Lens igendanwa yateye imbere hamwe na koridor yagutse, binini bisobanutse neza kandi bigoreka bike
Uo ubugari bwibitekerezo ni igishushanyo gishya gitangaje lens zitera imbere, zibyiza kandi byoroshye kurwara gushya kugirango umenyere. Gufata ishushanya filozofiya, ibitekerezo byagutse bituma amadolari menshi yemerera amadosiye menshi yo kureba kugirango yinjizwe muri lens kandi ashyirwaho ahantu hanini & hafi, kimwe na koridor yagutse. Ni lens nziza kubarwayi bafite preskopia.
Bitandukanye na Lens gakondo, ibitekerezo bigari bifite ibyiza byinshi:
· Ubuso bwagutse cyane mugihe ureba kure, hagati no hafi
· Aticmatism ya AN D nta gace kagoreka
Bikwiranye nabantu bakwiriye abarwayi bongeyeho cyane kandi bambara lens igenda itera imbere kubwa mbere
Ntabwo bidasanzwe kubafite ubushobozi bwo kuzunguruka amaso kandi ntibanyuzwe no kugoreka lens gakondo.