I-Anatomy yeGala leGala leZithombe

Isikhokelo soBoniso kwi-Anatomy yeLiso lesintu

1 -

I-Eye Eye Anatomy

I-anatomy yeli liyinkimbinkimbi, equkethe iinxalenye ezibalulekileyo. Ubuchule bokubona buxhomekeke kule ndawo isebenza kunye. Sisebenzisa amehlo ethu phantse yonke imisebenzi esenzayo. Amehlo avumela ukuba sibone imilo, imibala, kunye nobukhulu bezinto ngokucwangcisa ukukhanya abonakalisa. Amehlo ethu akwazi ukukubona ekukhanyeni okanye ekukhanyeni, kodwa abakwazi ukubona izinto xa ukukhanya kungekho. Igalari elandelayo yomfanekiso isikhokelo kwiindawo ezininzi zeso luntu kunye nendlela ezisebenza ngayo.

UkuKhanya kufaka iliso nge-cornea, uluhlu olucacileyo olufihla phambili kweso. I-cornea isebenza ne-lens yelihlo ukugxila kwimifanekiso kwi-retina. Iipilisi ezingaphezulu kunye nezantsi zikhusela iliso kwingozi, kunye ne-eyelashes eyenza umqobo wokukhusela.

2 -

Ngaphandle kunye ne-Eye Eye Anatomy

I-cornea ivumela ukukhanya ukungena kwiso. Njengoko ukukhanya kudlula ejongeni, iris iguqula isimo ngokukhulisa nokuvumela ukukhanya ngakumbi. Okanye, ibeka kwaye ivumela ukukhanya okuncinci ngokutshintsha ubukhulu bomfundi. I-lens yatshintsha isimo ukuvumela ukujoliswa ngokuchanekileyo kokukhanya kwi-retina. I-Photoreceptors kwiso lidlulisela umqondiso weentliziyo nge-nertic optic kwi-brain. Ingqondo iqhuba le miphumo yentsholongwane.

3 -

I-Eyeal Eye Anatomy

I-cornea yi-glass watch watch efihliweyo phambi kweso. I-cornea isebenza ne-lens yelihlo ukugxila kwimifanekiso kwi-retina. I-retina ithatha umfanekiso kwaye uyithumela kwingqondo ukuba iphuhliswe. I-retina idla ngokubomvu ngenxa yobunini bayo begazi.

4 -

I-Anatomy yeLay Lens

I-lens inesibophezelo sokuqinisekisa ukuba imisebe yokukhanya ijolise ngokugqithiseleyo kwi-retina. I-lens yesiso ngokuqhelekileyo icacile. Ukuba i-lens iba yinto efakile okanye ichanekile, ibizwa ngokuba yi-cataract.