Ifihlo isakhiwo iliso

Ngamanye amaxesha iliso yabantu kuthelekiswa nenkqubo kokugcina it svetovosprinimayuschuyu matrix, okanye retina, iris, oko kukuthi, lo umfundi, lens, okt ilens, nomzimba eziphilayo - le sclera. Cinga isakhiwo iliso iimfihlelo ezininzi, ukuqonda isixhobo ngobuqili bakhe.

Iliso yabantu phambi ezikhuselweyo eminyaka - ezisezantsi neziphezulu. Ngaphandle ijwabu yabantu egqunywe yesikhumba, ngaphakathi - lo conjunctiva, lo ndizayo obhityileyo. Neenkophe kunye amashiya zikhuselekile ukusuka eluthulini kunye inkunkuma emehlweni. Amadlala sebaceous, ibekwe phantsi iinkophe, ukukhuthaza ukwahlukana engamanzi, leyo rhoqo moistens yeso. Kwakhona phantsi iinkophe ibekwe izihlunu kunye intlala, ngenxa bakwazi blink thina, ngokuba izihlunu tona ngonaphakade. Ezimbombeni Iliso zilungiswe amanqaku iinyembezi apho eyabelwe ulwelo eyodwa ebizwa ngokuba iinyembezi. Enkosi iinyembezi, asiyi nje ngokutsha ubunzima iimvakalelo ababeyiqwebile nyulu amehlo ukusuka eluthulini, uhlambe ngaphakathi amehlo kwaye ususa ubuthi emzimbeni.

iliso komzimba ihlukile nanto. Xa yeso ngalinye izihlunu ezintandathu, iyileyo yenza umsebenzi wayo. Izihlunu ukuvumela ukuba uphendule ngokukhululekileyo amehlo akho ingqalelo umbono othile. Isakhiwo Indlela iso olubangelwa bubukho kwi iqokobhe olungaphandle inwebu kunye sclera. Kwenye iliso ebizwa neprothini sclera kuba sele umbala omhlophe. Singene 5/6 we iliso kwaye zikhusela, kodwa ixhasa imilo iso. Inwebu sikhanya kwaye ngokumila khaxa. Eyona umsebenzi inwebu na refraction lokukhanya.

Isakhiwo iliso womatshini iphawulwa umngxuma ngeenxa - umfundi, nto leyo ibekwe esizikithini iris. Hi ndlela leyi, kombala iris limisa umbala amehlo ethu. Kuxhomekeka kombala, umbala wamehlo isenokuba almondi, okanye oluhlaza green. Candani phakathi umtha umfundi zifike retina. Ukuba ukukhanya Kukhazimlayo, umfundi uncipha, ukuba igumbi umnyama - iyenyuka. ubukhulu umfundi ibonisa indlela umntu amehlo ukuba baqwalasele izinto. Kwaye ebumnyameni ukwenza inzima kakhulu. Ubume iliso ebantwini ngenxa yobukho omnye element - lens. Ilens ise umfundi kwaye lisebenza lens lenticular. Le inwebu kunye lens ulwelo feed evela iikhamera iliso.

Inxalenye ebalulekileyo iliso kwiretina. Kuyinto ipleyiti eliquka kwiiseli ezininzi. Ubume retina ixhomekeke kwindlela esiphendula kakuhle umntu uyakwazi ukubona izinto. Ngaphaya retina kwento omnyama - bala lintsundu, ethintela ukukhanya engenayo kwaye akavumeli ukuba ukubonakalisa. Kwakhona, isixa-bala lintsundu limisa umbala yamehlo. Melanin ngaphezulu - i mnyama amehlo abantu. Kuyenzeka ukuba abantu babe iliso eyahlukileyo umbala. Oku kungqinwa ukophulwa kombala.

Ubume isixhobo iso - buyinto engaqhelekanga kwaye entsonkothileyo kakhulu, kukho indlela, izazinzulu abavela kumazwe ahlukeneyo ukusebenza ngaloo kangangeenkulungwane ezininzi. Ukuze ukwahlula phakathi umntu nibona ezahlukeneyo izinto, ebandakanya ezininzi izihlunu, imithambo-luvo namalungu. Iliso yabantu - yinto yonke indlela, isixhobo yonke ngoomatshini. Kuyamangalisa ngayo ubuhlakani ngokuchanileyo ukuba uhlobo ekujongwe. Ngenxa mbono, sifunda ngalo ihlabathi, siya ukuphumeza imisebenzi yayo ebalulekileyo kunye nonxibelelwano. Kunzima ukucinga ukuba abantu kunye ngaphandle emehlweni. Ngoko kuyimfuneko ukuba ukukhathalela nokukhusela umbono wakho. Musa ukuhlala ixesha elide phambi computer, ukufunda okuninzi kwaye ayaphela amehlo akho. Iliso kwabantu, kwakunye umzimba xa lilonke, ifuna ukuphumla. Ngoko ke musa ukulibala ukuba ndilale ngokwaneleyo, ukwenza imithambo kuba amehlo, ukuze bahlale besempilweni kwaye abukhali.