Ilensi yombono owodwa: Ilensi yonke inamandla afanayo kadokotela.Idizayinelwe ukulungisa inkinga yokubona efana nokubona eduze noma ukubona kude.Ifaka iphoyinti elilodwa lokugxila elinikeza umbono ocacile ebangeni elithile (eduze, elimaphakathi noma kude).
Ilensi ye-Varifocal: Ilensi eyodwa iza ngamandla ahlukahlukene anikezwa ngudokotela ukuze ilungise eduze, okumaphakathi, nokubona kude.Ifaka ushintsho oluncane kancane kumandla kadokotela ukusuka phezulu ukuya phansi kwelensi, okuvumela izinguquko ezingenamthungo phakathi kwamabanga ahlukene wokubuka.Ngenxa yokuthi amandla kadokotela ahamba kahle ukusuka phezulu kuya phansi kwelensi, abizwa nangokuthi amalensi aqhubekayo.
Yikuphi okungcono umbono owodwa noma multifocal?
Uma ucabangela ukuthi amalensi ombono owodwa noma amalensi amaningi angcono kuwe, kunezici ezimbalwa okufanele uzicabangele:
∙Izidingo zombono: Uma udinga kuphela ukulungisa uhlobo olulodwa lokubona (njengokubona eduze noma ukubona kude), amalensi okubona okukodwa angcono.Amalensi ama-Multifocal afaneleka kangcono uma unezinkinga zokubona eziningi noma udinga ukulungiswa kokubona eduze nebanga.
∙Ukunethezeka: Amalensi okubona okukodwa akwenza kube lula ukwenza imisebenzi ethile, njengokufunda noma ukushayela, ngoba enzelwe ibanga elilodwa.Kodwa-ke, uma ujwayele ukushintsha phakathi kwemisebenzi yokubona eduze nakude, amalensi e-multifocal angahlinzeka ngoshintsho olungenamthungo phakathi kwamabanga ahlukene.
∙Indlela yokuphila: Cabangela indlela yakho yokuphila nemisebenzi yansuku zonke.Isibonelo, uma uchitha isikhathi esiningi usebenza kukhompuyutha noma ufunda,ama-lens amaningizingase zibe nenzuzo enkulu ngoba zinganikeza umbono ocacile emabangeni ahlukene ngaphandle kokushintsha phakathi kwezibuko ezihlukene.
∙Isikhathi Sokulungisa: Kubalulekile ukuqaphela ukuthi abanye abantu bangase badinge isikhathi sokulungisa lapho beshintshela kumalensi ezinto eziningi, njengoba lokhu kuhilela ukulungisa izindawo okugxilwe kuzo ezihlukene.Amalensi okubona okukodwa ngokuvamile awabi naso lesi sikhathi sokulungisa.
∙Impilo Yamehlo: Impilo yamehlo akho kanye nanoma yiziphi izimo ezingaphansi kungase kuthinte ukukhetha kwakho amalensi ombono owodwa uma kuqhathaniswa namalensi amaningi.Uchwepheshe wakho wokunakekelwa kwamehlo angakunikeza isiqondiso ngokusekelwe ezidingweni zakho ezithile zezempilo zamehlo.
Kafushane, ukukhetha okungcono phakathi kwamalensi ombono owodwa kanye namalensi amaningi ancike ezidingweni zakho zokubona, imisebenzi yansuku zonke, nempilo yamehlo.Kubalulekile ukuxoxa ngalezi zici nochwepheshe bakho bokunakekelwa kwamehlo ukuze uthole inketho engcono kakhulu kuwe.
Ngazi kanjani ukuthi ngidinga umbono owodwa noma amalensi aqhubekayo?
Ukunquma ukuthi udingaamalensi ombono owodwa or amalensi aqhubekayo,cabangela izici ezilandelayo bese uxoxa ngazo nochwepheshe bakho bokunakekelwa kwamehlo:
∙ I-Presbyopia: Uma uneminyaka engaphezu kuka-40 futhi unobunzima bokubona izinto eziseduze, ungase ube ne-presbyopia.Amalensi aqhubekayo asiza ukuxazulula le nkinga ehlobene neminyaka ngokuhlinzeka ngoshintsho olungenazihibe ukusuka ekuboneni ngebanga phezulu ukuya eduze kokubona ngezansi.
∙ Izidingo eziningi zokubona: Uma unezidingo ezihlukene zokubona zebanga, okumaphakathi, nokuseduze, njengokufunda, ukusebenza ngekhompyutha, nokushayela, amalensi aqhubekayo angakunikeza ukubona okucacile kuwo wonke amabanga ngaphandle kwesidingo sokushintsha phakathi kwamapheya amaningi ezingilazi.
∙ Indlela yokuphila nemisebenzi yansuku zonke: Cabangela imisebenzi yakho yansuku zonke nokuthi ushintsha kangaki phakathi kwemisebenzi ehlukahlukene ebonakalayo.Uma ujwayele ukushintsha phakathi kwemisebenzi yokubona eduze nebanga, amalensi aqhubekayo angakunikeza ukunethezeka nokulungiswa kokubona okungenazihibe.
∙ Impilo Yamehlo: Ezinye izimo zempilo yamehlo noma izinkinga zokubona zingase zibonise isidingo sezinhlobo ezithile zamalensi.Xoxa nganoma yikuphi ukukhathazeka ngempilo yamehlo nochwepheshe wokunakekelwa kwamehlo ukuze uthole izinketho ezingcono kakhulu zamalensi ngezidingo zakho.
∙ Okuncamelayo nokunethezeka: Abanye abantu bangase bathande ukunethezeka nobuhle bamalensi aqhubekayo, kuyilapho abanye bangathola amalensi ombono owodwa ekhululeke kakhudlwana emisebenzini ethile.
Ekugcineni, ukuhlolwa kwamehlo okuphelele kanye nengxoxo nochwepheshe wokunakekelwa kwamehlo kuzosiza ekunqumeni ukuthi amalensi ombono owodwa noma amalensi aqhubekayo angcono kakhulu ezidingweni zakho zombono nendlela yokuphila.Ngokusekelwe kuzidingo zakho ezihlukile, uchwepheshe wokunakekelwa kwamehlo angakuncoma izinketho zamalensi ezifanele kakhulu.
Yebo,amalensi ombono owodwaingakwazi ukulungisa i-astigmatism.I-Astigmatism iyiphutha elivamile elivela ku-refractive elibangelwa i-cornea noma ilensi emise ngendlela engavamile ngaphakathi kweso, okubangela ukubona okufiphele noma okuhlanekezelwe emabangeni ahlukene.Amalensi okubona okukodwa angabhekana ngokuphumelelayo ne-astigmatism ngokuhlanganisa amandla okulungisa adingekayo ukuze anxephezele ukugoba okungavamile kokubona kweso.Uma kuziwa ekulungiseni i-astigmatism, amalensi okubona okukodwa angenziwa ngendlela oyifisayo ukuze ahambisane nemiyalelo kadokotela edingekayo ukuze kulungiswe iphutha lokuphikisa elihlobene nesimo.Lo myalelo kadokotela unqunywa ngokuhlolwa kwamehlo okuphelele okwenziwa uchwepheshe wokunakekelwa kwamehlo, okuhlanganisa izilinganiso zokuhlola izinga nokuqondiswa kwe-astigmatism esweni ngalinye.Imiyalelo yelensi yombono owodwa yokulungisa i-astigmatism ngokuvamile ihlanganisa ingxenye yamandla ayisilinda ngaphezu kwamandla ayindilinga.Amandla e-cylinder abalulekile ekuphenduleni izinguquko ekujikeni kwe-cornea noma i-lens, okuqinisekisa ukuthi ukukhanya kunqanyuliwe futhi kugxilwe ngendlela efanele ku-retina.Ngokuhlanganisa lokhu kulungiswa okuqondile kwe-astigmatism ekwakhiweni kwelensi, amalensi okubona okukodwa anganxephezela ngempumelelo ukufiphala nokuhlanekezela okutholwa abantu abane-astigmatism.Kubalulekile ukuqaphela ukuthi amalensi ombono owodwa we-astigmatism ahlukahlukene futhi angahlangabezana nezidingo ezihlukahlukene zokubona, okuhlanganisa ibanga, ukubona eduze, noma okumaphakathi.Kungakhathaliseki ukuthi asetshenziselwa izibuko noma ama-contact lens, lawa ma-lens afanele abantu bayo yonke iminyaka nge-astigmatism, ngaleyo ndlela ahlangabezane nezinhlobonhlobo zendlela yokuphila kanye nezidingo ezibonakalayo.Uma kuchazwe kahle, ama-lens ombono owodwa we-astigmatism anganikeza induduzo nombono.Ngokubhekana nokungahambi kahle kokuma kweso, lawa ma-lens enza abantu bakwazi ukuthuthukisa ukugxila, ukunciphisa ukukhathala kwamehlo, futhi bathuthukise ikhwalithi yokubuka iyonke.Lokhu kusiza ukunikeza umuzwa obonakalayo onethezeke nogculisayo kulabo abathembele kumalensi ombono owodwa ukuze balungise i-astigmatism.Kafushane, amalensi okubona okukodwa ayakwazi ukulungisa i-astigmatism ngokuhlanganisa incwadi kadokotela eyenziwe ngokwezifiso ecabangela iphutha elithile le-refractive elihlotshaniswa ne-astigmatism.Ngokuhlinzeka ngokulungisa ngendlela oyifisayo, lawa ma-lens aklanyelwe ukuthuthukisa umbono wabantu abane-astigmatism futhi athuthukise ikhwalithi yokubona iyonke.
Isikhathi sokuthumela: Feb-01-2024