Iiglasi ezineemingxuma - ukulinda umphumo?

Ukugqithisa iiglasi, okanye iziglasi ezineemingxuma, ngokutsho kwabavelisi, zixhobo zokuqeqesha ukulungiswa kombono. Iyakwazi ukulungelelanisa kokubambisana kunye nokujonga phambili. Abakhiqizi banethemba lokuphucula amehlo kunye ne-astigmatism kunye ne-asthenopia (ukungapheli kwamehlo angapheliyo).

I-Myopia (myopia) ivela kubantu xa i-eyeball eye ikhubazekile, apho imibala ekhanyayo ayigxile kwi-retina, kodwa phambi kwayo. Isizathu salesi siqalo kukuba ubuthathaka beemisipha zamehlo zibambe i-apula. I-Hyperopia yinto ebonakalayo apho umfanekiso wezinto uvela emva kwe-retina yeso. Ngokuqhelekileyo oku kuninzi utshintsho oludala. I-Astigmatism yintlukwano ebonakalayo eyinkimbinkimbi, apho ubuncwane obubonakalayo buyancitshiswa emibini nakwiindawo ezikufutshane.

Iiglasi zokulungisa umboniso ngemingxuma ziqala ukujonga izikhanyiso zelanga, kodwa esikhundleni seelensi zineplati kunye nezimbobo ezincinci. Abavelisi bathetha ukuba lo luphuhliso olutsha, olwenziwe ngokusetyenzisweni kwemithetho ye-physics ye-optical (ukutshatyalaliswa, ukuxhatshazwa, ukuphazamiseka kokukhanya kokukhanya). Kuba abantu abangafundanga kwi-physics kunye neyeza, ezi zinto zibukeka ziyimfihlakalo kwaye azicacanga kakuhle. Kodwa ukuphonononga kwiinkcukacha akukho mntu unikezelayo. Umgaqo wokusebenza kweziglasi ezinjalo kusekelwe kwimeko yokukhushulwa kwento kunye nokwanda kwangoko kwintsimi, ngenxa yokuba umfanekiso ujoliswe ngqo kwi-retina, ephucula umbono. Nangona kunjalo le nto ibizwa ngokuba yimpembelelo yesithintelo ("ukugubungela emgodini"). Ukongezelela, isiphumo kwiimisipha zamehlo sincitshisiwe, esibangela ukuphumla kwabo.

Abavelisi bathembisa ukuba izigxobo ezineemingxube kunye nokugcinwa kwemiyalelo kunye nokuzisebenzisa okungenani imizuzu engama-30 ngosuku ziyakwazi ukubuyisela umbono wekhulu leepesenti ngokwaloo nyaka. Kucetyiswa ukuba uqale ngemizuzu eyi-10. Ekuqaleni, umntu uhlaselwa, kodwa ekugqibeleni uyasetyenziswa. Kule maglasi ungayifunda, ubukele iTV, usebenze kwikhompyutha, wenze enye imisebenzi.

Kukho enye imbono. Iingcali ezininzi zikholelwa ukuba iiglasi kunye nezimbobo zixhobo ezingenamsebenzi. Ekubeni i-myopia ingenakuphikiswa ngokwayo, oko kukuthi, ngaphandle kokuphazamiseka kwangaphandle, umntu akanakukulahla, unokuyeka kuphela ukungonakaliswa kombono. I-Hyperopia ilula ukukhusela, ukujonga umbuso obonwayo kunye nokwenza imisebenzi ekhethekileyo yamehlo. I-Astigmatism yisoloko isisiphene esingabonakaliyo , kwaye unyango olulungileyo lungasuswa, kodwa i-myopia iya kuhlala ihlala.

Ukufundwa kwezenzululwazi zaseMelika ezihlolisise iilazi kunye nezimbobo ezenziwe e-US, zibonise ukuba le fowuni ayinalusizo. Ayilungisi ukubona. Ukongezelela, njengoko kwavela, oku akusikho uphuhliso lwangoku. Ukulungelelaniswa okufanayo kufumaneka kwi-Middle Ages. Kodwa ekuhambeni kwexesha, iiplati eziphambeneyo zatshintshwa ngamalensi, elula ngakumbi, kwaye iinzuzo zikhulu.

Ngoko nangona iiglasi ezigodini kwaye zibukeka zingavamile, kwaye zibonakala zithembisa ukuphilisa ngokumangalisayo, kuyafaneleka ukuba sicinge ukuba lo mqondiso unengqiqo. Ayikho yonke into ebonakalayo kwiintengiso njengeteknoloji ephezulu, kunjalo.