Ua kapa ʻia ʻo Lens e like me nā kuhikuhi i loko o ka hale hana lens i kapa ʻia ʻo Rx lens.Ma ke kumumanaʻo, hiki ke pololei i ka 1 °.I kēia manawa, kauoha ʻia ka hapa nui o ka lens Rx e ka mana gradient degere o 25. ʻOiaʻiʻo, hoʻonohonoho ʻia nā ʻāpana e like me ka mamao haumāna, asphericity, astigmatism a me ke kūlana axial e loaʻa ai nā hopena maikaʻi loa (ʻaʻole wale ka mānoanoa like ʻole).Heluhelu makaaniani lens, ma muli o ka ʻoi aku o ka hoʻomanawanui ʻana i ka mamao o ka haumāna, ʻo ka mana gradient degere he 50, akā aia nō he 25.
Nā huaʻōlelo:ʻO ka lens Rx, ka lens prescription, ka lens maʻamau