E ʻike ʻia ke ʻano o ka presbyopia ma hope o ka makahiki 40, akā i nā makahiki i hala iho nei, ma muli o ka maikaʻi ʻole o ka maka o ka poʻe o kēia wā, ʻoi aku ka nui o ka poʻe i presbyopia i hōʻike mua ʻia.No laila, ke koi nobifocalsaholomuaua mahuahua no hoi.ʻO wai o kēia mau aniani ʻelua i makemake nui ʻia no ka poʻe me ka myopia a me ka presbyopia?
1. Bifocals
He ʻelua degere ka bifocal.ʻO ka mea maʻamau, hoʻohana ʻia ka ʻaoʻao o luna e ʻike i nā wahi mamao, e like me ke kaʻa a me ka hele wāwae;ʻO ka ʻaoʻao haʻahaʻa e ʻike i kahi kokoke, e like me ka heluhelu puke, pāʻani me ke kelepona paʻa, a me nā mea ʻē aʻe. I ka puka mua ʻana o nā lens bifocal, ua manaʻo ʻia ʻo ia ka ʻeuanelio no ka poʻe me ka ʻike pōkole a me ka presbyopia, e hoʻopau ana i ka pilikia o ka wehe pinepine ʻana a me ke komo ʻana, akā i ka hoʻohana ʻana o ka poʻe, ʻike lākou he nui nā hemahema bifocal.
ʻO ka mea mua, ʻo ka pōʻino nui loa o kēia ʻano lens he ʻelua wale nō degere, a ʻaʻohe hoʻololi maʻalahi ma waena o ka nānā ʻana i kahi mamao a kokoke, no laila ua maʻalahi ka hana ʻana i ka prism phenomenon, i kapa pinepine ʻia ʻo "jump image".A he maʻalahi ke hāʻule i ka wā e ʻaʻahu ai, ʻoi aku ka palekana no nā mea hoʻohana, ʻoi aku ka poʻe kahiko.
ʻO ka lua, ʻo ka hemahema ʻē aʻe o nā lens bifocal, inā ʻoe e nānā pono i nā lens bifocal, hiki iā ʻoe ke ʻike i kahi laina hoʻokaʻawale ma waena o nā degere ʻelua ma ka lens.No laila ma ke ʻano o ka aesthetics, ʻaʻole paha he nani loa.Ma ke ʻano o ka pilikino, ma muli o nā hiʻohiʻona ʻike o nā lens bifocal, he mea ʻino paha ia no ka poʻe ʻōpio.
Hoʻopau nā lens bifocal i ka pilikia o ka wehe pinepine ʻana a me ke komo ʻana o ka myopia a me ka presbyopia.Hiki iā lākou ke ʻike maopopo ma kahi mamao a kokoke, a ʻoi aku ka liʻiliʻi o ke kumukūʻai;akā, hiki ke pohihihi ka wahi mamao waena, a ʻaʻole maikaʻi ka palekana a me ka nani.
2. Holomua
Loaʻa i nā lens holomua he mau kiko kikoʻī, no laila e like me nā lens bifocal, kūpono lākou i ka poʻe me ka ʻike pōkole a me ka presbyopia.Hoʻohana ʻia ka ʻaoʻao o luna e ʻike i ka mamao, a ʻo ka lalo e ʻike kokoke.Akā ʻaʻole like me nā lens bifocal, aia kahi ʻāpana hoʻololi ("progressive zone") i waenakonu o ka lens holomua, kahi e hiki ai iā mākou ke ʻike i ka mamao mai kahi mamao a kokoke.Ma waho aʻe o ka luna, waena, a me lalo, aia kekahi wahi makapō ma nā ʻaoʻao ʻelua o ka lens.ʻAʻole hiki i kēia wahi ke ʻike i nā mea, akā liʻiliʻi ia, no laila ʻaʻole pili i ka hoʻohana.
Ma ke ʻano o ka helehelena, ʻaʻole hiki ke ʻike ʻia nā lens holomua mai nā aniani hiʻohiʻona hoʻokahi, a ʻaʻole e ʻike maʻalahi ʻia ka laina hoʻokaʻawale, no ka mea, ʻo ka mea hoʻohana wale i nā lens holomua hiki ke ʻike i ka ʻokoʻa o ka mana ma nā wahi like ʻole.ʻOi aku ka maikaʻi no ka poʻe makemake e pale i kā lākou pilikino.Ma ke ʻano o ka hana, hiki ke hoʻokō i nā pono o ka ʻike mamao, waena a kokoke.ʻOi aku ka maikaʻi o ka nānā ʻana i ka mamao waena, aia kahi wahi hoʻololi, a ʻoi aku ka maʻalahi o ka ʻike, no laila ma ke ʻano o ka hopena hoʻohana, ʻoi aku ka maikaʻi o nā holomua ma mua o nā bifocals.
Ka manawa hoʻouna: Iune-30-2023