Qee cov neeg xav txog "ntshai heev" txog cov xwm txheej ntawm cov koos pij tawj los ntawm lub lag luam coj mus muag ntawm cov chaw muag khoom ntawm cov kev ntsuas no (khoos phis tawj). Yuav kom nkag siab seb lawv puas tsim nyog, peb tig mus rau cov ntaub ntawv pov thawj scientifically.
Vim li cas peb thiaj xav kom lub tsom iav, lawv puas pab?
- Lub computer screen tuaj yeem lub teeb nyob rau hauv qhov ntau ntawm liab doog rau liab, i.e. tag nrho spectrum. Tab sis qhov hnyav tshaj rau lub qhov muag tau muaj violet thiab xiav dej luv luv, uas nyob ib sab ultraviolet hluav taws xob. Lub zog hluav taws xob ntawm hluav taws xob nrog kev ua hauj lwm hauv lub computer ua rau ntau qhov muag kab mob.
- Nws yog pov thawj tias cov kev luv luv tib-lem no tau tawg khiav thiab ua rau lawv txoj kev. Yog li no, yuav luag tsis poob rau hauv qhov taw tes ntawm qhov retina, uas nkag mus rau cov xim ntsuab thiab daj (ntev-nthwv dej). Yog li ntawd, tus duab saib los tsis pom tseeb.
- Raws li cov kev tshawb fawb ntawm tus xibfwb Fedorov, qhov liab cheeb tsam ntawm cov spectrum txhawb nqa tus tsuj roj ntawm cov txheej txheem metabolic, qhov kho tshiab ntawm lub hlwb ntawm lub qhov muag nqaij. Ie. Cov rays no tsis muaj kev cuam tshuam txog kev raug mob.
Yog li, yog hais tias koj tshem tawm ntawm lub monitor los ntawm lub teeb meem violet thiab xiav rays, koj yuav tau tshem ntawm load hnyav rau lub qhov muag thiab txo qhov kev faib ua feem ntawm lub teeb scattering, uas yuav nce lub clarity ntawm daim duab.
Yog li ntawd, tiv thaiv lub computer tsom iav yog qhov tseem ceeb thiab zoo heev. Tab sis tsuas yog tsis tiv thaiv electromagnetic cuam tshuam, raws li ib co unscrupulous Sellers ntawm fakes paub tseeb, tab sis rau selective kis ntawm cov xim absendi xim.
Yog li, ua tsaug rau qhov tshwj xeeb lim dej ntawm cov lo ntsiab muag ntawm cov tsom iav, cov nram qab no tiav:
- kev nqus tau cov kab mob ultraviolet radiation;
- kev kis tus kab mob liab-txiv kab ntxwv ntawm cov spectrum rau lub qhov muag;
- Ua kom muaj xim;
- txo tus yam ntxwv ntawm qhov kev ntsuas, ci ntsa iab;
- muab ib tug zoo zoo ib ntawm cov duab pom.
Yog li ntawd, tej zaum yuav muaj cov kab mob ntawm qhov muag txo, qaug zog zuj zus lawm, thiab ua haujlwm muaj peev xwm nce ntxiv (ntawm kwv yees li 30%).
Yuav ua li cas xaiv lub computer tsom iav?
Thaum xaiv lub khoos phis tawj, koj yuav tsum xub mus ntsib kws kho mob. Tom qab tag nrho, tsis yog tag nrho cov ntawm lawv yog tib yam, thiab ntawm no nws yog ib qhov tsim nyog yuav tsum coj mus rau hauv tus account tus neeg lub zeem muag. Dab tsi yog qhov khoos phis tawj tau zoo dua rau koj, tuaj yeem txiav txim siab hauv cov khoom siv khib nyiab, qhov kev sib tham ntawm oculist yog muab.
Lub khoob khoos-kas-ka lub computer tuaj yeem nrog lossis tsis muaj cov diopters. Nws yog ib qho ua tau los ua ke tsom iav nrog qhov muag lo ntsiab muag uas tsis muaj ntau hom ntawm ob lub qhov muag.
Lo ntsiab muag rau khoos phis tawj rau ntawm lub tshuab yog:
- monofocal;
- bifocal;
- variofocal;
- trifocal;
- hnyav (multifocal).
Muaj tsom iav rau lub computer ntawm ntau theem ntawm dimming. Koj tuaj yeem xaiv cov txheej txheem uas haum rau koj lub ntsej muag.
Cov ntawv thov ntxiv
Nyob rau hauv xws glasses nws yog xis nyob rau hauv artificially zes chav, tshwj xeeb tshaj yog nrog fluorescent yaj. Tsis tas li ntawd, lub tshuab khoos phis tawj siv tau sab nraud ntawm huab cua uas muaj hnub zom thiab hnub ci. Yog li ntawd, lawv tuaj yeem hu ua universal, uas tsim nyog rau kev hnav mus tas li. Tsis muaj qhov tsis haum rau lawv, lawv kuj pom zoo rau cov me nyuam thaum siv sijhawm hauv computer.