ahu whakamua.
Mo nga kaimau rereke, ka mahia te tatauranga arotautanga o te rama kia rite ki te maaramatanga o te whakahaunga, a ko te tino mau o te arotahi ahu whakamua ka whakatauhia i mua, katahi ka whakamahia te whakamaharatanga rokiroki o te papatono mo te tukatuka tapahi tino tika hei whakaiti i te tirohanga. raruraru korikori mara.He iti, he pai ake te kounga tirohanga.Ko tetahi waahanga o te arotahi ahu whakamua kua tino pai te hanga he maamaa, he maamaa te whanui whanui o te tirohanga ki tawhiti, waenga me te tata, he maamaa ake te urutau, ka mau mai i te wheako tirohanga tino kore ki te kaimau!
● He tirohanga whanui ake: ka taea e te kaimau te kite i te tirohanga marama tonu mai i te pito tawhiti ki te waahi tata na roto i te arotahi multifocal ahu whakamua, ka taea te kite i nga tawhiti tawhiti, waenga me te tawhiti poto.
● He marama ake te tirohanga hihiko : ka neke te marama mai i tetahi waahi ki tetahi atu, he mea maori te huringa o te kanohi, a ka kore e mangere me te whakararu i te tirohanga na te peke whakaahua.
● He pai ake te whakamarie: te tirohanga maori, i runga i te taha o nga whatu ahuwhenua, tere ake te urutau me te whakapoto i te waa urutau.
● He ahua ahua ake te ahua: he ataahua ake te ahua i te bifocals, kaore he raina wehewehe kiriata iti, kaore he rohe matapo annular
Titiro tata ka kite i tawhiti, kotahi te whakaata mo nga whakamahinga maha, te mahi whakatikatika tirohanga, he pai ake te kakahu
Ko te neke i te hoahoa ahu whakamua ki te mata o roto ka tino whakanuia te tirohanga o ia rohe o te arotahi.Ko tetahi atu take e pa ana ki te waahi tirohanga ka ahu mai i te hoahoa aspheric astigmatic ranei o te mata o muri.Ko te hoahoa aspheric e hangai ana te radius o te cur vature o te tihi o te arotahi kia tata atu te arotahi ki te poi kanohi, he mea nui ano tenei ki te whakawhānui ake i te waahi tirohanga.
Whakaahuatanga arotahi
Whakapaia te kaupapa hoahoa hangarite ngohengohe kia tutuki ai te toenga o tawhiti, waenga me te tata
A ko te waahi astigmatism i nga taha e rua kua pai ake te whakapai ake hei whakanui ake i te tirohanga tirohanga ma te 35%
Ka pai hoki te ahua o te kaimau ki te whakawhiti i ia rohe marama me te ngawari ki te urutau.
● He tirohanga whanui ake: ka taea e te kaimau te kite i te tirohanga marama tonu mai i te pito tawhiti ki te waahi tata na roto i te arotahi multifocal ahu whakamua, ka taea te kite i nga tawhiti tawhiti, waenga me te tawhiti poto.
● He marama ake te tirohanga hihiko : ka neke te marama mai i tetahi waahi ki tetahi atu, he mea maori te huringa o te kanohi, a ka kore e mangere me te whakararu i te tirohanga na te peke whakaahua.
● He pai ake te whakamarie: te tirohanga maori, i runga i te taha o nga whatu ahuwhenua, tere ake te urutau me te whakapoto i te waa urutau.