Txhais li cas los ntawm emmetrope?

Cov txheej txheem:

Txhais li cas los ntawm emmetrope?
Txhais li cas los ntawm emmetrope?
Anonim

Emmetropia yog lub xeev refractive ntawm lub qhov muag nyob rau hauv uas tib lub rays ntawm lub teeb nkag mus rau hauv lub qhov muag yog tsom rau ntawm retina, tsim cov duab uas pom tau tias yog nkig thiab ua kom pom tseeb. Myopia, hyperopia, thiab astigmatism yog qhov txawv txav ntawm qhov xav tau no (Daim duab 1-4).

txhais li cas los ntawm myopia?

Myopia, lossis pom qhov muag luv, tshwm sim thaum lub qhov muag ntev dhau lawm ces nws cuam tshuam li cas lub cornea thiab lens tsom. Qhov no txhais tau hais tias cov khoom nyob rau hauv qhov kev ncua deb pom qhov muag plooj vim lub teeb rays yog tsom rau pem hauv ntej ntawm lub retina es tsis ncaj nraim rau ntawm nws qhov chaw.

Astigmatism txhais li cas?

Astigmatism (uh-STIG-muh-tiz-um) yog ib qho thiab feem ntau kho tsis zoo hauv qhov curvature ntawm koj lub qhov muag uas ua rau qhov muag tsis pom kev thiab ze qhov muag. Astigmatism tshwm sim thaum ob sab pem hauv ntej ntawm koj lub qhov muag (cornea) lossis lub lens, hauv koj lub qhov muag, muaj qhov nkhaus tsis sib haum.

Ametropia ntawm qhov muag yog dab tsi?

Ametropia yog a lub xeev qhov kev ua yuam kev refractive tshwm sim, lossis thaum cov ntsiab lus nyob deb tsis tau tsom mus rau retina. Myopia lossis ze-sightedness (sightedness luv) yog ib hom ametropia uas qhov muag tau ntev dhau los lossis muaj lub zog siab dhau.

Yuav ua li cas thaum Emmetropization?

Emmetropization yog txheej txheem ntawm kev ua tiav emmetropia thiab koom nrog txo qis hauv qhov tsis txaus ntseeg uas tshwm sim thaum yug.

Pom zoo:

Nthuav cov khoom
Tus kab mob herpes puas raug mob?
Nyeem ntxiv

Tus kab mob herpes puas raug mob?

Ntshav herpes tuaj yeem ua rau mob, khaus thiab mob hauv koj qhov chaw mos. Tab sis tej zaum koj yuav tsis muaj cov cim qhia lossis cov tsos mob ntawm qhov chaw mos herpes. Yog tias kis tau, koj tuaj yeem kis tau txawm tias koj tsis pom qhov mob.

Yuav ua li cas sau cov kev cai ywj pheej?
Nyeem ntxiv

Yuav ua li cas sau cov kev cai ywj pheej?

verb (siv nrog lossis tsis muaj khoom), de·moc·ra·tized, democ·tiz·ing. ua los yog ua kev ywj pheej. Tsis tas li ntawd tshwj xeeb tshaj yog British, democra·tise. Dab tsi yog kev ywj pheej? Democratization, lossis kev ywj pheej, yog kev hloov pauv mus rau kev tswj hwm kev ywj pheej ntau dua, suav nrog kev hloov pauv tseem ceeb ntawm kev hloov pauv mus rau kev coj noj coj ua.

Rotted manure txhais li cas?
Nyeem ntxiv

Rotted manure txhais li cas?

Zoo rotted manure zoo li soil/compost. Nws yuav tsis muaj kab mob ntawm cov quav cab los yog shavings thiab nws yuav crumbly thiab tsis hnov tsw ntawm nees poo ntxiv lawm. Yog tias koj khaws tau dab tsi los tseem steaming, tej zaum nws tseem yuav rotting thiab tej zaum yuav nplua nuj heev rau cov nroj tsuag.