I-lenses yinto ebaluleke kakhulu ekuboneni umbono kwaye ize ngeendlela ezahlukeneyo ngokuxhomekeke kwiimfuno ezithile zobuthathaka. Ezimbini zeyona len isetyenziswayo isetyenziswayo ziilensi zombono kunye neelensi ze-biifocal. Ngelixa bobabini basebenza ekulungiseleleni impatho-nkqubela, bayilelwe iinjongo ezahlukeneyo kunye nabantu. Ukuqonda umahluko phakathi kwezi zenzo kubalulekile ekwenzeni ukhetho olunolwazi, ngakumbi njengoko umbono wabantu ufuna utshintsho kunye nobudala kunye neendlela zokuphila. Kolu hlalutyo oluneenkcukacha, siya kuphonononga umahluko phakathiumbono omnyekwayeI-Bifocal Lenses, kubandakanya izicelo zabo, izibonelelo, kunye nendlela abajonga ngayo iingxaki ezithile zombono.
1. I-lens enye yombono: ziyintoni?
I-lenses yombono ye-lelses yeyona ndlela ilula kwaye isetyenziswa kakhulu i-lens kwiiglasi zamehlo. Njengoko igama libonisa, ezi lelo zenzelwe ukulungisa umbono kubude obujolise kuyo. Oku kuthetha ukuba banamandla afanayo ngokupheleleyo kumphezulu welensi, bebenza balungele ukujongana nohlobo olunye lwempazamo-nokubaluleka (i-mypia) okanye i-furpia).
Ezona mpawu:
Amandla afanayo:Ilensi inamazwe angaguqukiyo ahlukileyo, egxile ukukhanya kwindawo enye kwi-retina. Oku kuvumela umbono ocacileyo kumgama omnye.
Ukusebenza ngokulula:Kuba umbono ongatshatanga ulungele uhlobo olunye kuphela lwengxaki yombono, bathe ngqo kuyilo kunye nemveliso.
Ye-myopia (i-nears):Abo banobuqili banobunzima bokubona izinto ezikude ngokucacileyo. I-lenses yombono ye-norsed ngokusasazeka ngokusasaza ukukhanya ngaphambi kokuba ibethe i-retina, incedisa izinto ezikude zivele zibukhali.
Ye-hyperopia (i-farks):Abantu abanoxinzelelo bazabalazela ukubona izinto ezikufutshane ngokucacileyo. I-lenses yombono ye-hyperopia igxile kakhulu kwi-retina, ekwandiseni umbono kufutshane.
Sebenzisa iimeko:
I-lensey yombono enye inokusetyenziselwa abantu abane-atightismatism, imeko apho i-cenea yeliso ifakwe ngokungahambelaniyo, ekhokelela kumbono ogqwethekileyo kuwo wonke umgama. I-lenses eyodwa yombono ebizwa ngokuba yi-Touric Lenses yenzelwe ukuba ilungiswe i-astigmatism.
IINGXAKI ZEEMPAWU ZOKUXELISA:
Uyilo olulula kunye nemveliso: Kungenxa yokuba ezi zelensi zenzelwe ukulungisa umbono kumgama omnye kuphela, zilula kwaye zingabizi kakhulu ukuvelisa iilensi ze-Mulkocial.
Uluhlu olubanzi lwezicelo:I-lensey yombono enye iguquguqukayo kwaye ilungele abantu bayo yonke iminyaka yohlobo olunye lwempazamo yokuphikisa.
Ixabiso eliphantsi: Ngokubanzi, iilensi zombono ezingenalo zifikeleleke ngakumbi kune-biifocal okanye i-lenses eqhubekayo.
Ukulungelelaniswa ngokulula:Ngenxa yokuba zonke iilensi ziyinto efanayo kumandla ayo okulungisa, ababuthi belenses engatshatanga baziqhelanise ngokulula ngaphandle kokufumana nayiphi na imbambano okanye ukungalunganga.
Uluhlu lokugxila olulinganiselweyo:I-lensey yombono ichanekile kuphela uhlobo lwengxaki yombono (kufutshane okanye kude), enokungabi namandla abantu abaphuhlisayo basePorgoopia okanye ezinye iimeko ezinxulumene nobudala ezichaphazela zombini umbono osondeleyo nosekude.
Iinguqu rhoqo:Kubantu abafuna ukulungiswa kwemisebenzi yomgama osondeleyo kunye nemisebenzi evalelweyo (umz, ukufunda nokuqhuba), iilensi zombono enye zinokunyanzelisa ukutshintshela phakathi kweeglasi ezahlukeneyo, ezinokubakho ngokwaneleyo.
UKUHLAZIYWA KWEEMPAWU ZOKUXELISA:
Uluhlu lokugxininisa kugxininiso: I-lenses eyodwa yombono ilungisa uhlobo olunye lwengxaki yombono (kufutshane okanye kude), ezinokubangela ukuba abantu abaphuhlisayo basePrestoopia okanye ezinye iimeko ezinxulumene nobudala ezichaphazela zombini umbono osondeleyo nobona mbono.
Utshintsho lwamehlo ama ngamehlo: kubantu abafuna ukulungiswa kwemisebenzi yomgama kunye nemisebenzi evaliweyo (umz, ukufunda nokuqhuba), i-lenses enye yombono inokuthi ifune ukutshintshela phakathi kweeglasi ezahlukeneyo, ezinokuba zinokukhalazeka.
I-2. Iilensi ze-Bifocal: Zintoni?
Iilensi ze-Bifocal zenzelwe ngokukodwa abantu abafuna ukulungiswa koombono omabini kunye nombono kufutshane. Ezi lens zahlulahlulwe zangamacandelo amabini ahlukileyo: Inxalenye enye kukubona izinto ezikude ngokucacileyo, ngelixa enye yeyokubona izinto ezisondeleyo, ezinjenge xa ufunda. Ii-biifocals zaye zadalwa ngokwesiko ukujongana nedilesi yePorbyOpia, imeko apho iliso liphulukene nako ukugxila kwizinto ezisondeleyo zabantu.
Ezona mpawu:
Imigqaliselo emibini kwilensi enye:Iilensi ze-Bifocal Iilensi zinamagunya amabini ahlukeneyo kwilensi enye, edla ngokwahlukaniswe ngumgca obonakalayo. Inxalenye ephezulu yelensi isetyenziselwa umbono womgama, ngelixa icandelo eliphantsi lisetyenziselwa ukufunda okanye eminye imisebenzi kufutshane.
Umgca owahlukileyo:Ii-biifocal zemveli zinomgca okanye i-curve eyahlulahlula imimandla emibini yombono, esenza kube lula ukutshintshela phakathi komgama kunye nemigqaliselo yokufunda ngokuhambisa amehlo phezulu okanye ezantsi.
EPresbyopia:Esona sizathu siqhelekileyo abantu banxiba i-lenses ye-bifocal yeyokulungisa iPrestogoopia. Le meko inxulumene nobudala idla ngokuqala ukuchaphazela abantu abangama-40s kunye ne-50s, besenza ukuba kube nzima kubo ukugxila kwizinto ezikufutshane, ezinjenge xa kufunda okanye ukusebenzisa i-smartphone.
Ukulungiswa ngaxeshanye:Ii-biifocal zilungele abantu abafuna ukutshintshela rhoqo phakathi kokujonga izinto ezikude (njengokuqhuba okanye ukubukela imisebenzi) kunye nokufunda okanye ukusebenzisa ikhompyuter). Uyilo olune-intanethi lubavumela ukuba benze oku ngaphandle kokutshintsha iiglasi.
Sebenzisa iimeko:
IINGXAKI ZOKUGQIBELA ZE-BIFOCAL:
Isisombululo esinezilwanyana ezimbini:Ii-bifocals zisusa isidingo sokuthwala izibini ezininzi zeeglasi. Ngokudibanisa umgama kunye nokujonga umbono kwisibini esinye, banikezela ngesisombululo esisebenzayo kwabo bakwiPressopia okanye abanye abafuna umbono ogxile kwi-Muremiopia.
Umsebenzi obonakalayo ophuculweyo:Kubantu abathile abafuna umbono ocacileyo kuwo omabini umgama kunye noluhlu olusondeleyo, iibhasi zibonelela ngokuphuculwa kwangoko kwemihla ngemihla ngaphandle kwe-hassle yokutshintsha iiglasi.
Xa kuthelekiswa neendleko zokuqhubela phambili: Ngelixa i-lenses ye-bifucal ibiza kakhulu kune-lenses engatshatanga, ifikeleleke ngakumbi kuneilensi eqhubekayo, ezibonelela ngotshintsho oluthe kratya phakathi kwemimandla eyahlukeneyo.
ICandelo elibonakalayo: Enye yezona zinto zibonakalayo zeelebhu ze-biifocal ngumgca obonakalayo owahlulahlula iindawo ezimbini zombono. Abanye abasebenzisi bafumana le nto i-aesthetivey, kwaye inokwenza isiphumo "segxuso" xa sitshintshela phakathi kweendawo ezimbini.
Umboniso ophakathi:Ngokungafaniyo neelensi eziqhubekayo, ii-bifucals zinemimandla emibini yomyalelo kunye nekufuphi. Oku kushiya umsantsa wombono ophakathi, njengokujonga isikrini sekhompyuter, esinokuba yingxaki kwimisebenzi ethile.
Ixesha lohlengahlengiso:Abanye abasebenzisi banokuthatha ixesha lokuhlengahlengisa utshintsho olukhawulezileyo phakathi kwemimandla egxile kuyo, ngakumbi xa utshintshile phakathi komgama kwaye kufutshane nombono rhoqo.
Ukunqongophala kwee-lenses ze-Bifocal:
ICandelo eliSebenzayo: Enye yezona zinto zibonakalayo ze-lenses ze-biifocal ngumgca obonakalayo owahlulahlulahlula iindawo ezimbini zombono. Abanye abasebenzisi bafumana le nto i-aesthetivey, kwaye inokwenza isiphumo "segxuso" xa sitshintshela phakathi kweendawo ezimbini.
②.Imifanekiso ephakathi yomboniso: Ngokungafaniyo neelensi eziqhubekayo, ii-bifucals zinemimandla emibini kagqirha kuphela kunye nekufuphi. Oku kushiya umsantsa wombono ophakathi, njengokujonga isikrini sekhompyuter, esinokuba yingxaki kwimisebenzi ethile.
IXesha lokuSebenza: Abanye abasebenzisi banokuthatha ixesha lokuhlengahlengisa utshintsho oluphambili phakathi kwemimandla emibini, ngakumbi xa utshintshile phakathi komgama kwaye kufutshane nombono.
3. Ukuthelekisa okuthe kratya phakathi kombono omnye kunye neelensi zebiigocal
Ukuqonda ngcono umahluko ophambili phakathi kombono omnye kunye neelensi zebibula, masiphule ukungafani kwabo ngokwemigaqo yoyilo, umsebenzi, kunye namava abasebenzisi.
4. Ufanele ukhethe nini umbono omnye okanye iilensi ze-biigocal?
Ukukhetha phakathi kombono omnye kunye neelensi ze-biifocal ikakhulu kuxhomekeke kwimbono yakho ethile. Nazi ezinye iimeko apho uhlobo ngalunye lusenokuba lukhetho olungcono:
Ukukhetha i-lenses yombono enye:
Abantu abanodidi olufanelekileyo
Abantu Abantu abangasezantsi: Abantu abancinci ngokubanzi bafuna kuphela ukulungiswa ngohlobo olunye lwento yokujonga umbono. Kuba bancinci ekunokwenzeka ukuba bamave amava aseTestapia, iilensi zombono omnye zinika isisombululo esilula nesineendleko.
Ukukhetha iilensi ze-Bifocal:
UPressopia onxulumene noko: Ukuba ufumana ubunzima obugxile kwizinto ezisondeleyo ngenxa yePressopia kodwa isafuna ukulungiswa komgama, iilensi ze-bifucal zilukhetho olusebenzayo.
②. Isitshisi esijongeka phakathi kombondela wokusondela kunye nobona mntu ngamnye ofuna ukutshintsha rhoqo phakathi kokujonga izinto ezikude nokufunda okanye ukwenza imisebenzi ngokulula kunye nokusebenza kwilensi enye.
5. Ukuqukumbela
Isishwankathelo, iilensi zombono enye kunye neelensi ze-bifucal zenzelwe ukuhlangabezana neemfuno zombono ezahlukeneyo. I-lensey yombono enye ichanile kwaye ilungele abantu abancinci okanye abo bafuna ukulungisa uhlobo olunye lomphumo wombono, njengokungathandekiyo okanye ukubaluleka. I-Bifocal Lenses, kwelinye icala, zilungiselelwe abantu abadala abane-Pressovoopia abafuna ukulungiswa kweso sisombululo sisondele kwaye bade banike isisombululo esifanelekileyo esibini.
Ukukhetha iilensi ezifanelekileyo linyathelo elibalulekileyo ekuqinisekiseni umbono olungileyo wezempilo kunye nentuthuzelo yemihla ngemihla. Ukubonisana ne-optometrist okanye i-overe ye-Of Treance icetyiswa kakhulu ukufumanisa ukuba loluphi uhlobo lweelensi ezifanelekileyo ezifanelekileyo iimfuno zakho.
I-Post Time: Oct-16 ukuya ku-2004