ʻO nā lens holomua he mau lens "multifocal" ʻoiaʻiʻo e hāʻawi i ka helu palena ʻole o nā ikaika lens i hoʻokahi mau aniani.Hoʻoholo ka ʻike maikaʻi loa i ka lōʻihi o ka lens e ʻae i kēlā me kēia mamao e akaka:
ʻO luna o ka lens: kūpono no ka ʻike mamao, kaʻa kaʻa, hele wāwae.
Ma waena o ka lens: kūpono no ka ʻike kamepiula, nā mamao waena.
Ma lalo o ka lens: kūpono no ka heluhelu a hoʻopau ʻana i nā hana kokoke.
I ko mākou mau makahiki, lilo ia i mea paʻakikī ke nānā aku i nā mea kokoke i ko mākou mau maka.He maʻi maʻamau kēia i kapa ʻia he presbyopia.ʻIke mua ka hapa nui o ka poʻe inā pilikia lākou i ka heluhelu ʻana i ka paʻi maikaʻi, a i ʻole ke poʻo o ke poʻo ma hope o ka heluhelu ʻana, ma muli o ka ʻeha o ka maka.
Hoʻolālā ʻia nā holomua no ka poʻe e pono ai ka hoʻoponopono ʻana no ka presbyopia, akā ʻaʻole makemake lākou i kahi laina paʻa i waena o kā lākou mau lens.
Me nā lens holomua, ʻaʻole pono ʻoe e loaʻa ma mua o hoʻokahi mau aniani me ʻoe.ʻAʻole pono ʻoe e hoʻololi ma waena o kāu heluhelu a me nā aniani maʻamau.
ʻO ka hiʻohiʻona me nā holomua hiki ke ʻano kūlohelohe.Inā hoʻololi ʻoe mai ka nānā ʻana i kahi mea kokoke i kahi mea mamao, ʻaʻole e loaʻa iā ʻoe kahi "lele" e like me ʻoe me nā bifocals a i ʻole trifocals.
He 1-2 mau pule e hoʻololi ai i ka holomua.Pono ʻoe e hoʻomaʻamaʻa iā ʻoe iho e nānā i waho o ka ʻaoʻao haʻahaʻa o ka lens ke heluhelu ʻoe, e nānā pololei i mua no ka mamao, a e nānā i kahi ma waena o nā kiko ʻelua no ka mamao waena a i ʻole ka hana kamepiula.
I loko o ke aʻo ʻana, hiki iā ʻoe ke noʻonoʻo a me ka nausea mai ka nānā ʻana i ka ʻāpana hewa o ka lens.Aia paha kekahi distortion o kou ʻike peripheral.
E like me nā kukui polū i kēia mau lā ma nā wahi a pau, anti-blue Progressive Lenses he mea kūpono ia no nā hana o loko, e like me ka nānā ʻana i ke TV, ke pāʻani ʻana ma ke kamepiula, heluhelu puke a heluhelu nūpepa, a kūpono hoʻi no ka hele wāwae waho, kaʻa kaʻa, hele a me nā lole i kēlā me kēia lā a puni ka makahiki.