Cov neeg sawv cev ntawm kev coj ua tshawb txuj ci tshiab niaj hnub thiab cov kev tshawb fawb ntau dua los ntawm kev ua kom muaj plab hnyuv plab hnyuv los ntawm tib neeg cov qia hlwb. Feem ntau, cov kev sim zoo sib xws yog nqa tawm ntawm cov tsiaj sim uas tau txais tib neeg. Nws tau paub tias cov kws tshawb fawb tau tswj hwm los ua kom lub qog kua muag ntawm ib tus neeg los ntawm qia hlwb, hloov lawv sim nas.
Ib qho ntawm cov haujlwm tseem ceeb ntawm tib neeg kua muag yog lub peev xwm los ntub lub qhov muag, tiv thaiv lawv los ntawm kom qhuav tawm. Hauv qee hom kab mob, lub qog lacrimal tseg kom ua haujlwm zoo, uas tuaj yeem ua rau qhov muag puas. Qhov no tuaj yeem pom nyob rau hauv qhov muag qhuav thiab nws kab mob khaub thuas uas cov kws tshawb fawb tsis zoo siv cov kua muag thiab hloov rau cov neeg mob.
Dr. Rachel Kalmann, tus kws kho mob ophthard los ntawm University Medical Center (UMC) hauv Utecht nyob hauv Netherlands yog ib tus sau phau ntawv tshiab ntawm txoj kev tshawb fawb tshiab. Tsab ntawv xov xwm nrog cov txiaj ntsig ntawm kev ua haujlwm tshawb fawb tau luam tawm nyob rau hauv lub xov tooj ntawm tes cell. Kalmann raws li nqe lus rau nws txoj kev vam meej tau sau tseg cov hauv qab no:
"Ua tsis tiav ntawm Lacrimal caj pas, piv txwv li, tej zaum yuav muaj lub txim loj, suav nrog qhov muag kom qhuav, suav nrog qhov muag ntawm lub qhov muag lossis txawm tias muaj lub ntsej muag. Thaum muaj mob hnyav, qhov no tuaj yeem ua rau dig muag. "
Kalmann coj cov qauv ntawm cov duab kua muag hauv cov nas, nqa cov xwm txheej rau kev ua haujlwm nrawm rau lawv hauv kev kuaj mob. Ntawm theem ob, cov kws tshaj lij ua kev sim ua piv txwv ntawm tib neeg kua muag kua muag, ua tau loj hlob ib qho khoom siv hluav taws xob microscopic.
Thaum kawg theem kawg, ua si tau kua muag ntawm ib tus neeg hloov cov nas los ntawm kev txhim kho kev ua tiav. Cov kws tshawb fawb nyob rau theem pib thiab tham txog kev pib hloov pauv ntawm cov qog kua muag rau cov neeg tseem yog thaum ntxov, tab sis tom qab kev kho mob no tuaj yeem pom tau tias yog kev coj ua ntawm cov tshuaj niaj hnub no.