yini ilensi eqhubekayo?
Amalensi aqhubekayo awuhlobo lwamalensi engilazi yamehlo ahlinzeka ngokuqhubekayo okushelelayo nokungenamthungo kwamandla amaningana okulungisa umbono ngaphakathi kwelensi eyodwa.Aziwa nangokuthi ama-no-line bifocals noma ama-varifocal lens.
Ngokungafani namalensi e-bifocal endabuko anomugqa obonakalayo ohlukanisa ibanga nezindawo eziseduze zokulungisa umbono, amalensi aqhubekayo anoshintsho oluhamba kancane phakathi kwezifunda zamandla ahlukene.Le ndawo yoshintsho ivumela abagqokile ukuthi babone ngokucacile kuwo wonke amabanga ngaphandle kokushintsha okungazelelwe kokulungiswa okubonakalayo.
Amalensi aqhubekayo angenziwa ngendlela oyifisayo ukuze ahlangabezane nezidingo ezithile zomuntu ngamunye.Idizayini ibheka ibanga phakathi kwamehlo, i-engeli yohlaka, kanye nezidingo zencwadi kadokotela zomuntu ogqokile.Amalensi enziwa kusetshenziswa ubuchwepheshe bekhompuyutha ukuze kuqinisekiswe ukunemba nokunemba ezindaweni eziqhubekayo.
Nokho, kungase kuthathe isikhathi ukujwayela amalensi aqhubekayo ngenxa yamandla ahlukene okulungisa, futhi abanye abantu bangase babe nokuhlanekezela noma ukufiphala kwe-peripheral kuze kube yilapho bewajwayela.Ukwengeza, amalensi aqhubekayo angabiza kakhulu kunamalensi endabuko e-bifocal noma eyodwa.
Inzuzo yelensi eqhubekayo
Inzuzo eyinhloko yamalensi aqhubekayo ukuthi anikeza isixazululo esingenamthungo nesemvelo sokulungisa umbono kubantu abane-presbyopia (isimo lapho ikhono leso lokugxila ezintweni eziseduze liyancipha kancane kancane ngokuya ngeminyaka).
Nazi ezinye izinzuzo zamalensi aqhubekayo:
Ukubona kahle kuwo wonke amabanga: Amalensi aqhubekayo ahlinzeka ngoshintsho olubushelelezi nolungaphazamiseki phakathi kwebanga, okumaphakathi, nokuseduze.Lokhu kusho ukuthi abagqoki akudingeki bashintshe phakathi kwamapheya amaningi ezingilazi, okungase kube nzima futhi kungenzeki.
Awukho umugqa obonakalayo: Ngokungafani namalensi e-bifocal endabuko, amalensi aqhubekayo awanawo umugqa obonakalayo ohlukanisa amandla ahlukene okulungisa.Lokhu kubenza bathandeke kakhulu futhi kuqede ukucwaswa ngezinye izikhathi okuhlotshaniswa nezibuko ze-bifocal.
Okungenziwa ngendlela oyifisayo: Amalensi aqhubekayo angenziwa ngendlela oyifisayo ukuze afanele izidingo zomuntu ngamunye.Idizayini ingalungiselelwa isitayela nosayizi wozimele, futhi incwadi kadokotela ingalungiselelwa izidingo zomuntu ezibonakalayo.
Ukubona okuzungezile okuthuthukisiwe: Amalensi aqhubekayo anikeza inkambu yokubuka ebanzi kunamalensi e-bifocal endabuko, angasiza ngemisebenzi efana nokushayela nezemidlalo.
Sekukonke, ama-lens aqhubekayo ayinketho ethandwayo kubantu abadinga ukulungiswa kombono we-multifocal ngoba anikeza umbono ocacile, wemvelo kuwo wonke amabanga futhi aqede isidingo samapheya amaningi wezibuko.
Hlobo luni lwabantu amalensi aqhubekayo alungele
Amalensi aqhubekayo afanele abantu abane-presbyopia, okuyisimo esivamile esihlobene neminyaka esenza kube nzima ukugxila ezintweni eziseduze.I-Presbyopia ivame ukuvela kubantu abangaphezu kweminyaka engama-40 futhi ibangelwa ukuqina kancane kancane kwelensi yeso.
Amalensi aqhubekayo nawo afanele abantu abadinga ukulungiswa ukuze babone eduze nakude, njengoba ehlinzeka ngoshintsho olungenamthungo phakathi kwamandla ahlukene amalensi.Lokhu kubenza babe ukukhetha okuhle kubantu abanezinhlobonhlobo zezidingo zokubona, njengalabo abasebenza kumakhompyutha isikhathi eside futhi abadinga ukubona izinto ezikude.
Kubalulekile ukuqaphela ukuthi amalensi aqhubekayo angase angafaneli wonke umuntu, ikakhulukazi labo abanezimo ezithile zamehlo noma abangaboni kahle.Kubalulekile ukubonisana nochwepheshe wokunakekelwa kwamehlo ukuze uthole ukuthi ama-lens aqhubekayo ayinketho enhle yezidingo zakho ezithile.
Isikhathi sokuthumela: Feb-22-2023