Isizathu sezifo ze-astigmatic ukuphulwa kobunzima be-cornea, ngenxa yokuba yeyiphi i-foci e-optical ebonakalayo kwiso. I-Astigmatism ithembisa umfanekiso ogqithisileyo kumntu, kungenxa yoko oogqirha bacebisa izigulane ukuba zigqoke iilensi ze-astigmatic, ezona zilungele ngakumbi ukusebenzisa iziglasi.
I-astigmatic okanye i-toric contact lens ihluke kakhulu kwezinye iindidi zamalensi, kuba ubuso bomlenze abukude, kwaye isilwanyana kufuneka sinamathele ngokuqinisekileyo kumfundi. Ngako oko, abantu abaphethwe yi-astigmatism, besoyika ukusebenzisa i-lens, becinga ukuba akukhathazi kwaye akunakwenzeka. Kodwa oku akunjalo! Uthe unyango luye phambili kwaye namhlanje iilensi zamathambo zinemilo epheleleyo.
Iilensi zelanga elilodwa
Iilen-day astigmatic lens ayiqhelekanga kwimarike. Ziyakulungeleka kuba azidingeki ukunakekelwa kwansuku zonke. Kule meko, i-Toric inexabiso elithengi kakhulu. Namhlanje, iilensi zamalanga-nye zithengiswa ngobuninzi beempahla ezili-10 okanye ngaphezulu kwiphakheji enye. Ngokomzekelo, i-Acuvue One Day Moist ye-Astigmatism lenses inikezwa kwiiphakheji ze:
- Iziqwenga ezili-10;
- Iziqwenga ezingama-20;
- 90 pcs;
- 110 iipcs;
- 160 pcs;
- 170 pcs;
- 180 iipcs.
Unokuzikhethela iphakheji encinci okanye, ngokuchaseneyo, likhulu ixesha elide.
Iilensi zombala
Umbala we-lenstigmatic lenses awuqhelekanga kwii-optics. Kodwa kule meko kwakhona iimfuno kwi-tori, ugqirha wakho uqhube phambili, kwaye ngokukodwa ukukhawuleka okuyisiseko kwe-lens, ubungakanani be-axis ye-cylinder njalonjalo, kubalulekile.
Iilensi zemibala zikhethwa ngokufanayo kwezinye iilensi. Xa ukhetha umbala, kufuneka uhlolisise umbala wamehlo kwaye uthintane neengcali ukuze ufumane umphumo oyifunayo kumzamo wokuqala.
Indlela yokugqoka iilensi ze-astigmatic?
Geza izandla phambi kokuba uqale inkqubo. Emva kokumisa izandla zakho ngendwangu, hlola iminwe yakho, kwiingcebiso zabo akufanele zihlale zi-villi. Le ngenye yeemeko eziphambili zokususwa okuchanekileyo nokubeka iilensi. Emva koko, sebenzisa idilesi ekhethekileyo yokuqhawula ukususa i-lens kwi-blaster. Ukuba uthatha isigqibo sokwenza ngaphandle kokuqhawula, ke uqaphele: izipikili ezide okanye ukunyaniseka kungaphazamisa. Emva koko uhlole i-lens, akufanele ibe nemibhobho, ukucima okanye ezinye iziphoso. Kukho nawuphi na, i-lens eyonakalisiweyo ayifanele isetyenziswe.
Emva kokuhlola le mveliso, qhubeka ukugqoka:
- Thabatha inkophe ephantsi phantsi ngomnwe ngesinye isandla uze ulungise le ndawo.
- Emva koko, ukugqithisa okanye umnwe ozisa i-lens kufuphi neliso, kwaye uyichukumise kwisikrini ngaphantsi kwe-cornea. Ukusebenzisa amandla akuyimfuneko - ibuhlungu kuphela.
- I-lens iya kubambelela eduze kwiso. Ngaphambi kokuba ususe umnwe kwijwabu leso, khangele uphakamise phezulu, phantsi, ngakwesobunxele nangakwesokudla, uze udibanise.
- Ukuba ungaziva ukhululekile, i-lens ifakwe ngokufanelekileyo kwi-eyeball eye.
Ngokuqhelekileyo, ukugqoka i-astigmatic lens ayifani kwezinye iilensi, ngoko akufanele ukwesaba ukwenza into engalunganga. Into ephambili kukulandela imigaqo ngokuchanekileyo.