I-lens yombonoI-lens iphela inamagunya afanayoyeza. Yenzelwe ukulungisa ingxaki yombono enjengoxinzelelo okanye uxinzelelo. Yenza indawo enye ekugxilwe kuyo ibonelela ngombono ocacileyo kumgama othile (kufutshane, ophakathi okanye kude).
Iilensi ze-darifocal: I-lens enye ifika kumagunya omisebenzi ukuba achanile, ophakathi, kunye nombono womgama. Iimpawu zotshintsho oluhamba kancinci kumayeza kagqirha ukusuka phezulu ukuya ezantsi kwelensi, zivumela utshintsho olungenamthungo phakathi komgama owohlukileyo. Kuba amandla kagqirha aqhubekile kakuhle ukusuka phezulu ukuya ezantsi kwelensi, babizwa ngokuba ziilensi zenkqubela phambili.
Yeyiphi umbono ongcono okanye okanye i-mulkocal?
Xa ujonga ukuba ingaba ingaba ingaba i-lensert yombono enye okanye iilensi ezininzi zingcono kuwe, zininzi izinto ekufuneka ziqwalaselwe:
∙IIMFUNO ZOKWENZA: Ukuba ufuna ukulungisa uhlobo olunye lombono (olunjengokusondela) Iilensi ze-Mulkocal zilungele ngcono ukuba uneengxaki ezininzi zombono okanye ufuna ukulungiswa kwembono ikufuphi nezemigama.
∙Ukulula: I-lens eyodwa yombono yenza kube lula ukwenza imisebenzi ethile, njengokufunda okanye ukuqhuba, kuba ilungiselelwe umgama omnye. Nangona kunjalo, ukuba upwile rhoqo phakathi kweMisebenzi yoKufuphi kunye neMibono ye-Mulkocal inokubonelela ngotshintsho olungenamthungo phakathi kwemigama eyahlukeneyo.
∙Indlela yokuphila: Cinga ngohlobo lwakho lokuphila kunye nemisebenzi yemihla ngemihla. Umzekelo, ukuba uchitha ixesha elininzi ukusebenza kwikhompyuter okanye ekufundeni,Iilensi ze-MulkocialIsenokuba yiluncedo ngakumbi kuba banokubonelela ngombono ocacileyo kwimigama eyahlukeneyo ngaphandle kokutshintsha phakathi kweglasi ezahlukeneyo.
∙Ixesha lokuhlengahlengiswa: Kubalulekile ukuba uqaphele ukuba abanye abantu banokufuna ixesha lohlengahlengiso xa kutshiwo iilensi ze-Mulkocal, njengoko oku kubandakanya ukulungelelanisa kwiindawo ezahlukeneyo. I-lensey yombono ayihlali ingenalo eli xesha lohlengahlengiso.
∙Impilo yamehlo: impilo yakho impilo kunye nazo naziphi na iimeko ezisisiseko zinokuchaphazela ukhetho lwakho lwe-lenses engatshatanga xa kuthelekiswa neelensi zezinto ezininzi. Ingcali yakho yamehlo yakho inokubonelela ngesikhokelo esekwe kwiimfuno zakho zempilo.
Kwisishwankathelo, ukhetho olufanelekileyo phakathi kweelensi zombono olunye kunye neelensi ze-mulkocal zixhomekeke kwimfuno yakho yobuqu, imisebenzi yemihla ngemihla, kunye nempilo yamehlo. Kubalulekile ukuba uxoxe ngezi zinto kwi-ofisi yakho yamehlo ukuze umisele olona khetho lufanelekileyo kuwe.
Yazi njani ukuba lufuna umbono ongatshatanga okanye iilensi ezinokuqhubela phambili?
Ukufumanisa ukuba uyafuna naI-lenses yombono or Iilensi ezihambelanayo,Cinga ngezi zinto zilandelayo kwaye uxubushe ngentloko yakho yamehlo:
∙ pressopia: Ukuba ungaphezulu kwe-40 kwaye unengxaki yokubona izinto ezisondeleyo, unokufumana iPrestoneopia. Iilensi ezihambelanayo zinceda ukusombulula le ngxaki ihambelana nale ngxaki ihambelana nobudala ngokubonelela ngotshintsho olungenamda ukusuka kumgama ophezulu ukuya ezantsi.
∙ Iimfuno ezininzi zombono: Ukuba unombono owahlukileyo womgama, ophakathi kunye nomboniso, umsebenzi wekhompyutha, kunye nokuqhuba, i-lenses eqhubekayo inokunika umbono ocacileyo wezibini zeglasi.
∙ Indlela yokuphila kunye nemisebenzi yemihla ngemihla: Cinga ngemisebenzi yakho yemihla ngemihla kwaye utshintsha kangaphi phakathi kwemisebenzi eyahlukeneyo. Ukuba upwile rhoqo phakathi kweyona misebenzi imbonakalo yomgama kunye nelensi yenkqubela phambili, i-lenses eqhubekayo inokubonelela ngokulula kunye nokulungiswa kwembono engenamthungo.
Impilo yamehlo: Iimeko ezithile zempilo zamehlo okanye iingxaki zombono zinokubonisa isidingo seentlobo ezithile zeelensi. Xoxa nakweyiphi na impilo yempilo yamehlo ngengcali yamehlo ukumisela ezona zinto zikhethiweyo zeelensi zeemfuno zakho.
∙ Ukukhetha kunye nentuthuzelo: Abanye abantu banokukhetha lula kwaye bafune iilensi eziqhubela phambili, ngelixa abanye banokufumana imibono enye yokubona.
Ekugqibeleni, uviwo olubanzi lweliso kunye nengxoxo kunye nengcali yamehlo iya kunceda ekufumanise ukuba ngaba iilensi zombono okanye iilensi zenkqubela phambili zilungele iimfuno zakho zombono kunye nendlela yokuphila yakho. Ngokusekwe kwiimfuno zakho ezizodwa, ubungcali bamehlo obuchule unokucebisa eyona ndlela ifanelekileyo ye-lensi.
Ewe,I-lenses yombonoinokulungisa i-atigmatism. I-Astigmatism yimpazamo eqhelekileyo yokuphindwayo ebangelwa yi-cornea engahambelaniyo okanye ilensi engaphandle kweliso, ebangela umbono ogqwethekileyo okanye ogqwethekileyo kumgama owahlukileyo. I-lensey yombono ye-lelsed inokuthetha ngempumelelo i-astigmatism ngokubandakanya amandla afanelekileyo okulungisa ukuhlawula i-curvature engaqhelekanga yeliso. Xa kufikwa kumba wokulungisa i-astigmatism, iilensi zombono zangatshatanga zinokwenziwa kwimiyalelo ethile efunekayo ukuze ikhuphe impazamo yokuphindwayo ezinxulumene nemeko. Lo myalelo ugqitywe ngoviwo lweliso elibanzi elenziwe yingcali yamehlo, equka imilinganiselo yokuvavanya isidanga kunye nesikhokelo se-astigmatism kwiliso ngalinye. Imigqaliselo enye yombono ye-lens yokulungisa i-astigmatism ihlala ibandakanya icandelo lamandla e-cylindrical ukongeza kumandla afizilayo. Amandla e-cylinder kubalulekile ukuba aphendule utshintsho kwi-curvature ye-cornea okanye ilensi, ukuqinisekisa ukuba ukukhanya kuyacocwa kwaye kugxilwe ngokuchanekileyo kwi-retina. Ngokufaka lo mthetho u-Astigmatism olandelelayo kwi-Lens, iilensi zombono enye zinokubuyisa i-blur kunye nokugqwetha abantu abane-atigmatism. Kufanelekile ukuba uqaphele ukuba i-lenses enye yombono ye-astigmatism ivelise kwaye ifezekise iintlobo ezahlukeneyo zombono, kubandakanya umgama, kufutshane, okanye umbono ophakathi, okanye umbono ophakathi. Nokuba isetyenziselwa iiglasi okanye iilensi zonxibelelwano, ezi lelo zilungele abantu bayo yonke iminyaka yonke ngokuchasene, ke ukuhlangana nodidi lwendlela yokuphila kunye neemfuno ezibonakalayo. Ukuba kumiselwe ngokuchanekileyo, ii-lenses zombono zombono ze-astigmatism zinokubonelela ngentuthuzelo nombono. Ngokulungisa ukungahambelani kwamehlo, ezi zelo zenza ukuba abantu baphucule abantu, banciphise ukudinwa kwamehlo, kunye nokonyusa umgangatho wokubonakalayo. Oku kunceda ekuboneleleni ngamava okhule ngakumbi kwaye aneliseke abo baxhomekeke kwi-lenses engatshatanga ukuba ilungiselele i-astigmatism. Isishwankathelo, iilensi zombono enye ziyakwazi ukulungisa i-astigmatism ngokubandakanya amayeza ahleliweyo athathela ingqalelo impazamo ethile ekhethekileyo enxulumene ne-astigmatism. Ngokubonelela ngokulungiswa ngokwezixhobo, ezi zelensi zenzelwe ukwenza umbono wabantu abanolwazi lokuzikhethela kwaye uphucule umbono wombono opheleleyo.
IXESHA LOKUQALA: FEB-01-2024