Vim li cas qhov muag thiaj li zoo dua thaum muaj hnub nyoog?

Cov txheej txheem:

Vim li cas qhov muag thiaj li zoo dua thaum muaj hnub nyoog?
Vim li cas qhov muag thiaj li zoo dua thaum muaj hnub nyoog?
Anonim

Lub qhov muag hloov li cas nrog hnub nyoog. Lub qhov muag lub qhov muag hloov pauv lub zog thaum nws poob nws cov duab thiab ua rau muaj hnub nyoog. Dr. Mohney hais tias "Cov leeg [qhov muag] tau rub tawm tsam lub lens tawv, uas tsis tuaj yeem hloov pauv zoo li nws tau siv los," hais tias Dr. Mohney.

Puas qhov muag pom kev zoo dua lub sijhawm?

Raws li American Academy of Ophthalmology, koj ob lub qhov muag tau tsim los ntawm lub sijhawm koj muaj 20 xyoo, thiab koj qhov kev pom ze ze yuav tsis hloov pauv ntau txog thaum koj muaj 40. Lub sijhawm koj yuav siv nyiaj tsawg dua los ntawm kev LASIK dua li txuas ntxiv mus yuav khoom. thiab tuav cov lo ntsiab muag kom raug.

Koj lub qhov muag puas zoo dua qub?

Yog koj tsis saib xyuas koj ob lub qhov muag kom zoo tam sim no, nws tsis zoo li lawv yuav zoo dua qub. Tab sis muaj qee yam uas koj tuaj yeem pib cog lus ua tam sim no los pab txhim kho koj qhov muag thaum koj muaj hnub nyoog rau xyoo kub.

Koj qhov muag pom kev zoo li cas?

Peb can tsis kho peb pom tsis muaj kev pabcuam, thiab tsis muaj kev kho sai thiab yooj yim rau eyesight teeb meem. Tab sis nrog cov cuab yeej xws li kev noj zaub mov zoo thiab noj zaub mov zoo, koj tuaj yeem tseem pab koj qhov muag ib txwm muaj thiab koj tus kheej.

Kev pom kev hloov pauv li cas nrog hnub nyoog?

Kev laus kuj ua rau qhov tsis pom kev ib txwm pom, nrog qhov loj ntawm peb qhov muag teb txo qis li ntawm ib mus rau peb degrees hauv kaum xyoo ntawm lub neej. Los ntawm lub sijhawmkoj mus txog koj 70s thiab 80s, tej zaum koj yuav muaj ib tug peripheral pom qhov poob ntawm 20 mus rau 30 degrees.

Pom zoo:

Nthuav cov khoom
Koj puas tuaj yeem mus ntsib dagestan?
Nyeem ntxiv

Koj puas tuaj yeem mus ntsib dagestan?

Dagestan, officially lub koom pheej ntawm Dagestan yog ib lub koom pheej ntawm Russia nyob rau hauv lub Caspian Hiav txwv, nyob rau hauv lub North Caucasus ntawm Eastern Europe. Nws nyob rau sab qaum teb ntawm Greater Caucasus, thiab yog ib feem ntawm North Caucasian Federal District.

Xab npum suds siv rau dab tsi?
Nyeem ntxiv

Xab npum suds siv rau dab tsi?

A xab npum suds enema yog ib txoj hauv kev kho cem quav. Qee tus neeg kuj siv nws los kho fecal incontinence lossis tshem lawv cov quav ua ntej kev kho mob. Thaum muaj ntau hom enemas, xab npum suds enema tseem yog ib qho ntawm ntau hom, tshwj xeeb tshaj yog rau cem quav.

Puas yog qhov kev xeem thib ob?
Nyeem ntxiv

Puas yog qhov kev xeem thib ob?

Qhov thib ob derivative yuav yog siv los txiav txim siab hauv zos extrema ntawm kev ua haujlwm raws li qee yam xwm txheej. Yog tias qhov kev ua haujlwm muaj qhov tseem ceeb rau qhov twg f′(x)=0 thiab qhov thib ob derivative yog qhov zoo ntawm qhov no, ces f muaj qhov tsawg kawg nkaus hauv zos ntawm no.