<prompt> Fingqa isihloko: Iso lomuntu lenzelwe ukuba libone kahle imibala emini futhi lizwele kakhulu ebusuku. Kodwa kuze kube muva nje kwakubonakala sengathi amangqamuzana e-retina ahlanganiswe ngendlela engafanele, njengoba ukukhanya kudlula enqwabeni yezinzwa ngaphambi kokuba kufinyelele kumangqamuzana e-rod ne-cone athola ukukhanya. Ukucwaninga okusha okwethulwa emhlanganweni we-American Physical Society kuye kwembula umsebenzi ophawulekayo wokuthuthukisa umbono walokhu kwakheka okuyimfihlakalo. Abacwaningi base - Israel Institute of Technology bafunda ama - retina omuntu isithombe sangaphakathi kweso sikhonjisiwe. Babheka ukuthi kungani amangqamuzana asematheni ethu e-retina exhunywe ngendlela engafanele. Ukukhanya kudlula enxanxatheleni yezinzwa ngaphambi kokuba kufinyelele emhlane. Ucwaningo lubonisa ukuthi lesi sakhiwo sibonakala sithuthukisa umbono wethu. Cishe eminyakeni eyikhulu edlule, kwatholakala ukwakheka okuhle kwe-retina. I-retina iyingxenye yeso ebucayi ekukhanyeni, egqoke ingaphakathi lenhlamvu yeso. Ingxenye engemuva ye-retina iqukethe amaconsi okuzwa imibala ebomvu, eluhlaza nokuluhlaza okwesibhakabhaka. Phakathi kwalezi zinhlayiya kukhona izinduku, ezizwela ukukhanya kakhulu kunezinhlayiya, kodwa ezingaboni ngemibala. Ngaphambi kokuba ukukhanya kufinyelele kulezi zinhlayiya nezinduku, kumelwe kudlule kuyo yonke i-retina, enezingqimba zamangqamuzana ezinzwa nezinhlayiya zamangqamuzana. Lezi zinzwa zicubungula ukwaziswa okuvela ezithombeni bese zikudlulisela ebuchosheni, kodwa kuze kube muva nje bekungacaci ukuthi kungani la mangqamuzana ephambi kwama-cone nezinduku, hhayi ngemuva kwawo. Ngo-December, abacwaningi bathi iso lomuntu lingabona okungaphezu kwalokho ebesikucabanga. Ngaphambili kwakukholelwa ukuthi iso lomuntu alikwazi ukubona ukukhanya kwe-infrared, ngendlela efanayo esingakwazi ngayo ukubona ama-X-ray namaza omsakazo. Nokho, abacwaningi baye babonisa ukuthi ngaphansi kwezimo ezithile, i-retina iyakwazi ukuzwa ukukhanya kwe-infrared. Iqembu labacwaningi lamazwe ngamazwe elaliholwa ososayensi baseWashington University School of Medicine eSt. Louis lasebenzisa amangqamuzana avela kuma-retina amagundane nabantu. Ngokudubula ama-laser anamandla akhipha amaza okukhanya kwe-infrared, abacwaningi bathola ukuthi lapho ukukhanya kwe-laser kudlidliza ngokushesha, amangqamuzana athola ukukhanya kuyi-retina...  <response>: Abacwaningi base - Israel Institute of Technology bafunda ama - retina abantu. Babheka ukuthi kungani amangqamuzana asematheni ethu e-retina exhunywe ngendlela engafanele. Ukukhanya kudlula enxanxatheleni yezinzwa ngaphambi kokuba kufinyelele emhlane Ucwaningo lubonisa ukuthi lesi sakhiwo sibonakala sithuthukisa umbono wethu. 