Isimbangela sesifo se-astigmatic ukuphulwa kobuchopho be-cornea, ngenxa yokuthi yiziphi izici ezimbili ezibonakalayo ezisehlweni. I-Astigmatism ithembisa isithombe esicacile kumuntu, yingakho odokotela beluleka iziguli ukuba zigqoke ama-lens astigmatic, okulula kakhulu ukuwasebenzisa kunezibuko.
Ama-lensi axhumanisayo noma ama-toric ahluke kakhulu kwezinye izinhlobo zama-lens, ngoba ubuso behlo akukuhle kakhulu, futhi isidakamizwa kufanele sithinteke ngokuqinile kumfundi. Ngakho-ke, abantu ababhekene ne-astigmatism, besaba ukusebenzisa amalensi, becabanga ukuthi akusizi kahle futhi akusizi. Kodwa lokhu akunjalo! Imithi iye yahamba phambili futhi namuhla ama-toric lens anomumo ophelele.
Amalense wezinsuku ezilodwa
Ama-lens astigmatic lensuku olulodwa ajwayelekile kumakethe. Zilula ngoba azidingi ukunakekelwa kwansuku zonke. Kulesi simo, i-Toric inenani elibiza kakhulu. Namuhla, i-lens eyodwa yosuku lithengiswa ngobuningi bezingcezu ezingu-10 noma ngaphezulu kwiphakheji elilodwa. Isibonelo, i-Acuvue One Day Moist yama-Astigmatism lens inikezwa ngamaphakheji ka:
- Izingcezu ezingu-10;
- Izingcezu ezingu-20;
- Ama-90 ama-pcs;
- 110 ama-pcs;
- Ama-160 ama-pcs;
- Ama-170 ama-pcs;
- Ama-pcs angu-180.
Ungakhetha iphakethe elincane noma, ngokuphambene, likhulu isikhathi eside.
Ama-lens ombala
Umbala we-lens astigmatic akuyona into evamile ezitolo ze-optics. Kodwa kulokhu futhi kunezidingo ezibhekene ne-tori, udokotela wakho azithumele phambili, futhi ikakhulukazi ukuvinjelwa okuyisisekelo kwe-lens, ubukhulu be-axis ye-cylinder njalonjalo, kubalulekile.
Ama-lens ombala akhethiwe ngokufanayo namanye ama-lensi. Uma ukhetha umbala, udinga ukucabangela umbala wakho weso futhi uxhumane nomchwepheshe ukuze uthole umphumela oyifunayo ekuzameni kokuqala.
Ungagqoka kanjani ama-lens astigmatic?
Geza izandla zakho kahle ngaphambi kokuqala inqubo. Emva kokomisa izandla zakho ngethawula, hlola iminwe yakho, kumathiphu abo akufanele agcine i-villi. Lesi esinye sezimo eziyinhloko zokususwa okulungile nokugqoka ama-lens. Okulandelayo, sebenzisa i-pair of tweezers ekhethekile ukuze ususe i-lens kusuka ku-blaster. Uma unquma ukwenza ngaphandle kokuqhafaza, ke uqaphele: izipikili ezide noma ukuthinta okunganaki kungalimaza. Bese uhlola i-lens, akufanele ibe nemibimbi, ukuphahlazeka noma ezinye iziphambeko. Kunoma yikuphi, i-lens ewonakele akufanele isetshenziswe.
Emva kokuhlola umkhiqizo, qhubeka nokugqoka:
- Donsela ijwabu leso elingaphansi phansi ngomunwe wesandla esisodwa bese ulungisa lesi sikhundla.
- Okulandelayo, ukugcoba noma umunwe oletha i-lens eduze kweso, bese uyithinta esikhaleni esingezansi kwe-cornea. Ukusebenzisa amandla akudingekile - kuyabuhlungu kuphela.
- I-lens izogxila kakhulu eduze kweso. Ngaphambi kokuthi ususe umunwe wakho kwijwabu leso, kancane kancane ubheke phezulu, phansi, ngakwesokunxele nangakwesokudla, bese uchofoza.
- Uma ungazizwa ungakhululekile, khona-ke i-lens ifakwe kahle ku-eyeball.
Ngokuvamile, ukugqoka i-lens astigmatic akufani nezinye izinhlobo zamalensi, ngakho akufanele ukwesabe ukwenza okuthile okungalungile. Into esemqoka ukulandela imiyalelo ngokuqondile.