Abantu abaninzi abaneeglasi ezityhafileyo iminyaka
Kunokubakho ukuthandabuza okunjalo njenge:
Ukunxiba iiglasi kangangexesha elide, kubaluleke kakhulu ukuhlelwa kweelensi
I-Myopia kunye ne-hypetropia? Yintoni eyona nto kugxilwe kuyo kunye nokugxila kwi-multi?
Isidenge asikwazi ukuxelela umahluko
Ukukhetha iilensi kuyadideka ngakumbi:
Luhlobo luni lweelensi ezifanelekileyo kuwe?
Zonke iintlobo zemisebenzi? Zeziphi izinto endizifunayo?
Zonke iintlobo zeelensi;
Ukuba iilensi zahlulwe kugxile kugxininiso, zinokwahlulwa zangamaphepha aphambili (i-monophoto), ilensi ephethwe kabini, ilensi ye-Multi.
I-lenses ye-stitoocal eqhubela phambili, ekwabizwa ngokuba ziilensi zenkqubela phambili, zinamanqaku agxila kakhulu kwilensi.
Namhlanje siza kuthetha nge-lenses eqhubela phambili
Yintoni i-lens ye-stitofocal ye-stifocal?
Iiglasi ezininzi eziqhubela phambili, ezinamanqaku agxile kwiilonsi enye ngaxeshanye, inguqu ngokuthe ngcembe ukusuka kwindawo ekude ephezulu kwelensi ukuya ezantsi.
Ukuba namandla amaninzi kwiilensi enye ngokwahlulahlulwa ngokwahlukeneyo: kude, phakathi kwaye kufutshane:
1, Indawo yokujonga ephezulu
Isetyenziselwa umbono omde, njengokudlala, ukuhamba, njl
I-2, embindini weSithili soMbindi
Ngombono ophakathi wokubona, njengokubukela ikhompyuter, ukubukela umabonwakude, njl
I-3. Ukujonga ngasezantsi kufutshane nendawo
Isetyenziselwa ukujonga ukuvala, ezinjengeencwadi zokufunda, amaphephandaba, njl
Ke ngoko, inxibe kuphela iiglasi, inokwanelisa isibango kude, yabona, 'ubone umbono kufutshane.
I-phenomeya eqhelekileyo yomzimba:
I-Persgoopia, ngokuthe ngcembe ivela ngokunyuka kweminyaka, ibonakaliswa ikakhulu njengoko kungakwazi ukubona izinto kuluhlu olusondeleyo. Le meko iya kunciphisa ukusebenza kakuhle komsebenzi kwaye kuchaphazele umgangatho wobomi.
I-lenses ye-inses ye -us (i-inses ye -usus ye-scociocal sisisombululo esihle kule ngxaki
Ngomsebenzi obalaseleyo
Ndithandwa kakhulu kwaye ndifunwe emva kokudweliswa
I-Post Time: Sep-10 ukuya kwi-2022