Abathengi abaningi bayadideka lapho bethenga izibuko zamehlo.Ngokuvamile bakhetha amafreyimu ngokuya ngokuthanda kwabo, futhi ngokuvamile bacabangela ukuthi amafreyimu akhululekile yini nokuthi intengo inengqondo yini.Kodwa ukukhethwa kwamalensi kuyadida: yimuphi umkhiqizo omuhle?Imuphi umsebenzi welensi ofanele wena?Imaphi amalensi ekhwalithi ephezulu?Uma ubhekene nezinhlobonhlobo zamalensi, ungayikhetha kanjani evumelana nawe?
Izisebenzi zasehhovisi zikhetha kanjani?
Izisebenzi zasehhovisi zivame ukudinga ukubhekana nekhompyutha isikhathi eside, ngisho nokushintshashintsha phakathi kwemikhiqizo ehlukahlukene ye-elekthronikhi.Kulula ukubangela ukusetshenziswa ngokweqile kwamehlo, ukwandisa ukukhathala okubukwayo.Ngokuhamba kwesikhathi, ukoma kwamehlo, i-eye astringency, ukungaboni kahle kanye nezinye izimpawu ziye zavela, ezithinta ukusebenza kahle komsebenzi futhi zijwayele "imiphumela emibi" ehlukahlukene: ubuhlungu behlombe nentamo, ikhanda elibuhlungu, amehlo omile njalonjalo.
Ngakho-ke, kubasebenzi basehhovisi abasebenza amahora amaningi ngemikhiqizo ye-elekthronikhi, ama-lens abo kufanele abe nomsebenzi wokulwa nokukhathala, ukuvimbela ukukhanya okuluhlaza okulimazayo nokuvikela impilo yamehlo.
Imikhiqizo efanelekile amalensi e-photochromic anombala ogcwele, namalensi aphikisayo aluhlaza okwesibhakabhaka e-photochromic.
Abafundi bakhetha kanjani?
Njengoba abafundi bengaphansi kwengcindezi enkulu yokufunda, ukuthi banganciphisa kanjani ngempumelelo futhi balawule ukukhula kwe-myopia kuhlale kuwukukhathazeka okukhulu kubafundi nakubazali babo.Izimbangela ze-myopia ezinganeni nasentsheni zihlukile, ngakho-ke ngaphambi kokuthola incwadi kadokotela, kufanele uqale uhlole ukuhlolwa kwe-optometric, bese ukhetha umkhiqizo ohlangabezana nezidingo zakho ngokusekelwe emiphumeleni yokuhlolwa kanye nesimo samehlo akho. , ukubambezela ngempumelelo ukuthuthukiswa kwe-myopia.
Kubafundi abanengcindezi yokufunda ekhulayo, imikhiqizo efanelekile amalensi aqhubekayo, amalensi avimbela ukukhathala, namalensi okuvimbela i-myopia kanye nokulawula anomklamo we-peripheral defocus.
Bakhetha kanjani abantu abadala?
Njengoba abantu bekhula, i-lens iyaguga kancane kancane, futhi nomthetho uyancipha, ukuze kancane kancane bathole ukubona okufiphele kanye nobunzima bokubona eduze, okuyisenzakalo esivamile sokuphila, okungukuthi, i-presbyopia.Uma benamaphutha e-refractive lapho bebuka kude, bazoba nokungaboni kahle kuwo wonke amabanga.Ngakho-ke, isidingo sabo esikhulu ukubona ngokucacile nangokunethezeka kuwo wonke amabanga - akude, aphakathi nendawo, naseduze - kanye nokwanelisa yonke inqubo yekhwalithi yokubukwa ephezulu.
Okwesibili, ingozi yezifo ezihlukahlukene zamehlo (i-cataract, i-glaucoma, njll.) iyanda ngokukhula, ngakho-ke badinga nezinga elithile lokuvikelwa kwe-UV.
Uma izidingo ezingenhla zihlangatshezwana, abantu abaneminyaka ephakathi kanye nabakhulile bangakhetha amalensi e-photochromic we-presbyopia, afaneleka kakhulu kubo.Phakathi naleso sikhathi, uma bebuka ama-TV amaningi namaselula, ama-lens aphikisana nokukhanya okuluhlaza okwesibhakabhaka okuyi-photochromic nawo ayisinqumo esihle.
Ngamafuphi, amaqembu eminyaka ehlukene, anezidingo ezihlukile zokubuka, adinga izindlela ezihlukahlukene zokuhlola impilo yamehlo ukuze acacise imingcele yamalensi kadokotela nemikhiqizo ehlukene ukuze anelise abantu abahlukene.
Isikhathi sokuthumela: Jul-02-2024