UMPHUMELA WOMBONO | IQEDIWE | KUPHELILE | |
IZINGA | UMBONO OWODWA | 1.49 INkomba | 1.49 INkomba |
1.56 INKOMBA EPHAKATHI | 1.56 INKOMBA EPHAKATHI | ||
1.60/1.67/1.71/1.74 | 1.60/1.67/1.71/1.74 | ||
I-BIFOCAL | IPHEPHA ELIPHEZULU | IPHEPHA ELIPHEZULU | |
ESIPHEZULU ESIYIZULU | ESIPHEZULU ESIYIZULU | ||
AKUBONAKALI | AKUBONAKALI | ||
OKUQHUBEKAYO | IKHOSI ELIFUSHANE | IKHOSI ELIFUSHANE | |
I-REGULAR Corridor | I-REGULAR Corridor | ||
UMZANKO OMUSHA 13+4mm | UMZANKO OMUSHA 13+4mm |
● Amalensi Ombono Owodwa: Iyini ilensi yombono owodwa?
Uma kunzima ukugxila ezintweni eziseduze noma ezikude, amalensi okubona okukodwa angasiza. Bangasiza ukulungisa: Amaphutha e-refractive we-myopia ne-presbyopia.
● Amalensi agxile kakhulu:
Uma abantu benenkinga yokubona engaphezu kweyodwa, amalensi anamaphuzu amaningi okugxilwe kuwo ayadingeka. Lawa ma-lens aqukethe imiyalelo emibili noma ngaphezulu yokulungiswa kombono. Izixazululo zifaka:
I-Bifocal lens: Le lens ingahlukaniswa izingxenye ezimbili. Ingxenye engaphezulu isiza ukubona izinto ezikude, kanti ingxenye engezansi isiza ukubona izinto eziseduze. I-Bifocals ingasiza abantu abangaphezu kweminyaka engama-40 abaphethwe i-presbyopia. I-Presbyopia eholela ekwehleni okuqhubekayo kwekhono lokugxila emabangeni aseduze.
Ilensi eqhubekayo: Lolu hlobo lwelensi lunelensi idigri yalo eshintsha kancane kancane phakathi kwamadigri amalensi ahlukene, noma igradient eqhubekayo. I-lens kancane kancane iqala ukugxila njengoba ubheka phansi. Kufana nezibuko ze-bifocal ezingenazo imigqa ebonakalayo kumalensi. Abanye abantu bathola ukuthi ama-lens aqhubekayo adala ukuhlanekezela okuningi kunezinye izinhlobo zamalensi. Lokhu kungenxa yokuthi indawo eyengeziwe yelensi isetshenziselwa uguquko phakathi kwamalensi amandla ahlukene, futhi indawo okugxilwe kuyo incane.
Lawa ma-lens asiza uma unenkinga yokugxila ezintweni eziseduze noma ezikude. Amalensi anombono owodwa angalungisa:
● I-Myopia.
● I-Hyperopia.
● I-Presbyopia.
Izibuko zokufunda ziwuhlobo lwamalensi anombono owodwa. Ngokuvamile, abantu abane-presbyopia babona izinto ezikude ngokucacile kodwa banenkinga yokubona amagama lapho befunda. Ukufunda izibuko kungasiza. Ungavame ukuwathenga esitolo semithi noma esitolo sezincwadi, kodwa uzothola ilensi enembe kakhulu uma ubona umhlinzeki wezempilo ukuze uthole incwadi kadokotela. Ngaphezulu kwekhawunta abafundi abasizi uma amehlo angakwesokudla nakwesokunxele enemiyalelo ehlukene. Ngaphambi kokuzama ukusebenzisa abafundi, bona uchwepheshe wakho wokunakekelwa kwamehlo kuqala ukuze uqiniseke ukuthi ungazisebenzisa ngokuphepha.
Uma unenkinga yokubona engaphezu kweyodwa, ungase udinge izibuko ezinamalensi amaningi. Lawa ma-lens aqukethe imiyalo emibili noma ngaphezulu yokulungisa umbono. Umhlinzeki wakho uzoxoxa nawe ngezinketho zakho. Izinketho zifaka:
✔ Ama-Bifocals: Lawa ma-lens awuhlobo oluvame kakhulu lwama-multifocal. Ilensi inezigaba ezimbili. Ingxenye engenhla ikusiza ukuthi ubone izinto ezikude, kanti ingxenye engezansi yenza ukwazi ukubona izinto eziseduze. I-Bifocals ingasiza abantu abangaphezu kweminyaka engama-40 abane-presbyopia, okubangela ukwehla kwekhono lakho lokugxila eduze.
✔ Ama-Trifocals: Lezi zibuko zamehlo ziyi-bifocal ezinengxenye yesithathu. Ingxenye yesithathu isiza abantu abanenkinga yokubona izinto eziseduze nengalo.
✔ Iyathuthuka: Lolu hlobo lwamalensi lune-lens etshekile, noma i-gradient eqhubekayo, phakathi kwamandla ahlukene amalensi. Ilensi igxila kancane kancane njengoba ubheka phansi phakathi kwayo. Kufana nama-bifocals noma ama-trifocal ngaphandle kwemigqa ebonakalayo kumalensi. Abanye abantu bathola ukuthi ama-lens aqhubekayo adala ukuhlanekezela okuningi kunezinye izinhlobo. Lokho kungenxa yokuthi indawo eyengeziwe yelensi isetshenziselwa ukushintsha phakathi kwezinhlobo ezahlukene zamalensi. Izindawo okugxilwe kuzo zincane.
✔ Izibuko zekhompyutha: Lawa ma-lens ane-multifocal anokulungiswa okuqondiswe ngqo kubantu okudingeka bagxile kuzikrini zekhompyutha. Zikusiza ukuthi ugweme ukucindezelwa kwamehlo.