CR39 1.49 idapfundikiye hejuru ya bifocal ophthalmic lens

Lens ya Bifocal Niki & Bakora gute?

Hano haribintu byinshi bitandukanye byinzira ziboneka uyumunsi, inyinshi murizo zuzuza intego imwe cyangwa intego nyinshi.Muri uku kwezi kwanditse kuri blog tuzaganira ku byerekezo bibiri, uko bikora, ninyungu zabyo ni izihe zidafite ubumuga bwo kutabona.

Indorerwamo ya Bifocal eyeglass irimo lens ebyiri zifite imbaraga zo kugufasha kubona ibintu intera zose nyuma yo gutakaza ubushobozi bwo guhindura bisanzwe amaso yawe kubera imyaka, bizwi kandi nka presbyopia.Bitewe niyi mikorere yihariye, lensike ya bifocal ikunze kwandikirwa abantu barengeje imyaka 40 kugirango bafashe kwishyura ibyangiritse bisanzwe byerekanwa bitewe nubusaza.

Utitaye kumpamvu ukeneye urupapuro rwo gukosora hafi-iyerekwa, bifocals byose bikora muburyo bumwe.Igice gito mugice cyo hepfo ya lens kirimo imbaraga zisabwa kugirango ukosore icyerekezo cyawe hafi.Ahasigaye lens mubisanzwe ni iyerekwa ryawe.Igice cya lens cyagenewe gukosorwa hafi-cyerekezo gishobora kuba kimwe muburyo butandukanye:

• Ukwezi-ukwezi - nanone bita igorofa-hejuru, igororotse-hejuru cyangwa D igice
• Igice kimwe
• Agace kagufi k'urukiramende, ruzwi nkigice cya lente
• Igice cyo hepfo cyuzuye cya lens ya bifocal bita Franklin, Executif cyangwa E.