Yintoni nendlela ukubona umbala iimfama - ngaphandle umbala umhlaba

blindness Umbala luphawu apho umntu ezalwa okanye ngenxa apho luvo okanye iliso izifo. Ukuba ukugula azalwa, nokuphilisa oko akwenzeki. Ubumfama ngenxa izifo ezingakhona iliso elinye okanye omabini ngexesha elinye. Kwimeko sifo ezifunyenwe unyango lo ngezifo zokuziswa umbono yabantu iba eqhelekileyo, yaye siphene enjalo inyamalala. Kuyinto ngenxa aba bantu, singakwazi ukuziqonda ngokucacileyo ukubona indlela umbala-iimfama, nendlela nzulu zonakaliswa nombono wabo ehlabathini. Ngenxa yobume yemfuza ubunzima awazalwa enaso umbala ubumfama, ngokuqhelekileyo abantu. Women colorblind ukuhlangabezana amaxesha amabini ngaphantsi. Phela, kubalulekile ukuphawula ukuba, kude kube ngoku, oogqirha babeqinisekile ukuba abafazi njengokugula asiqhenqethanga baqhawula twa. Noko ke, maxa wambi oosisi balahlekelwe ukukwazi ukwahlula imibala. It iza ubudala okanye ngenxa yokwenzakala kakhulu.

Ukuze ufumanise ukuba ubone indlela umbala-iimfama, simele sikhumbule ukuba uninzi lwabo musa ukubona imibala enye kuphela - blue, oluhlaza okanye obomvu, kodwa ezinye musa ukubona imibala nje ezimbini (blindness ngomphunga) okanye musa ukumbona zonke imibala (imibala).

Iingxaki kwi receptor lombala-ethe, ibekwe kwindawo engundoqo ye retina iliso, ke unobangela imibala sinesiphene. iiseli zemithambo-luvo Special (cone) receptors zidlala indima. Kukho iindidi ezintathu cone, nto leyo echaphazela indlela ibala-blind. Nayiphi na kwezi ntlobo leeprothini lombala-ethe iqulethe kombala elinoxanduva kwimbono umbala omnye eziziiprayimari. Xa abantu abane ngobumfama bekhubazekile, inkqubo offline ezi umbala-esivelisa sakhi (inye, zimbini, okanye bobathathu kwangoko).

Ukuchonga ukutyeshelwa imibala kusetyenziswa itafile uvavanyo polychromatic, apho amanani okanye imilo ezilula watyeda ngezangqa ezinemibala. Ngelo anomaly, babona imibala-iimfama, bangaboni amanani okanye imifanekiso. Umntu umbono eqhelekileyo ungabona umfanekiso ngoko nangoko.

unyango ngamachiza kwe awazalwa enaso umbala yimfama, kwaye ayikho indlela akakho kude kube ngoku, ukuba ukumelana nesi sifo. Ngo-2009, iqela lezazinzulu American sazama ukusombulula ingxaki imibala usebenzisa zobunjineli sofuzo. Xa ukungenisa zofuzo nkawu bakwazile ukusombulula ingxaki kwephulwa imibala kunye ukungqina ukuba ayifuni utshintsho luvo ukuze ukwamkela umbala entsha.

Kukho ezinye iindlela zotshintsho umbala encediswa lens ezizodwa. Kwixesha elidlulileyo, oko lwenzelwe iindondo lombala-eyimfama lens umbala Lilac ukwenzela ulungiso lombala ziimfama. Ngenxa iingongoma uyakwazi ukwahlula phakathi imibala eluhlaza kunye ebomvu, nto leyo iphucula umbono umbala abantu uhlobo oluxhaphakileyo lwe umbala ziimfama. Kwakhona uyakwazi kakhulu ngcono imibala yabangazijongisisi nzulu kunye lens ithinti contact ebomvu, ezo zisetyenziselwa ezinye iimvavanyo, kodwa ingasetyenziswa ukuguga oluqhubekayo.