Emkhakheni wezingubo zamehlo, amalensi adlala indima ebalulekile ekunikezeni umbono ocacile futhi onethezekile. Uma ukhuluma ngenjongo yelensi, igama elithile elithile elivame ukuvela lithi 1.499. Kodwa lisho ukuthini ngempela? Kuthinta kanjani umuzwa wethu obonakalayo?
Kalula nje, u-1.499 ubhekisela kunkomba ye-refractive ye-lens material. Inkomba ye-refractive inquma ukuthi ingakanani ilensi engakwazi ukugoba njengoba ukukhanya kudlula kuyo, ekugcineni kuthinte ikhono layo lokulungisa izinkinga zombono. Inkomba ephakeme ye-refractive isho ukuthi ilensi ingakwazi ukugoba ukukhanya ngokuphumelelayo, okuholela kumalensi azacile, alula. Ngakolunye uhlangothi, inkomba ephansi ye-refractive ingase idinge amalensi aminyene ukuze kuzuzwe izinga elifanayo lokulungiswa.
1.499 amalensi, evame ukutholakala ezingilazini zamehlo, inikeza ibhalansi enhle phakathi kwesisindo, ukujiya nokusebenza kokubona. Zenziwe ngepulasitiki ebizwa ngokuthi i-CR-39, eyaziwa ngezinto zayo ezinhle kakhulu zokubuka. Lawa ma-lens ayatholakala ezinhlobonhlobo zemiyalelo, okuhlanganisa ukubona eduze, ukubona kude, kanye ne-astigmatism.
Enye yezinzuzo eziyinhloko zamalensi angu-1.499 ukufinyeleleka kwawo. Abiza kancane ukukhiqiza kunamalensi anezikhombo eziphezulu zokugqamisa njenge-1.60 noma 1.67. Lokhu kuwenza abe yinketho edumile kubantu abafuna isixazululo sezingubo zamehlo esingabizi ngaphandle kokuyekethisa ikhwalithi yokubuka.
Ukwengeza, amalensi angu-1.499 anikeza ukumelana nomthelela omuhle kakhulu nokuqina kokugqoka kwansuku zonke. Azijwayele ukuklwejwa futhi zingamelana nemithelela yengozi kangcono kunezinye izinto zamalensi. Kodwa-ke, kufanele kuqashelwe ukuthi kungenzeka angabi mncane noma alula njengamalensi anenkomba aphezulu. Uma unencwadi kadokotela ephakeme, ungase ufune ukuhlola izinketho eziphakeme zenkomba ukuze uthole ukubukeka okuhleleke kakhudlwana.
Kafushane, inhloso yamalensi angu-1.499 ukuhlinzeka abantu ngabanye ngenketho ethembekile nethengekayo yokulungisa umbono wabo. Kungakhathaliseki ukuthi ubona eduze, ubona kude, noma une-astigmatism, lawa ma-lens anikeza ibhalansi efanele yokusebenza kanye nentengo. Ngokuqonda umhlaba we1.499 amalensi, ungenza isinqumo esinolwazi lapho ukhetha izingubo zamehlo ezifanelana nezidingo zakho.
Isikhathi sokuthumela: Nov-29-2023