Hlola i-diopter yeso, khetha amafreyimu ahloswe kahle, abantu abaningi bayoba nemibuzo: izinhlobo eziningi, izinhlobo, ama-lens asebenzayo, engifanele?Ingabe “Ngenza okwami” , “ukulandela inhliziyo yami” , noma “Usesho Lwe-Google” ?
I-brand ye-Lens, ifilimu ehlukile, inkomba ye-refractive, imisebenzi ehlukene, imiphumela ehlukile yokubona nezinye izici, kuzoba nenqwaba noma amakhulu ezinhlobo zamalensi, abantu bayangabaza.
Manje, ake sikhulume kafushane ngamalensi okukhanya asetshenziswa kakhulu.Ngokombono wohlelo lokusebenza, kukhona amalensi okukhanya okukodwa namalensi asebenzayo.
Ilensi Eyodwa: Ilensi Eyodwa isho ukuthi kunesikhungo esisodwa kuphela se-optical kuLens, isikhungo sokubona senziwe ukuze sihambisane nesifunda somfundi wakho (yingakho ibanga lomfundi likalwa) .
amalensi okukhanya okukodwa ahlukaniswe cishe aba yindilinga, aspherical, biaspherical and free-form Lens, izindawo ezikhululekile okwamanje zihamba phambili ngokunciphisa ukuchezuka nokuhlanekezela, kodwa futhi abiza kancane kunamanye amalensi.Lapho ukhetha, kufanele ngokusho kokukhanya kweso kanye nezinga le-astigmatism okufanele ukhethe.
I-Single Lens iyisinqumo esiyisisekelo nesilula salabo abanamandla anele okulungisa, okungukuthi, labo abangenayo i-Presbyopia.Kodwa kubantu abaqala ukuthuthukisa i-PRESBYOPIA, amalensi e-monocular angasetshenziswa kuphela ebangeni elimisiwe, noma ebangeni (ukushayela) , noma kude (kumakhompyutha wedeskithophu) , noma ebangeni eliseduze (ukufunda) , hhayi kokubili.Senzenjani-ke manje?Isixazululo esisodwa: ingilazi ebangeni elikude, kanti enye: izibuko ze-multifocal eziqhubekayo.
Amalensi asebenzayo: kufaka phakathi ama-lens alwa nokukhathala, amalensi e-bifocal, amalensi amaningi agxile kakhulu, amalensi ezingane anciphisa ukukhula kweMyopia (amalensi e-peripheral defocus, bifocal + prism lens) nokunye.
Amalensi asebenzayo anokuningi, indlela yokukhetha, enye iwukubona isidingo sethu sezibuko, ezimbili ziyinhloso yezibuko.Thatha amalensi amaningi asebenza ngokuqhubekayo, okuyizibuko ezisebenzayo eziklanyelwe ukuhlangabezana nezidingo zabantu ababona kude nababona eduze.Isibonelo, uthisha angase adinge ukuthi abheke ebhodini ngesikhathi ekhuluma nabafundi ekilasini (ebheka kude) kanye nohlelo lwesifundo (ebheka ukusetshenziswa okuseduze) .Noma umhlangano womnyango ungase udinge ukubheka amaslayidi kanye nekhompiyutha, futhi udinga ukunaka okushiwo ababambiqhaza, izibuko ezigxilile eziningi eziqhubekayo endimeni enkulu.
Kungashiwo ukuthi izibuko eziqhubekayo zingaxazulula inkinga yokukwazi ukubona ngokucacile emabangeni ahlukene, futhi akufani ne-Lens eyodwa-light ngokubukeka, ukugcina amehlo ethu "efriziwe" , kodwa i-Optometry namalensi afanayo kukhona. akulula njengelensi eyodwa.
1. Kala ngokunembile ukukhanya okukude.
2, ngokuya ngeminyaka, umkhuba webanga lokusebenza eliseduze, isikhundla samehlo, ukusabela kokulungiswa, ukulungiswa kwesihlobo esihle nokubi, njll.Futhi ukhethe Isiteshi esifanele (okungukuthi, ubude bendawo yoshintsho phakathi kwezindawo ezikude neziseduze zokukhanya kuLens) ukuze uhlangabezane nezidingo zomsebenzi wansuku zonke.
3. Ukulungiswa kozimele komuntu siqu.Ngokusho kokuphakama kwebhuloho lekhala lomuntu ngamunye, ukuphakama kwezindlebe nokunye kuhlaka lwesikole, ukuze izibuko zigqoke zikhululekile.
4. Ukulinganisa ibanga lomfundi.Ibanga eliphakathi kwamehlo aseduze nakude, ubude bomfundi ku-Vertical Direction yefreyimu, kanye nomaki kuhlaka olukhethiwe kuzolinganiswa.Ukuze uthole umphumela obonakalayo owengeziwe futhi unciphise ukuphazamiseka kwendawo ye-Aberration ukuze ubone lapho ugqoke amalensi aqhubekayo, izindawo ezikude neziseduze zokukhanya zisendaweni ehambisanayo yomfundi.
5. Kudingeka izilinganiso ezengeziwe ukuze uklame amalensi athuthukayo anethezeke kakhudlwana: Ibanga leso (ibanga ukusuka phezulu kwekhoneni ukuya kuLens), ukugoba kohlaka, i-engeli yokutsheka yohlaka, umumo nosayizi wohlaka, njll.Ngokuvumelana nenani lokunyakaza kwekhanda nokunyakaza kwamehlo, sikhetha uhlobo olufanele, olunganciphisa ithonya lendawo yokuphambuka ezinhlangothini zombili zeLens, kufinyeze isikhathi sokuzivumelanisa nezimo, futhi kwenze ukugqoka kube ntofontofo.
Ngakho-ke, ukukhetha kwe-Lens akufanele kugxile kuphela kumkhiqizo noma intengo, hhayi i-lens ebiza kakhulu engcono, khetha ngokungaboni.Odokotela bamehlo batusa ukuthi ukhethe amalensi ngokuya ngezimo zabo, izidingo zamehlo kanye nezeluleko zodokotela bamehlo zokukhetha i-lens efanelekile yabo.
Isikhathi sokuthumela: Jul-28-2021