Ilensi yombono owodwa: Wonke ama-lens anamandla afanayo kadokotela. Yakhelwe ukulungisa inkinga yombono efana neseduze noma ububi. Ifaka iphuzu elilodwa lokugxila elihlinzeka ngombono ocacile ebanga elithile (eduze, okuphakathi noma kude).
I-Varifocal Lens: Ilensi eyodwa iza ngamandla ahlukahlukene kadokotela ukulungisa okusondele, okuphakathi nendawo, nombono webanga. Ifaka ushintsho olwa kancane kancane kumandla kadokotela kusuka phezulu kuya phansi kwelensi, okuvumela ukuguqulwa okungenamthungo phakathi kwamabanga ahlukene okubuka. Ngoba amandla kamuthi athuthuka kahle ukusuka phezulu kuya phansi kwelensi, abizwa nangokuthi ama-lens athuthukayo.
Yikuphi umbono owodwa ongcono noma i-multifocal?
Uma ucabanga ukuthi amalensi wombono owodwa noma amalensi amaningi angcono kuwe, kunezici eziningana okufanele zicatshangelwe:
∙Izidingo Zombono: Uma udinga kuphela ukulungisa uhlobo olulodwa lombono (njengokubuka okuseduze noma ekubuseni), amalensi wombono owodwa angcono. Ama-lens amaningi afaneleka kangcono uma unezinkinga eziningi zombono noma udinga ukulungiswa kombono webanga eliseduze nebanga.
∙Ukusebenziseka lula: Amalensi wombono owodwa enza kube lula ukwenza imisebenzi ethile, njengokufunda noma ukushayela, ngoba alungiselelwe ibanga elilodwa. Kodwa-ke, uma uvame ukushintsha phakathi kwemisebenzi esondelene neyembono yede nede, amalensi amaningi anganikeza uguquko olungenamthungo phakathi kwamabanga ahlukene.
∙Indlela yokuphila: Cabanga ngokuphila kwakho nemisebenzi yansuku zonke. Isibonelo, uma uchitha isikhathi esiningi usebenza kwikhompyutha noma ngokufunda,amalensi amaningiKungaba yinzuzo enkulu ngoba zinganikeza umbono ocacile kumabanga ahlukene ngaphandle kokushintsha phakathi kwezibuko ezahlukahlukene.
∙Isikhathi sokulungiswa: Kubalulekile ukuqaphela ukuthi abanye abantu bangadinga isikhathi sokulungiswa lapho bavumelanisa ama-multifocal lens, ngoba lokhu kubandakanya ukujwayela amaphuzu ahlukile okugxila. Amalensi wombono owodwa ngokuvamile awanaso lesi sikhathi sokulungiswa.
∙I-Eye Health: Impilo yakho yamehlo nanoma yiziphi izimo ezingaphansi zingaba nomthelela nokukhethwa kwakho kwamalensi wombono owodwa okuqhathaniswa namalensi amaningi. Uchwepheshe wakho wokunakekelwa kwamehlo anganikeza umhlahlandlela ngokusekelwe kwizidingo zakho zezempilo zamehlo.
Ngokufundwa, ukukhetha okungcono phakathi kwamalensi wombono owodwa kanye namalensi amaningi kuncike kwizidingo zakho zombono zomuntu siqu, imisebenzi yansuku zonke, nempilo yamehlo. Kubalulekile ukudingida lezi zinto ngochwepheshe wakho wokunakekelwa kwamehlo ukuthola inketho engcono kakhulu kuwe.
Ngabe uyazi kanjani uma ngidinga umbono owodwa noma amalensi athuthukayo?
Ukuthola ukuthi udingaAmalensi wombono owodwa or ama-lens athuthukayo,Cabanga ngalezi zinto ezilandelayo bese uxoxa ngazo ngochwepheshe wakho wokunakekela iso:
Presbyopia: Uma ungaphezulu kwama-40 futhi ube nobunzima bokubona izinto eziseduze, ungahle ube ne-Presbyopia. Ama-lens athuthukayo asiza ukuxazulula le nkinga ehlobene nobudala ngokuhlinzeka ngoguquko olungenamthungo kusuka kumbono webanga phezulu kuya phezulu kombono phansi.
∙ Izidingo Zombono Eziningi: Uma unezidingo zombono ezihlukile zebanga, eliphakathi nendawo, kanye nombono oseduze, njengokufunda, amalensi athuthukayo, ama-lens athuthukayo anganikeza umbono ocacile kuwo wonke amabanga aphesheya kwezibuko.
Indlela yokuphila kanye nemisebenzi yansuku zonke: Cabanga ngemisebenzi yakho yansuku zonke nokuthi ushintsha kangaki phakathi kwemisebenzi ehlukene yokubuka. Uma uvame ukushintsha phakathi kwemisebenzi yokubuka eduzane nebanga, ama-lens athuthukayo anganikeza lula futhi ukulungiswa kombono ongenamthungo.
∙ Impilo Yamehlo: Izimo ezithile zezempilo zamehlo noma izinkinga zombono zingakhombisa isidingo sezinhlobo ezithile zamalensi. Xoxa noma yiziphi izinkathazo zezempilo zamehlo ngochwepheshe wokunakekelwa kwamehlo ukuthola izinketho zelensi ezinhle kakhulu zezidingo zakho.
∙ Okuncamelayo nenduduzo: Abanye abantu bangase bakhethe ukusebenziseka kalula kanye nama-aesthetics ama-lens athuthukayo, kanti abanye bangathola ama-Low Wind Loves akhululekile kakhulu emisebenzini ethile.
Ekugcineni, ukuhlolwa kwamehlo okuphelele kanye nengxoxo nomuntu onakekela iso kuzosiza ekuboneni ukuthi amalensi wombono owodwa noma amalensi athuthukayo angcono kakhulu ngezidingo zakho zombono nendlela yokuphila. Ngokusekelwe kwizidingo zakho ezihlukile, uchwepheshe wokunakekelwa kwamehlo ungancoma izinketho zelensi ezifanele kunazo zonke.
Yebo,Amalensi wombono owodwaingalungisa i-astigmatism. I-Astigmatism iyiphutha elijwayelekile lokuqapha kabusha elibangelwa ama-cornea abunjwe ngokungafanele noma ilensi elingaphakathi kweso, okubangela ukufiphala noma umbono osontekile emabanga ahlukahlukene. Ama-lens wombono owodwa angabhekana nempumelelo ebhekise ngempumelelo ama-atigmatism ngokufaka amandla okulungiswa adingekayo ukunxephezela curvature engajwayelekile ye-Optics yeso. Uma kukhulunywa ngokulungisa i-astigmatism, ama-lens wombono owodwa angahle abelwe ngomuthi othile odingekayo ukulungisa iphutha lokuqapha elihambisana nesimo. Lo mbhalo unqunywa ngokuhlolwa kwamehlo okuphelele okwenziwe nguchwepheshe wokunakekelwa kwamehlo, okubandakanya izilinganiso zokuhlola iziqu nokuqondiswa kwe-astigmatism esweni ngalinye. Imiyalo eyodwa yelensi yombono welensi yokulungisa i-astigmatism ivame ukufaka ingxenye yamandla kagesi we-cylindrical ngaphezu kwamandla ama-spherical. Amandla esilinda kubucayi ukulandisa ngezinguquko ku-curvature ye-cornea noma ilensi, uqinisekise ukuthi ukukhanya kuvinjelwe futhi kugxile kahle ku-retina. Ngokufaka lokhu kulungiswa okuqondile kwe-astigmatism ekwakhiweni kwamalensi, amalensi wombono owodwa angahlelela ngempumelelo ukufiphala nokuhlanekezela okuhlangenwe nakho kwabantu nge-astigmatism. Kuhle ukuqaphela ukuthi amalensi wokubona owodwa we-astigmatism ahlukahlukene futhi angahlangabezana nezidingo ezahlukahlukene zombono, kufaka phakathi ibanga, eduze, noma umbono ophakathi. Noma ngabe isetshenziselwa izibuko noma amalensi okuxhumana, la ma-lens alungele abantu bayo yonke iminyaka ene-astigmatism, ngaleyo ndlela bahlangane nezidingo eziningi zokuphila nezidingo ezibukwayo. Uma kunqunywe kahle, amalensi wombono owodwa we-astigmatism anganikeza induduzo nombono. Ngokubhekana nokungahambisani ngesimo samehlo, la malensi anika amandla abantu ukuthi bathuthukise ukugxila, banciphise ukukhathala kwamehlo, futhi bathuthukise ikhwalithi ephelele yokubuka. Lokhu kusiza ukuhlinzeka ngokuhlangenwe nakho okubonakalayo okunethezekile nokwanelisa kwalabo abathembela kuma-lens eyodwa yombono ukulungisa ama-atigmatism. Ngamafuphi, ama-lens wombono owodwa ayakwazi ukulungisa i-astigmatism ngokufaka umuthi owenziwe ngokwezifiso obheka iphutha elithile le-astigmatism elihlotshaniswa ne-astigmatism. Ngokuhlinzeka ngokulungiswa okwenziwe ngokwezifiso, la ma-lens aklanyelwe ukwandisa umbono wabantu abane-astigmatism futhi athuthukise ikhwalithi yombono jikelele.
Isikhathi sePosi: Feb-01-2024