Ngokutsho koqikelelo loMbutho wezeMpilo weHlabathi (i-WHO), inani labantu abaphethwe yi-myopiaenkulu kakhuluPhakathi kwabantu abanamehlo asekwempilo, kwayeibefikelelaedI-2.6 yezigidigidi ngonyaka wama-2020. I-Mypia iba yingxaki enkulu yehlabathi, ngakumbie-Asiya. Ireyithi ye-myopia e-China i-47.1%, phantse inqaku lenani elipheleleyo.Kuthetha enyeKubo bonke abantu ababini banomdla.
I-Myopia Inqanaba kumazwe ahlukeneyo
Kule mihla,ngeukunyuka okukhulu kwenqanaba le-myopia, umyinge wendinxibeIiglasi ziyanda kunyaka wonke.Njengomnye wemyopicizigulana, have wenaihlawule ingqalelo kwintosloo nto deitataneUmgangatho we-lens xa ucingailisonxiba umsebenzi kunye ne-lens?
Masifunde intongokungenisat malunga iI-lens ye-lens kunye nesalathiso sokuphendula.
Ilensi elungileyo ifuna ukufana,Ukudlulisakunye nokucaca. TEyona-lela ixhaphakileyo namhlanje sisiphumo seminyaka yokuhlola.
| Ukuphuhliswa kwezixhobo ze-lens Uninzi lweelensi zokuqala zenziwa ngesandla ngezinto zendalo ezinjenge-quartz kunye nekristale. Ngokuphuhliswa kwemveliso yeglasi kunye netekhnoloji yezamashishini, izixhobo zendalo zitshintshwa ngokutshintshwa yiglasi ye-optical eyaqala ukubonelela ngemisebenzi emininzi. Ukusukela ngo-1960 ukuya kuthi ga kwiminyaka yoo-1980, kwenziwa izinto zepetroleum, zenziwe i-petroleum, ithathe indawo yeglasi yepropathi yayo, ikhuselekile kwaye iyona iphambili kwi-lenses ephambili kude kube ngoku. |
Njengoko ezona zixhobo zithandwayo zentengiso, izixhobo zokuphumla zimelwe ikakhulu yi-CR-39 resin ephuhliswe yi-PPG, uMnu Re Reden uphuhlisiwe nguMitsi,kwayeI-KR Rein iphuhliswe yi-Koc, Korea, njl.
Izixhobo ze-lens zimisela isalathiso sokuqaqamba kwelensi. I-Lens Refleive Index ngumyinge wesantya sokukhanya kokukhanya kwi-vacuum yokukhanya kwesantya se-lensi, sibonisa ubuchule bokukhawuleza kweelensi. Ngokubanzi, ukuphakama kwesalathiso se-lens yelensi, i-lens ilensi.
Ngoku,Indalo iphelainesalathiso sesalathiso se-1.50, 1.53, 1.56, 1.67, 1.67, 1.74 kunye nezinyeIsalathiso seiilensi. Ngokwezinto ezibonakalayo, sigcine intsebenziswano esondeleyo nge-PPG ye-United States kunye neMitsui Chemical ChemicalnjengoEzinye iinkampani ezibukhali zinezinto eziphucukileyo.
CR-39 Izixhobo ezifungiweyo ezithengiweyo kwi-PPG, e-USA, isetyenziselwa ukwenza i-Index ye-Recoff 1.50 lens.Ibalwe ngakumbi kwimarike bI-ECE ye-ABE ye-Abbe ePhezulu ye-Abbe, iNtsebenzo ebalaseleyo, intsebenzo yokhuselekokwayeindleko ezininzi.
I-1.53 yelensi yesalathiso ye-1.53 isuselwa kwimpahla ekhethekileyo, i-trivex, ivela kwi-ppg e-US. Izixhobo ze-trivex lens zinefuthe elikhulu kakhulu. Kuba zikhanya ngakumbi kuneilensi ezisemgangathweni, iilensi ze-trivex zezikakuhle kakhuluUkukhetha iliso labantwana, iliso elingenamsebenzi, amagxa ezemidlalo, iliso lemidlalo, kunye ne-Atbelaary eyear.
NeUphuhliso Of iiglasi, "iilensi", njengoko i-fikimu ephambili yeeglasi, ihlala isebenza kwaye iphucule kunye nokutshintsha kwamaxesha.IndaloI-Optical 1.60, 1.67, 1.74phezuluisalathisoI-lens ye-lens ye-lens yenziwa ngoluhlu lwe-MR yeMitsui Chemical. Mnu Crieszikumgangatho ophezulu kunye nezixhobo eziphambili, kunye nesalathiso esiphakamileyo se-Reflective, inombolo ye-ABBE ephezulu, isimo esithile esiphezulu, ukumelana nefuthe eliphezulu kunye nezinye izibonelelo.
Ukuphuculwa okuqhubekayo kwezinto ze-lensR & dkunye netekhnolojikhuthaza iImveliso yeLensisI-induvation. Izixhobo ze-lens eziluhlazachongauzinzoyomgangatho, Ukudluliselwa, ukucaciswa kunye nempembelelo yokubonakalayo.
IndaloI-Optical ibikufanelwe kumgaqo-nkqubo wentsebenziswano yokuphumelela iphumelele kunye nokuphumelela kolunye. ThinaMamela ilizwi labathengi,yaziumthengis'Iimfuno, nikela ingqalelo kwintengisoutyekelo, njengeukwenza umbono ocacileyo.