Tsom iav nrog qhov - peb cia siab tias cov nyhuv?

Pinhole tsom-iav, los yog tsom iav nrog qhov, raws li cov manufacturers, yog ib tug kws qhia rau pom kev kho. Nws yuav tau kho thiab myopia thiab hyperopia. Manufacturers kuj cog lus paub tsis pom kev nrog astigmatism thiab asthenopia (qhov muag nkees, mob).

Nearsightedness (myopia) tshwm sim nyob rau hauv tus txiv neej thaum lub deformation ntawm lub ceev ceev, nyob rau hauv uas lub teeb rays tsis teem rau lub retina, tab sis nyob rau hauv pem hauv ntej ntawm nws. Yog vim li cas rau qhov no tshwm sim - ib tug weakening ntawm lub qhov muag nqaij, uas tuav ib cov kua. Hyperopia - nws yog ib tug tshwm sim nyob rau hauv uas ib tug duab yog tsim los rau cov kawm retina. Feem ntau cov feem ntau, qhov no muaj hnub nyoog txog kev hloov. Astigmatism - yog ib tug complex nrig txog kev pom kev tsis taus, uas thiaj li muaj qhov muag pom kev pom tseeb tseeb nyob rau hauv qhov kev ncua deb thiab nyob ze.

Tsom iav nrog qhov yog thaum xub thawj pom looj tsom iav dub tab sis es tsis txhob ntawm lo ntsiab muag lawv muaj ib lub phaj nrog me me qhov. Manufacturers hais tias qhov no yog ib tug tshiab txoj kev loj hlob, tsim los pab rau lub hauv paus ntawm kev cai lij choj ntawm kho qhov muag physics (refraction, defragmentation, cuam tshuam luminous flux). Rau cov neeg tsis versed nyob rau hauv physics thiab cov tshuaj, cov phenomena tshwm mysterious thiab tsis meej heev. Tab sis delve rau hauv cov lus, tsis muaj ib tug muaj. Cov kev khiav hauj lwm hauv paus ntsiab lus ntawm tej ntsiab lus yog raws li nyob rau hauv tus kwv defragmentation phenomenon thaum ua qhov tob ntawm daim teb, vim uas cov duab tsom raws nraim nyob rau hauv lub retina, thiab lub zeem muag pab. Tsis tau no phenomenon yog hu ua tus aperture nyhuv ( "peeping rau hauv lub qhov"). Nyob rau hauv tas li ntawd, txo nyhuv ntawm lub qhov muag nqaij, uas muaj txhawb mus rau lawv so.

Producers cog lus tias lub tsom iav nrog qhov ntawm lub caij nyoog ua kevcai nco txog cov lus qhia thiab siv lawv rau tsawg kawg 30 feeb ib hnub twg yuav muaj peev xwm rov qab mus rau ib puas feem pua pom kev nyob rau hauv cia li ib lub xyoo. Nws yuav tsum tau mus pib nrog 10 feeb. Rau cov thawj lub sij hawm ib tug neeg muaj kev tsis xis nyob, tab sis tau siv thaum lub sij hawm. Nyob rau hauv cov iav koj yuav nyeem tau, saib TV, ua hauj lwm rau lub computer, ua lwm yam hauj lwm.

Yog lwm saib. Muaj ntau cov kws txawj ntseeg tau hais tias lub tsom iav nrog qhov - puas lub cuab tam. Txij li thaum myopia yog yuav luag irreversible nyob rau hauv nws tus kheej, uas yog, tsis muaj lwm cuam tshuam, ib tug workout tsis tau tshem ntawm nws, koj muaj peev xwm tsuas nres tsis tau pom kev. Hyperopia yog yooj yim los mus tiv thaiv qhov muag tsom kwm hom, thiab ua tau zoo tshwj xeeb ce rau lub qhov muag. Astigmatism - yog feem ntau ib tug congenital defect ntawm view, koj yuav tau tshem ntawm, tab sis nyob rau tib lub myopia tseem nyob nrog rau txoj kev kho mob los ntawm nws.

American txoj kev tshawb no, check cov ntsiab lus nrog qhov ua nyob rau hauv lub tebchaws United States, tau qhia hais tias qhov no ntaus ntawv yog kom meej ua puas. Nws ua li tsis yog lawm tsis pom kev. Ntxiv mus, raws li nws muab tawm, qhov no yog tsis yog ib tug niaj hnub loj hlob. Zoo li pab kiag li lawm tau muaj nyob rau hauv cov Nrab Hnub nyoog. Tab sis, nrog perforated daim hlau thaum lub sij hawm hloov los ntawm ib tug lens, uas yog ntau npaum li cas yooj yim, thiab kev pab los ntawm nws ntau.

Yog li ntawd txawm tias cov ntsiab lus nyob rau hauv lub qhov thiab saib txawv heev thiab seemingly cog lus txuj ci tseem ceeb cures, yog tsim nyog xav txog yuav ua li cas no txuj ci tseem ceeb rationally. Tsis txhua yam uas zoo nkaus li nyob rau hauv qhov kev nthuav tawm raws li ib tug cutting-edge technology, lawv yog.