Ama-lens othintana nabo alula kakhulu kunezibuko, ngoba angaboni, ungacindezeli ebhuloho lekhaleni nasesikhumba ngemuva kwezindlebe. Ngaphezu kwalokho, ukulungiswa kokubona okunjalo kungabonakali kwabanye, kukuvumela ukuba ugcine isitayela sakho. Abantu abaqala ukuthola le divayisi kumele bazi kusengaphambili indlela yokufaka kahle ama-lens emehlweni. Lokhu kuzoqinisekisa ukuthi izinzwane zabo zikhululekile, futhi ngokuhamba kwesikhathi kuzokwenza ijubane kakhulu inqubo yokugqoka.
Iphi uhlangothi lokufaka i-lens?
Ngisho lapho uqaphela kuqala amadivaysi acatshangwayo kucaca ukuthi yikuphi okumele kutholakale ku-cornea.
Ingxenye yangaphandle ye-eyeball i-convex, ukuze i-lens igwebe, kufanele isetshenziswe ngecala le-concave.
Yini engiyidingayo ukuze ngiyazi ngaphambi kokufaka amalensi oxhumana nabo emehlweni ami okokuqala?
Bobabili abaqalayo nabanakekeli be-lens kumele bahambisane nemithetho elandelayo:
- Yenza njalo inqubo ngezandla ezihlanzekile.
- Gcina i-lens kuziqukathi ezikhethekile.
- Njalo ushintshe ukuhlanza oketshezi.
- Thola ama-lens kuphela ngokuziphuza.
- Faka idivayisi ngaphambi kokufaka ukwakheka, susa - ngemva kokukhipha.
Ungafunda kanjani ukufaka amalensi oxhumana nabo?
Akunzima ukuthola amakhono adingekayo. Kwanele nje izikhathi ezimbalwa ukuqhuba phambi kwesibuko, futhi inqubo yokugqoka nokukhipha izesekeli kuyoba lula futhi esheshayo.
Imiyalo yokuthi ungangenisa kanjani kahle amalensi okuxhumana :
- Geza izandla zombili kahle nge-sese namanzi. Bambisana ngethawula.
- Susa i-lens esitsheni bese uyibeka phakathi kwesundu.
- Thela kancane ukuhlanza amanzi kuso.
- Beka i-lens engxenyeni yomunwe wenkomba yesandla esiholela. Kubalulekile ukuthi kuncane ngangokunokwenzeka ukuxhumana nalesi sikhumba hhayi ukunamathela. I-lens kufanele ilale nehlangothini layo le-convex phansi.
- Ngeminwe ephakathi yezandla zombili zidonsa ama-eyisikili angenhla nangaphansi, ngokuvula ngokukhululekile iso. Ungakwenza lokhu ngesandla esisodwa, samahhala.
- Namathisela i-lens phakathi kwe-eyeball. Kunconywa ukuthi ubheke kude. Kumele uqaphele ukuthi uma uphazamisa ikhanda lakho kancane, i-lens ifakwe kangcono - ithogela kalula emunwe wakho ngenxa yamandla adonsela phansi.
- Susa umunwe wenkomba kusuka ku-lens, usalokhu ubambe amajwabu amehlo.
- Hambisa i-eyeball, bheka ngezindlela ezihlukile.
- Sika izinkophelo futhi uthathe iso kancane, ukuze i-lens itholakale ku-cornea.
Ukufakwa kahle kwama-lens kuqeda noma yikuphi ukunganaki, ukulimala noma ukungakhululeki.