Umkhwa ombi obangela ukuba ungaboni !!!!

Kubonakala ngathi ukutshaya akuyi kuchaphazela kuphela imvakalelo yakho yokuvumba kunye nokungcamla, kodwa kunye nokubona kwakho, njengoko uphando olutsha luye lwabonisa ukuba ukuvezwa kwento yeekhemikhali kumsi wecuba kunokukwenza kube nzima ukubona kwiimeko zokukhanya okuphantsi ezifana nokuhlwempuzeka. ukukhanya, inkungu okanye ukukhanya okuqaqambileyo.

Abaphandi babhala kwijenali ye-"Gamma" ye-ophthalmology ukuba ubukho bamanqanaba aphezulu e-cadmium egazini bunxulunyaniswa nokuncipha komqondo wokuchasana komfanekiso.

"Le nkalo yombono ibaluleke ngokwenene kuba ichaphazela amandla akho okubona isiphelo somphetho okanye ufake isitshixo kwisitshixo ekukhanyeni okuphantsi," watsho umbhali okhokelayo uAdam Paulson weYunivesithi yaseWisconsin School of Medicine eMadison.

Wongezelela, "Yinto ekungekho ndlela yokuyilungisa ngoku, ngokungafaniyo nombono obonakalayo, onokuphathwa ngokulula ngeeglasi okanye iilensi zoqhagamshelwano."

Wongeze ngelithi ukutshaya kunokunyusa amanqanaba e-cadmium, njengoko kunjalo nokutya imifuno enamagqabi aluhlaza kunye noonokrwece. Wachaza ukuba kunokwenzeka ukuba udle le mifuno ngelixa uphepha i-cadmium ukuba imifuno ayizange ibonakale kwi-pesticides.

Iintsimbi ezimbini ezinzima, ilothe kunye ne-cadmium, ziqokelelana kwi-retina, umaleko we-neurons ova ukukhanya kwaye uthumela imiqondiso kwingqondo, utshilo uPaulson.

Abaphandi bavavanya amehlo amavolontiya ukulinganisa uvakalelo olwahlukileyo. Kodwa endaweni yokwenza oonobumba bancinci, uvavanyo olubandakanyekayo lunciphisa ngokuthe ngcembe umahluko phakathi kombala weleta kunye nemvelaphi.

Ekuqaleni kophononongo, akukho namnye kumavolontiya ka-1983 owayenaso nasiphi na isiphene kubuntununtunu obahlukileyo. Emva kweminyaka eyi-10, abaphandi bafumanisa ukuba phantse ikota yamavolontiya baye bafumana ukuncitshiswa kobuntununtunu bamehlo, kwaye oku kuncitshiswa kwakunxulumene namanqanaba e-cadmium, kodwa kungekhona ukukhokela.

Kodwa uPaulson uthe oko akuthethi ukuba ukhokelo aluchaphazeli ubuntununtunu bokuthelekisa. “Oku kusenokuba kungenxa yokuba kwisifundo sethu bekungekho sesichengeni saneleyo sokukhokela (kumavolontiya) kwaye esinye isifundo sinokufumana umanyano phakathi kwabo,” wongeze watsho.