1.523 oghere oghere anya na-aga n'ihu iko

Isi akụrụngwa nke oghere enyo bụ enyo anya.The transmittance na n'ibu na chemical Njirimara nke iko oghere dịtụ mma, na mgbe niile refractive index na kwụsiri ike anụ ahụ na kemịkal Njirimara.

A na-emepụta anya anya na-aga n'ihu na ndabere nke lenses bifocal.Ọnụ ego eji eme ihe na Europe na United States dị oke elu, na oge ịmekọrịta na China ka malitere na ihe fọrọ nke nta ka ọ bụrụ afọ 10.Igwefoto na-aga n'ihu na-ezo aka na ntugharị nwayọọ nwayọọ n'etiti oghere abụọ a na-atụgharị uche site na iji teknụzụ na-egbuke egbuke na mgbanwe n'etiti elu na nke dị ala, nke a na-akpọ oghere na-aga n'ihu.Enwere ike ịsị na oghere na-aga n'ihu bụ oghere lens multi-focal.Mgbe onye na-ekiri ihe na-ekiri ihe ndị dị anya / dị nso, na mgbakwunye na enweghị iwepụ iko, mmegharị nke ọhụụ n'etiti elu na nke dị ala na-eji nwayọọ nwayọọ.Enweghị mmetụta nke ike ọgwụgwụ na anya ga-agbanwerịrị ogologo oge n'ogologo mgbe ị na-eji ụdị ihe abụọ na-elekwasị anya, ọ dịghịkwa ihe doro anya na-ekewa n'etiti oghere abụọ ahụ.Naanị ihe ọghọm bụ na enwere mpaghara nnyonye anya nke ogo dị iche iche n'akụkụ abụọ nke ihe nkiri na-aga n'ihu, nke ga-eme ka mpaghara ọhụụ nke gbara ya gburugburu mepụta mmetụta igwu mmiri.