Pambuyo pa zaka 40, amayi nthawi zambiri amapita patsogolo kapena kutalika. Matendawa amakhala otsika kwambiri m'maso mwa diso, chifukwa amalephera kusintha msangamsanga mawonekedwe ake ndikupereka masomphenya omveka pamtunda uliwonse. Mukamagwiritsa ntchito magalasi, muyenera kugula awiriawiri, mwachitsanzo, kuwerenga, ntchito tsiku ndi tsiku, kugwira ntchito pa kompyuta.
Magalasi othandizira a Multifocal ndiwo abwino koposa magalasi owongolera maso. Zimakonzedwa m'njira yoti ma lenti awiri amakupatseni kuti muwone bwino zinthu zomwe zili kutali. Malingana ndi zosowa, pali mitundu yambiri ya kusintha kwake.
Kodi mungasankhe bwanji malingaliro amtundu wa multifocal?
Mukhoza kugula mapulogalamu abwino kuti musamangokhalira kukonza mankhwala okhaokha mukatha kukambirana ndi katswiri wamagetsi. Pa phwando, adokotala amadziwa kuti ndi angati omwe amayenera kuganizira zinthu zosiyana.
Kusankhidwa kwa makina opangira ma multifocal akuchitika pakati pa mitundu yotsatirayi:
- Bifocal. Mapulogalamu osiyanasiyana ali ndi magawo awiri opanga, m'munsimu - pofuna kuona bwino pafupi, kumalo okwera - poyang'ana zinthu zakutali.
- Zovuta. Muzipangizo zoterezi, magawo 2-3 opangidwira amakhala okonzeka kuzunguliridwa kuchokera pakati ndi kumbali.
- Aspherical. Malonda awa amaonedwa kuti ndi opambana kwambiri komanso opitilirapo. Kwa masomphenya oyandikana nawo, malo opakati a optical ndi opangidwa. Kuchokera pamphepete mwa chipangizochi, mphamvu ya refractive imasiyanitsa pang'onopang'ono, zomwe zimapangitsa kuti ziwone bwino osati patali ndi pafupi, komanso pamtunda wapakati.
Zili zovuta kusankha njira yowonongeka maso, popeza ndi ya mitundu yosiyanasiyana - yowonjezera, yokonzedweratu, ndi lens limodzi lamagetsi amodzi. Komanso, kuuma kwa nkhaniyi kumakhudzanso, mwachitsanzo, pali sililicone-hydrogel, yolimba, ndi yofewa ya hydrophilic.
Mitundu yamakono yolumikizira multifocal
Mitundu yamakono yotereyi imayenera kukhala mpweya wokwanira kuti mupange mpweya wa diso kwaulere, komanso kuti mukhale ndi chinyezi chokwanira kuti muteteze, kukhumudwa ndi kukhumudwa.
Zotsatira zotsatirazi za lenti zamtundu wa multifocal ziyenera kukwaniritsa zofunikazi:
- CIBA Vision Alcon Air Optix Multifocal;
- Bausch + Lomb PureVision2 Kwa Presbyopia;
- Chipulumutso;
- Luso la Bausch + Lomb Soflens Multi-Focal;
- CooperVision Biofinity Multifocal;
- Bausch + Lomb PureVision Multi-Focal;
- Mark'ennovy Xtensa Multifocal;
- CooperVision Rhythmic UV Multifocal.
Maina a chipangizo omwe tatchulidwa pamwambawa akukonzedwa kuti azivale chovala chokwanira ndi cholinga chokonzekera. Ambiri mwawo amapangidwa ndi soft hydrophilic material, ali ndi luso lapamwamba loti asunge chinyezi ndi filimu yoteteza maso, lolani kupita kwa oksijeni.
Ngati mukufuna kunyamula zipangizo zamasiku amodzi, muyenera kumvetsera makina a multifocal a Clariti 1 Tsiku Multifocal kuchokera ku Sauflon ndi Proclear 1 Tsiku Multifocal kuchokera ku CooperVision. Komanso zabwino ndi Alcon Dailies AquaComfort Plus Multifocal, yotulutsidwa ndi CIBA Vision.
Phukusi lililonse liri ndi mapaundi 30 a lens omwe amayenera kusintha tsiku ndi tsiku. Kupindula kwa mtundu uwu wa masomphenya kuwongolera ndizoyeretsa zawo zonse. Kuphatikiza apo, magupa a multifocal lens amakhala ndi madzi abwino kwambiri, omwe amateteza diso kuti lisayese.