Ngokweminyaka, ukukwazi ukubona kubonakele nakwezo bantu abaye bafumana umbono ogqithiseleyo ebomini. Njengomthetho, kubafazi kunye namadoda emva kweminyaka engama-40, i-presbyopia ikhula, okanye i-long-longsightedness. Ngokuqhelekileyo, le ngxaki ayisoloko ibuhlungu ngakumbi umgangatho wobomi, nangona kunjalo, kuya kubonakala xa uzama ukufunda incwadi okanye iphephandaba.
Kwimeko enjalo, oogqirha bancomela ukuthenga iiglasi ezikhethekileyo zokufunda. Namhlanje kwi-salon nganye ye-optics iindidi ezahlukeneyo zeevenkile ezifanayo, ziphakathi kwazo apho kunzima ukufumana imodeli efanelekileyo.
Iindidi zeziglasi zokufunda
Phakathi kokuhlanganiswa okubanzi kwezixhobo ezifanayo zihlula ezi ntlobo zilandelayo:
- iiglasi kunye neelayi-focus focus . Banikeza ubunzulu obubonakalayo kumgama wama-30-40 ngamentimitha ukusuka kwamehlo kwaye zijoliswe kuphela ekufundeni. Ukuba ngaphambili ubenxibe iziglasi okanye iilensi zokulungiswa kweengxaki ze-ophthalmic, le ncedisi ifanele ibe yinto yesibini, yenza umsebenzi wayo ngokukhawuleza. Ngeemeko ezinjalo, umntu uhlala ethenga ukugubungela iiglasi zegalasi ekufundeni kwimeko ukuze azikhuphe ixesha elithile aze asuse ngokukhawuleza emva kokufunda uncwadi oluyimfuneko;
- iiglasi ezincinci-iinqununu zokufunda zineentensi, zahlula kwiindawo ezi-2 ezibonakalayo. Ingxenye ephezulu yeengilazi zenzelwe ukuqwalaselwa ngokubanzi ngezinto ezikude, kunye nesezantsi ekuphuculeni imbono ecaleni, xa isalathiso saso siqhubela phambili. Ingakumbi, le meko ibonakala xa ufunda incwadi okanye iphephandaba. Ngenxa yesakhelo esincinci kunye ne-lens, eyahlukana kwiindawo ngokukhethekileyo, iziglasi zingasetyenziselwa kwiimeko ezahlukileyo, ngoko zingaphinde zithathele iimbini eziliqela kunye;
- ezifanelekileyo zokufunda iziglasi ukuya kumhla zizinto ezineenkcukacha ezihamba phambili kunye ne-lens , i-optical amandla enyukayo okanye iyancipha ngokuxhomekeke kwindlela ekude ngayo kwinto enokuqwalaselwa ngayo. Ezi ngqungquthela zenzelwe ngamnye umntu ngamnye kwaye zibiza kakhulu, ngoko ke akuyena wonke umntu onokukwazi ukuthenga le fowuni.
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Ngokwahlukileyo kuyafaneleka ukuphawula izibuko zokufunda amanga . Nangona oogqirha bengacebisi ukuba bafunde kwindawo ephakamileyo, abantu abaninzi abanakukuyeka lo mkhuba. Kule meko, ungasebenzisa iiglasi ezikhethekileyo eziza kususa ubunzima obugqithiseleyo kwamehlo nangomlomo wesibeletho. Ngethuba elifanayo, ngokuqinisekileyo bonke abantu bangasebenzisa ukufikelela okunjalo, kungakhathaliseki ubudala kunye nobukho beengxaki ze-ophthalmologic.
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Njengoko uyakubona, xa ukhetha izibuko zokufunda, kubalulekile ukucingisisa ngokungabonakali kakhulu ukubonakala, njengempawu esebenzayo yemodeli ethile. Nangona kunjalo, kwaye ukuyila akufanele kulibaleke.
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