 pilli yokka indriyaalaku sambamdhinchina yea paeraa prakaaram ,  human drushtitoe polchithe dhesheeya pillulu e kanthi stayini chudagalavu ?
 pillulu adbuthamaina ratri drhushtini kaligi untai mariyu human drushtiki avasaramaina kanthi stayini arava vantu Bara chudagalavu .: 43   idi pakshikanga pilli kallu tapetam lucidam ‌ nu kaligi undatam will osthundi ,  idi retiina gunda tirigi kantiloki vellae edaina kantini pratibimbistumdi ,  tadwara masaka kaantiki kanti sunnitatvam perugutundhi .  peddha vidyaarthulu masaka kaantiki anugunamga untaruu .  penpudu pilli slit vidyaarthulanu kaligi umtumdi ,  idi varna vullanghana lekunda prakaasavantamaina kantini kendreekarinchadaaniki anumatistundi .  takuva veluthuru oddha ,  pilli yokka vidyaarthulu dani kalla yokka bahirgata uparitalam chaaala varku vistarimchi umtumdi .  penpudu pilliki chaaala takuva varna drhushti Pali mariyu kevalam remdu takala cohn sells ,  neelan mariyu pasupu pacchaki sunnitatvam choose optimise cheyabadindhi ;  yerupu mariyu aakupacha Madhya thaedaanu gurtinche dani saamarthyam parimitam .  rodd kanaalu kakunda itara vyvasta nundi Madhya tarangadairghyalaku pratispandana mudava rakam cohn will kaavachhu .  idi nijamaina trichromatic drhushtini suchinchadaniki badhuluga takuva kanthi sthaayilaku anugunamga kanipistundhi .  pillulaku nictitating membrane kudaa umtumdi ,  vaati drushtiki aatamkam kalagakundaa reppaveyadaaniki veelu kalpisthundhi .
 penpudu pillulu human drushtiki avasaramaina kanthi sthaayiloo arava vanthunu chudagalavu .