Emva kweminyaka engama-40, abafazi basoloko bekhula ixesha elide lokujonga okanye ukuxhomekeka . Esi sifo sibonakaliswe ukuhla kwe-lens yeso, ngenxa yokuba ilahlekelwa ngamandla ayo okutshintsha ngokukhawuleza ukuma kwayo kwaye inikeze umbono ocacileyo naliphi na umgama. Xa usebenzisa iiglasi, kufuneka uthenge amabini amabini, ngokomzekelo, wokufunda, imisebenzi yansuku zonke, ukusebenza kwikhompyutha.
Iilensi zokudibanisa ze-Multifocal zona zilungelelaniso kunezinye iziglasi zokulungiswa kwamehlo. Ziye zacwangciswa ngendlela yokuba enye iilensi ivumela ukuba ubone izinto ezikude. Ngokuxhomekeke kwiimfuno, kukho iintlobo ezininzi zezo zilungelelaniso.
Unokukhetha njani iilensi zamanxi
Ungathenga iilensi ezifanelekileyo zokulungisa i-presbyopia kuphela emva kokubonisana ne-ophthalmologist. Kwamkelekileyo, ugqirha uya kugqiba ukuba zininzi iinkalo ezibonakalayo kufuneka kubekho ukugxila kwizinto ezingafaniyo.
Ukukhethwa kweefayili ezinxibelelwano ezichanekileyo ezenziwa ngokufanelekileyo phakathi kwezi zixhobo zilandelayo:
- Bifocal. Iilensi eziguqukayo zinemihlaba engama-2 ebonakalayo, kwicandelo elincinane - ukujonga okucacileyo kufuphi, kwindawo engaphezulu-ukujolisa kwizinto ezikude.
- Umncinci. Kwiinkalo ezinjalo, ii-2-3 zendawo zilungelelaniswe ngeenxa zonke kwinqanaba ukuya kwipheriphery.
- Aspherical. Ezi iilensi zibhekwa njengezona ziphambili kwaye zihamba phambili. Ngomboniso osondeleyo, ummandla ophambili wendawo ukhangelwe. Ukusuka kuwo ukuya emacaleni kweso sixhobo, amandla okubuyisela ahluka ngokuthe ngcembe, okwenza kube lula ukubona kuphela kumgama nakude, kodwa nakwiimimitha eziphakathi.
Kunzima ukukhetha iindlela zokulungiswa kwamehlo, njengokuba zintlobo ezahlukileyo-zendabuko, ezitshintshiweyo kunye nolunye usuku lwama-contact lens. Ngaphezu koko, ubunzima bezinto eziphathekayo bubalulekile, umzekelo, kukho i-silicone-hydrogel, eqinile, kunye ne-hydrophilic devices.
Iilensi zokudibanisa eziphezulu ze-multifocal
Iilensi ezicetywayo zolu hlobo kufuneka zibe yi-gesi engaphephekiyo ukubonelela ngokukhululeka kwe-oksijini kwiso, kwaye unomxholo ophezulu wokunyameka, ukucaphukisa kunye nokukhala .
Ezi zilandelayo zixhobo zeelense ze-multifocal zidibana neemfuno ezibhalwe apha:
- I-CIBA Vision Alcon Air Optix Multifocal;
- I-Bausch + Lomb PureVision2 Kwi-Presbyopia;
- I-Sauflon Clariti Multifocal;
- I-Bausch + I-Lomb Soflens I-Foc-Focal;
- CooperVision Biofinity Multifocal;
- I-Bausch + Lomb PureVision Multi-Focal;
- UMark'ennovy Xtensa Multifocal;
- CooperVision Rhythmic UV Multifocal.
Amagama ezixhobo ezikhankanywe ngentla zijoliswe ekugqokeni ixesha elide kunye nokutshintshwa okucetywayo. Uninzi lwalo lwenziwa ngezinto eziphathekayo, zikwazi ukugcina umswakama kunye nefilimu ekhuselekileyo emehlweni, vumela i-oksijeni idlule.
Ukuba ufuna ukuthabatha izesekeli zosuku olulodwa, kufuneka ubeke ingqalelo kwiilensi zokudibanisa ezininzi ze-Clariti 1 Day Multifocal ukusuka kwi-Sauflon kunye neProclear 1 Day Multifocal esuka kwi-CooperVision. Kwakhona umgangatho omhle yiAlcon Dailies AquaComfort Plus Multifocal, eveliswe yiCIBA Vision.
Iphakheji nganye iqulethe iipahla ezingama-30 zeelensi ezijoliswe ekutshintshelweni kwansuku zonke Inzuzo yaloo ndlela yokulungiswa kombono yongcolileyo. Ukongezelela, ezi zixhobo ze-lens multitifocal zinobuncwane obuphezulu bomhlaba, okhusela iliso ekumeni.