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lilense tse tsoelang pele ke eng?Li boetse li tsejoa e le li-no-line bifocals kapa lilense tsa varifocal.Ho fapana le setso...Bala haholoanyane»
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Leseli le leputsoa ke eng?Bolelele ba maqhubu a khanya e bonahalang ke 380-780NM, 'me khanya e putsoa ke 380-50NM, e leng e 'ngoe ea bolelele bo khuts'oane le matla a phahameng ka ho fetisisa.Leseli le leputsoa le teng hokae?Leseli le leputsoa le teng linthong tse ngata tseo batho ba...Bala haholoanyane»
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1. Ke mang ea loketseng lilense tse tsoelang pele tsa multifocal?E loketse bakeng sa tokiso ea ho fokotseha, ka nako e ts'oanang ho bona hole, majabajaba kapa ka nako e ts'oanang ho bona litlhoko tse fapaneng tsa batho (haholo-holo ho bona litlhoko tsa khomphutha le mohala oa thekeng), ha ua tlameha ho ...Bala haholoanyane»
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Hangata batho ba botsa hore na ba hloka ho roala likhalase tse putsoa tse thibelang mahlo ho sireletsa mahlo a bona ha ba shebile k'homphieutheng, pad kapa selefouno.Na laser ea myopia e ile ea lokisa ka mor'a opereishene e hloka ho roala likhalase tsa anti blue ray ho sireletsa leihlo?Ho araba tsena q...Bala haholoanyane»
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Lilense tse tsoelang pele, tse buang ka lilense tse shebaneng haholo, li sebelisoa haholo Europe le United States, empa li se li tumme Chaena lilemong tse 10 tse fetileng.Ha re shebeng setšoantšo sa likhalase tsa multifocal tse tsoelang pele.Kajeno, ba bangata ...Bala haholoanyane»
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Sekhahla sa botumo ba lifilimi tse tsoelang pele libakeng tse tsoetseng pele tse kang Europe le United States se fetile 70%, 'me lifilimi tse tsoelang pele li etsa karolo ea 30% ea theko ea thekiso, ka thekiso ea selemo le selemo e ka bang limilione tse 500.Leha ho le joalo, lifilimi tse tsoelang pele li ka tlase ho 3% tse tsebahalang ...Bala haholoanyane»
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Lisebelisoa tse tharo tse kholo tsa lilense tsa optical: ke phapang efe e khethehileng le melemo le melemo ea lilense tse tharo tse tummeng tsa optical.Ho kenya likhalase tsa tsebo ea lense, re hlahisitse mofuta oa ts'ebetso ea lense, boleng ba thepa hanyane ...Bala haholoanyane»
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Lense ea tloaelo ea karache e bitsoang sekotoana sa karache, tlhahiso e behiloeng.Lense e hlophisitsoeng ea karache e bua ka sehlahisoa se ke keng sa finyelloa ke phepelo ea likotoana tse teng mme se sebelisetsoa ho fihlela litlhoko tse ikhethang.Lense ea mofuta ona e fapane le lense e tloaelehileng e tloaelehileng, eo ...Bala haholoanyane»
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Lilense tse fetolang mebala li ntse li tsebahala haholo hobane ha li fane ka tšireletso ea UV feela, empa hape li loketse ho apara letsatsi le leng le le leng.Ntlha ea bohlokoa ka ho fetisisa ke ho finyella litlhoko tsa lihlopha tse fapaneng tsa batho, tse kang presbyopia, myopia, leseli le bataletseng joalo-joalo.Kahoo, h...Bala haholoanyane»
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Khetho ea lense e ka nahanoa ho tsoa likarolong tse tharo: lisebelisoa, ts'ebetso le index ea refractive.thepa Lisebelisoa tse tloaelehileng ke: lilense tsa khalase, lilense tsa resin le lilense tsa PC.Bala haholoanyane»
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Ka ntlafatso e tsoelang pele ea litlhoko tsa boleng ba bareki, litlhoko tsa boleng ba batho bakeng sa lilense tsa optical le tsona li ntlafatsoa butle-butle, ka nako e ts'oanang, litlhoko tsa lefats'e bakeng sa lilense tsa optical le tsona li ntse li eketseha ka thata.Mokhoa oa ho khetholla letšoao la boleng ba lona ...Bala haholoanyane»