Kev faib ua kua Crystal Vision Charts

Daim duab qhia pom LCD feem ntau muab faib ua pawg hauv qab no raws li nws txoj haujlwm thiab daim ntawv:
1. Khoos phis tawj raws li daim duab qhia pom LCD: Nws yog nyob rau hauv daim ntawv ntsug thiab feem ntau muaj lub vijtsam LCD thiab lub hauv paus loj, tsim nyog siv rau hauv cov chaw tshaj lij xws li ophthalmic tsev kho mob thiab chaw kho mob.
2. Handheld LCD vision meter: Nrog cov duab meej meej, qhov tseeb calibration, thiab kev ua haujlwm yooj yim, nws tsim nyog siv rau ntau lub tsev kho mob ophthalmic thiab kuaj tsheb.
3. Mobile LCD vision chart: haum rau siv nyob rau hauv ntau qhov chaw thiab muaj cov yam ntxwv ntawm yooj yim portability thiab ua hauj lwm.
4. Daim ntawv qhia hluav taws xob pom kev: Kev siv cov khoom siv digital thiab tib neeg-lub computer kev sib cuam tshuam, nws muaj zog ua haujlwm thiab tuaj yeem ua cov ntaub ntawv rov qab, tsim nyog siv rau hauv cov chaw tshaj lij xws li ophthalmic tsev kho mob thiab cov chaw kho mob.
5. Cov tsom iav ntse: muaj peev xwm pom kev hmo ntuj, kev nthuav dav, tsom, xim hloov kho, sib piv, thiab lwm yam haujlwm, tsim nyog rau cov neeg tsis pom kev thiab cov neeg uas ntsib cov ntxaij vab tshaus hauv computer ntev.