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1.56 ʻOki ʻulaʻula Photochromic Gray HMC Optical lens
ʻO Lens kahi mea akaka me hoʻokahi a ʻoi aʻe paha nā ʻaoʻao curved i hana ʻia me nā mea optical e like me ke aniani a i ʻole resin. Ma hope o ka poli ʻana, hoʻohui pinepine ʻia i loko o nā aniani me kahi kiʻi aniani e hoʻoponopono ai i ka ʻike o ka mea hoʻohana a loaʻa i kahi kahua o ka ʻike.
ʻO ka mānoanoa o ka lens e hilinaʻi nui ʻia i ka helu refractive a me ke degere o ka lens. He lahilahi nā lens myopic i waenakonu a mānoanoa a puni nā ʻaoʻao, ʻoiai ʻo nā lens hyperopic ka ʻaoʻao. ʻO ka mea maʻamau ke kiʻekiʻe o ke degere, ʻoi aku ka mānoanoa o ka lens; ʻO ke kiʻekiʻe o ka helu refractive, ʻoi aku ka lahilahi o ka lens
