Iilensi eziqhubela phambili, ezibhekiselele kwiilensi ezigxile kwizinto ezininzi, zinxitywa kakhulu eYurophu nase-United States, kodwa ziye zaduma eTshayina kule minyaka ili-10 idlulileyo.Makhe sijonge umfanekiso weeglasi ezininzi eziqhubekayo.
Kule mihla, abantu abaninzi baye banxiba iiglasi ze-multifocal eziqhubekayo, kwaye iiglasi eziqhubekayo ziye zaba yinto eqhelekileyo.
Nangona kunjalo, ayinguye wonke umntu onokufumana iiglasi eziqhubekayo ezifanelekileyo.Abantu abaninzi ngexesha lokuqala, abafuni ukufanisa, isizathu asikho ngaphezu kokugqoka ukungakhululeki, ukuchitha imali eninzi, kodwa abazange bafikelele kwizinto abazilindeleyo.
Uyilo lweelensi ezininzi ezigxininisiweyo eziqhubekayo zinokuhlelwa ngokwenkqubela yangaphakathi kunye nenkqubela yangaphandle.Itekhnoloji kunye namava okufakwa kwelensi okuqhubekayo kuya kuchaphazela amava okunxiba.Ke ngoko, ukuqonda uyilo lweelensi kunokukunceda ufumane iiglasi ezikhululekileyo.
Ngaphakathi kwimiba eqhubekayo nangaphandle
Ilensi eqhubekayo yangaphandle:Uyilo oluthe ngcembe lukumhlaba ongaphandle welensi, kwaye ummiselo ucutshungulwa kwindawo engaphakathi yelensi.
Uyilo oluqhubela phambili lwesiqwenga esiqhubekayo sangaphandle esilungisiweyo sineziphene ezicacileyo, ezingenakho ukulungelelaniswa ngokweemfuno zomntu ngamnye zeso, kunye noyilo kunye nokulungiswa kwendabuko.
Ilensi eqhubekayo yangaphakathi:Umphezulu ohamba kancinci ubekwe kwindawo engaphakathi, kwaye imbonakalo ethe nkqo ibekwe kwindawo engaphakathi.
Kuba umphezulu ongasemva unokuyilwa kwaye uqwalaselwe ngokuguquguqukayo, ukukhanya okuthe chu kunye nokukhanya okuchazwe ngugqirha kunokuphuculwa ngokomyalelo womntu ngamnye, ukunxiba iiparamitha kunye nemikhwa yokubona yobuqu, ukuze kuphuculwe amava abonakalayo omntu onxibileyo.
Ngaphakathi kwinkqubela phambili kunye nangaphandle umahluko oqhubekayo
Ububanzi bebala elibonakalayo: Ibala elingaphakathi eliqhubelekayo libanzi
Ngenxa yokuba umphezulu oqhubela phambili womgangatho wangaphakathi usondele kwi-eyeball, ukunxiba le lens kunokunyusa i-Angle ebonakalayo yomnini, ukuphucula ububanzi bendawo yokujonga ephakathi kunye nokusetyenziswa okubonakalayo kwendawo ejikelezileyo, kunye nesiphumo somfanekiso sinokwenyani kwaye sicacile. .Xa kuthelekiswa nenkqubela phambili yendawo yangaphandle, indawo ebonakalayo iyanda malunga ne-35%.
Ukuqina okukufutshane: ngaphakathi ukunxiba kancinci kancinci
Inkqubela yangaphakathi ithatha itekhnoloji ekhethekileyo, eyenza ukuba i-lens deformation ibe ncinane kunomgangatho wangaphandle, kwaye indawo ejikelezayo isondele kumacala omabini e-lens, kwaye indawo yokuguqulwa kokuphazamiseka okubonakalayo incinci, ngoko ke induduzo yokunxiba iphuculwe kakhulu. kwaye ukuziqhelanisa kukhawuleza.
Iimfuno ze-backspin: Nganye ineenzuzo zayo
Kubathengi abanesakhono sokubuyela umva kwamehlo, ukwamkelwa ngokuthe ngcembe kwexabiso eliphantsi le-ADD okanye itshaneli elide yeyona nto ilungileyo.Kubathengi abanesakhono sokubuyela umva, ixabiso eliphezulu le-ADD okanye ukusetyenziswa kwejelo elifutshane oluqhubela phambili lwenkqubela phambili yangaphandle.
Iimfuno ezilungiselelweyo: Inkqubela phambili yangaphakathi inokuba uyilo lomntu
Iiparamitha zelensi eqhubelekayo yangaphakathi zinokulungiswa ngokubanzi ngokweemfuno zesidanga samehlo kunye nomkhwa wokusebenzisa, okuthetha ukuba iiglasi ezilungiselelwe abathengi zihambelana kakhulu neemfuno zokunxiba zabathengi.
Intsingiselo enkulu eshushu: kancinci kancinci iyahlangabezana nemfuno
Kule mihla, ngenxa yokuphuculwa komgangatho wobomi babantu, umcimbi wokudinwa kwamehlo ubalulekile, kwaye i-presbyopia ibonisa umkhwa wobudala obuncinci.Ngoko ke, phantsi kwemeko yokuba i-cyclotral force ye-eye muscle yanelisekile, ukuhamba kwangaphakathi kukhetho oluphambili lokuhlangabezana neemfuno zabathengi kumbono obanzi kunye nokuphucula ukwaneliseka.
Isizathu sokungakhululeki ekunxibeni isiqwenga esiqhubekayo
Ekunxityweni kwemihla ngemihla, kukwakho ezinye izizathu zokungakhululeki kwelensi eqhubekayo ngolu hlobo lulandelayo
1. Ibala lelensi
Iiglasi ekusebenziseni imihla ngemihla ingqalelo encinci iya kungcoliswa ngamabala othuli, ichaphazela umbono;Iilensi ezikrweliweyo zinokuphazamisana nokuhamba kokukhanya, okukhokelela ekuboneni luzizi kunye nokungakhululeki.
Icebiso: Iiglasi kufuneka zicocwe xa zisetyenziswa.Hlamba i-lens grime ngamanzi, uze uyisule ngobunono ngelaphu elicocekileyo nelithambileyo lokucoca iglasi yamehlo ukunqanda imikrwelo.Ukuba ilensi inemikrwelo emininzi, kufuneka itshintshwe ngexesha.
2. Ukuguqulwa kwesakhelo sesibuko
Iiglasi ezisetyenziswe ixesha elide ngokuqinisekileyo ziya kucudiswa, zitsalwe, zigqwetheke kunye nokuguqulwa kwesakhelo.Ukuba i-optical center ye-lens ayikwazi ukubhekisa ngqo kumfundi, ukutenxa kunokubangela umonakalo kwiliso kunye nokunciphisa ukuthuthuzela okubonakalayo.
Icebiso: Iiglasi akufanele zifakwe epokothweni okanye ebhegini ngokuthanda kwakho, kodwa mazigcinwe kwibhokisi yesipili kwaye zigcinwe kakuhle.Ukuba kufunyaniswe ukuba ukuphazamiseka kwesakhelo sesibuko akukwazi "ukwenza", kuyimfuneko ukucela iingcali ukuba zilungelelanise kwaye zigcine ngexesha.
3. Ukudibanisa akufanelekanga
Ukongeza kwinqanaba le-myopia kunye ne-presbyopia, ukusetyenziswa kwemihla ngemihla emva kokunxiba kufuneka kuthathelwe ingqalelo.Iqondo lobuchwephesha bomvavanyi kunye nomgangatho welensi kufuneka ube phezulu kakhulu.Ukufakwa ngokungafanelekanga komvavanyi kulula ukubangela ukungonwabi.
Ingcebiso: Qiniseka ukuba ukhetha isibhedlele samehlo esiqhelekileyo, esiqeqeshiweyo okanye ugqirha wamehlo, ngugqirha wamehlo oqeqeshiweyo.
Ixesha lokuposa: Oct-17-2022