Ilensi yombono omnye: Ilensi iyonke inamandla afanayo kagqirha.Yenzelwe ukulungisa ingxaki yombono efana nokubona kufutshane okanye ukubona kude.Ibonisa indawo enye ekugxilwe kuyo enika umbono ocacileyo kumgama othile (kufuphi, ophakathi okanye kude).
I-Varifocal lens: I-lens enye iza kumandla ahlukeneyo achazwe ngugqirha ukulungisa kufutshane, okuphakathi, kunye nombono womgama.Ibonisa utshintsho oluthe ngcembe kumandla achazwe ngugqirha ukusuka phezulu ukuya ezantsi kwilensi, evumela utshintsho olungenamthungo phakathi kwemigama eyahlukeneyo yokujonga.Ngenxa yokuba amandla omyalelo ahamba kakuhle ukusuka phezulu ukuya ezantsi kwelensi, zikwabizwa ngokuba ziilensi eziqhubekayo.
Ngowuphi ongcono umbono omnye okanye i-multifocal?
Xa ucinga ukuba iilensi zombono omnye okanye iilensi ezininzi zingcono kuwe, kukho izinto ezininzi ekufuneka uziqwalasele:
∙Iimfuno zombono: Ukuba ufuna kuphela ukulungisa uhlobo olunye lombono (njengokubona kufutshane okanye ukubona kude), iilensi zombono omnye zingcono.Iilensi zeMultifocal zifaneleka ngcono ukuba uneengxaki ezininzi zombono okanye ufuna ulungiso lombono okufutshane nomgama.
∙Uncedo: Iilensi zombono omnye zenza kube lula ukwenza imisebenzi ethile, njengokufunda okanye ukuqhuba, kuba zilungiselelwe umgama omnye.Nangona kunjalo, ukuba utshintsha rhoqo phakathi kwemisebenzi yombono okufutshane kunye nokude, iilensi ezininzi zinokubonelela ngotshintsho olungenamthungo phakathi kwemigama eyahlukeneyo.
∙Indlela yokuphila: Qwalasela indlela ophila ngayo kunye nemisebenzi yemihla ngemihla.Umzekelo, ukuba uchitha ixesha elininzi usebenza kwikhompyuter okanye ufunda,iilensi ezininzizinokuba luncedo ngakumbi kuba zinokunika umbono ocacileyo kwimigama eyahlukeneyo ngaphandle kokutshintsha phakathi kweeglasi ezahlukeneyo.
∙IXesha loLungiso: Kubalulekile ukuqaphela ukuba abanye abantu banokufuna ixesha lohlengahlengiso xa betshintshela kwiilensi ezininzi, njengoko oku kubandakanya uhlengahlengiso kwiindawo ekugxilwe kuzo ezahlukeneyo.Iilensi zombono omnye zihlala zingenalo eli xesha lohlengahlengiso.
∙Impilo yamehlo: Impilo yamehlo akho kunye naziphi na iimeko eziphantsi zinokuchaphazela ukhetho lwakho lweelensi zombono omnye ngokuchasene neelensi ezininzi.Ingcali yakho yokhathalelo lwamehlo inokubonelela ngesikhokelo ngokusekelwe kwiimfuno zakho zempilo zamehlo.
Isishwankathelo, ukhetho olungcono phakathi kweelensi zombono omnye kunye neelensi ezininzi zixhomekeke kwiimfuno zakho zombono, imisebenzi yemihla ngemihla, kunye nempilo yamehlo.Kubalulekile ukuxoxa ngezi zinto kunye nengcali yakho yokhathalelo lwamehlo ukumisela eyona ndlela ilungileyo kuwe.
Ndazi njani ukuba ndifuna umbono omnye okanye iilensi eziqhubekayo?
Ukuqinisekisa ukuba uyafunaiilensi zombono omnye or iilensi eziqhubekayo,qwalasela le miba ilandelayo kwaye uxoxe ngayo nengcali yakho yokhathalelo lwamehlo:
∙ I-Presbyopia: Ukuba ungaphezulu kwama-40 kwaye unobunzima bokubona izinto ezikufutshane, unokuba ne-presbyopia.Iilensi eziqhubela phambili zinceda ukusombulula le ngxaki inxulumene nobudala ngokubonelela ngenguqu engenamthungo ukusuka kumbono womgama phezulu ukuya kumbono okufutshane ezantsi.
∙ Iimfuno zombono ezininzi: Ukuba uneemfuno ezahlukeneyo zombono womgama, ophakathi, kunye nombono okufutshane, njengokufunda, umsebenzi wekhompyuter, kunye nokuqhuba, iilensi eziqhubekayo zinokubonelela ngombono ocacileyo kuyo yonke imigama ngaphandle kwesidingo sokutshintsha phakathi kweeperile ezininzi zeeglasi.
∙ Indlela yokuphila kunye nemisebenzi yemihla ngemihla: Qwalasela imisebenzi yakho yemihla ngemihla nokuba utshintsha kangaphi phakathi kwemisebenzi yokubonwayo eyahlukeneyo.Ukuba utshintsha rhoqo phakathi kwemisebenzi yombono okufutshane kunye nomgama, iilensi eziqhubekayo zinokubonelela ngokulula kunye nokulungiswa kombono okungenamthungo.
∙ Impilo yamehlo: Iimeko ezithile zempilo zamehlo okanye iingxaki zombono zingabonisa imfuno yeentlobo ezithile zeelensi.Xoxa ngazo naziphi na iinkxalabo zempilo yamehlo kunye nengcali yokhathalelo lwamehlo ukumisela ezona zikhetho zibalaseleyo zelensi kwiimfuno zakho.
∙ Ukhetho kunye nentuthuzelo: Abanye abantu banokukhetha lula kunye nobuhle beelensi eziqhubekayo, ngelixa abanye banokufumana iilensi zombono omnye zikhululeke ngakumbi kwimisebenzi ethile.
Ekugqibeleni, uviwo olubanzi lwamehlo kunye nengxoxo kunye nengcali yokunakekelwa kwamehlo kuya kunceda ukufumanisa ukuba iilensi zombono omnye okanye iilensi eziqhubekayo zilungele iimfuno zakho zombono kunye nendlela yokuphila.Ngokusekelwe kwiimfuno zakho ezizodwa, ingcali yokunakekelwa kwamehlo inokucebisa eyona ndlela ifanelekileyo yeelensi zokukhetha.
Ewe,iilensi zombono omnyeinokulungisa i-astigmatism.I-Astigmatism yimposiso eqhelekileyo yokubona imbonakalo ebangelwa yicornea emile ngendlela engaqhelekanga okanye ilensi ngaphakathi kweliso, ebangela ukuba kungaboni kakuhle okanye kugqwetheke kwimigama eyahlukeneyo.Iilensi zombono omnye zinokujongana ngempumelelo ne-astigmatism ngokubandakanya amandla ayimfuneko okulungisa ukuhlawulela ukugoba okungaqhelekanga kwe-optics yeliso.Xa kuziwa ekulungiseni i-astigmatism, iilensi zombono omnye zinokuthi zenziwe ngokwezifiso kumyalelo othile ofunekayo ukuze kulungiswe impazamo ye-refractive ehambelana nemeko.Lo myalelo umiselwa ngovavanyo olubanzi lwamehlo olwenziwa ngumsebenzi wokunyamekela kwamehlo, okubandakanya imilinganiselo yokuvavanya iqondo kunye nolwalathiso lwe-astigmatism kwiso ngalinye.Imiyalelo yelensi yombono omnye yokulungisa i-astigmatism idla ngokubandakanya icandelo lamandla e-cylindrical ukongeza kumandla angqukuva.Amandla e-cylinder abaluleke kakhulu kwi-akhawunti yeenguqu kwi-curvature ye-cornea okanye i-lens, ukuqinisekisa ukuba ukukhanya kuhlanjululwe kwaye kugxininiswe ngokuchanekileyo kwi-retina.Ngokubandakanya olu lungiso lukhethekileyo lwe-astigmatism kuyilo lwelensi, iilensi zombono omnye zinokubuyekeza ngokufanelekileyo ukufiphala kunye nokugqwetheka okufunyanwa ngabantu abane-astigmatism.Kubalulekile ukuqaphela ukuba iilensi zombono omnye ze-astigmatism zisebenza ngeendlela ezahlukeneyo kwaye zinokuhlangabezana neemfuno ezahlukeneyo zombono, kubandakanya umgama, kufutshane, okanye umbono ophakathi.Ingaba zisetyenziselwa iiglasi okanye iilensi zoqhagamshelwano, ezi lens zifanelekile kubantu bayo yonke iminyaka kunye ne-astigmatism, ngaloo ndlela ihlangabezana neendlela ezininzi zokuphila kunye neemfuno ezibonakalayo.Ukuba ichazwe ngokuchanekileyo, iilensi zombono omnye ze-astigmatism zinokunika induduzo kunye nombono.Ngokujongana nezitenxo kwimilo yamehlo, ezi lens zenza abantu baphucule ukugxila, ukunciphisa ukudinwa kwamehlo, kunye nokuphucula umgangatho wokubonwayo jikelele.Oku kunceda ukubonelela ngokukhululeka ngakumbi kunye namava okubonwayo awonelisayo kwabo baxhomekeke kwiilensi zombono omnye ukulungisa i-astigmatism.Isishwankathelo, iilensi zombono omnye ziyakwazi ukulungisa i-astigmatism ngokubandakanya ummiselo owenziwe ngokwezifiso othathela ingqalelo impazamo ethile ye-refractive ehambelana ne-astigmatism.Ngokubonelela ngolungiso olulungelelanisiweyo, ezi lens ziyilelwe ukukhulisa umbono wabantu abane-astigmatism kunye nokuphucula umgangatho wombono jikelele.
Ixesha lokuposa: Feb-01-2024