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1.56 Nā aniani ʻōnika hina hina i hoʻopau ʻia
Aia i loko o ke aniani aniani o ka aniani hoʻololi kala kahi nui o ke kālā chloride, sensitizer a me ke keleawe. Ma lalo o ke kūlana o ke kukui pōkole pōkole, hiki ke hoʻokaʻawale ʻia i nā ʻātoma kālā a me nā ʻātoma chlorine. ʻAʻohe kala o nā ʻātoma chlorine a ua kala ʻia nā ʻātoma kālā. Hiki i ka nui o nā ʻātoma kālā ke hana i kahi kūlana colloidal, ʻo ia ka mea a mākou e ʻike ai he discoloration lens. ʻO ka ikaika o ka lā, ʻoi aku ka nui o ka hoʻokaʻawale ʻana o nā ʻātoma kālā, ʻoi aku ka ʻeleʻele o ka lens. ʻO ka nāwaliwali o ka lā, ʻoi aku ka liʻiliʻi o ka hoʻokaʻawale ʻana o nā ʻātoma kālā, ʻoi aku ka māmā o ka lens. ʻAʻohe lā pololei i loko o ka lumi, no laila lilo nā lens i mea ʻole ke kala.
