Ka hopena makaaniani

Hiki i nā kukuna Ultraviolet ke hōʻino i ka cornea a me ka retina, a hiki i nā aniani kiʻekiʻe ke hoʻopau loa i ka ʻike ultraviolet.
I ka loaʻa ʻana o ka mālamalama i ka maka, ʻokoʻa maoli ka iris.Ke emi ka iris i kona palena, a laila pono nā kānaka e squint.Inā ʻoi aku ka nui o ka mālamalama, e like me ka ʻike ʻia ʻana o ka lā mai ka hau, e pōʻino ana ka retina.Hiki i nā makaaniani kiʻekiʻe ke kānana a hiki i ka 97% o ka mālamalama e komo i kou mau maka e pale i ka pōʻino.
ʻO kekahi mau ʻili, e like me ka wai, e hōʻike i ka nui o ka mālamalama, a ʻo ka hopena o nā wahi ʻālohilohi hiki ke hoʻoneʻe i ka ʻike a hūnā paha i nā mea.Hiki i nā makaaniani kiʻekiʻe ke hoʻopau loa i kēia ʻano ʻālohilohi me ka hoʻohana ʻana i ka ʻenehana polarizing, a mākou e uhi ai ma hope.
ʻO kekahi mau alapine o ka ʻike popopo māmā, ʻoiai nā alapine ʻē aʻe e hoʻonui i ka ʻokoʻa.E koho i ka waihoʻoluʻu kūpono no kāu mau makaaniani e hana maikaʻi ai i kahi kaiapuni i hāʻawi ʻia.

Inā ʻaʻole hāʻawi nā maka aniani i ka pale UV, e hōʻike lākou iā ʻoe i nā kukuna UV hou aʻe.Hoʻomaʻemaʻe nā aniani makamae i kekahi o nā kukui, e wehe ai i kou mau iris e loaʻa ai ka mālamalama.E ʻae kēia i nā kukuna ultraviolet hou aʻe e komo, e hoʻonui ai i ka pōʻino i hana ʻia e nā kukuna ultraviolet i ka retina.
No laila, aia nō nā ʻokoʻa ma waena o nā ʻano aniani like ʻole.ʻO ke koho ʻana i nā aniani aniani kiʻekiʻe kūpono no kāu wahi hoʻohana kikoʻī e hāʻawi iā ʻoe i ka pale nui loa.
Wahi a nā kūlana honua, hoʻokaʻawale ʻia nā aniani i nā huahana pale maka pilikino.ʻO ka hana nui o nā makaaniani lā, ʻo ia ke ālai i ka ʻālohilohi o ka lā.Eia nō naʻe, hoʻokaʻawale nā ​​​​makaaniani makaaniani i nā "aniani makaaniani" a me nā "makaaniani kumu nui."ʻO nā koi maikaʻi no "nā aniani hiʻohiʻona" i nā kūlana he haʻahaʻa.No ka mea,ʻo ka manaʻo nui o "nā aniani hiʻohiʻona" heʻano, e hoʻolohe ka mea hoʻohana i ka hoʻonani ma mua o ka hana pale.ʻO nā koi kūpono o ka maʻamau no "nā makaaniani kumu nui he koʻikoʻi, me nā koi no ka pale UV, diopter a me ka mana prism."

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Ka manawa hoʻouna: Jan-23-2024