Lens Iterambere ryiterambere rirakunzwe kandi mubantu bakeneye icyerekezo cya kure ndetse no gukosora hafi, nk'abakorana na mudasobwa cyangwa bakeneye gusoma igihe kinini. Hamwe na lens igenda itera imbere, uwambaye akeneye gusa guhindura amaso yabo muburyo busanzwe, atagoramye umutwe cyangwa ngo ahindure igihagararo, kugirango abone icyerekezo cyiza. Ibi bituma biba byiza kubikoresha burimunsi, kuko uwambaye arashobora guhinduka byoroshye kuva mubintu bya kure akajya kureba hafi yibintu atiriwe ahindura ibirahuri cyangwa lens zitandukanye.
● Ugereranije ninzira zisanzwe zitera imbere (9 + 4mm / 12 + 4mm / 14 + 2mm / 12mm / 17mm), ibyiza byubushakashatsi bwacu bushya butera imbere ni:
1. Igishushanyo mbonera cyacu cyoroshye gishobora gutuma astigmatism ihinduka neza muri zone itabona kugirango igabanye kwambara;
2. Dutangiza igishushanyo mbonera mugace gakoreshwa cyane kugirango twishyure kandi tunoze imbaraga za periferique yibanze, bigatuma icyerekezo mukarere gakoreshwa cyane gisobanutse.