Defocus nziza yashizemo ibice byinshi

Kugereranya na Leta ya Myopiya idakosowe kandi iyo ukoresheje lens zisanzwe: Ku bijyanye na Myopiya imwe idasanzwe, ishusho yikintu nyamukuru cyumurima uzaba uri hagati ya retina, mugihe ishusho ya Ibintu bya peripher bizagwa inyuma ya retina. Gukosora cyangwa lens isanzwe ihindura indege ishushanya kugirango ishingiye ku karere ka foto, ariko ibintu bya peripheri bimugakira no gusohora hyperopiki defocus ishobora gutesha agaciro kwaguka.

Igenzura ryiza rishobora kugerwaho binyuze muburyo bwinshi, ni ukuvuga, hagati igomba kuba ishobora kubona neza, kandi amashusho ya peripheri agomba kugwa imbere ya retina, kugirango ayobore retina gutera imbere cyane bishoboka aho kurangira inyuma. Dukoresha amafaranga ahamye kandi yiyongera kugirango akore impeta imeze neza. Mugihe cyo gushikama ahantu hamwe kwa lens, ibimenyetso bya myopia bya defocus byashizweho imbere ya retina, kugirango uhagarike ijisho kugirango ugabanye iterambere, kugirango tugere ku iterambere ryayopia mu rubyiruko.