Iinkcukacha zoqhagamshelwano lendlela yokukhetha indlela efanelekileyo?
Kukho iintlobo ezintlanu zama-lens:
Iilensi ezinzima. Le nguqulo ye-lens iyona ifanelekile kubantu abane-cornea ne-astigmatism engalinganiyo. Iilensi ezinjalo zenzelwe ukusetyenziswa kwexesha elide, kodwa zibe neengxaki zabo. Impendulo yokuqala kukuba ngelixa ufundeka kwaye unokuthuthuzeleka, kuya kuthatha iiveki ezimbalwa. Isithintelo sesibini kukuba i-oksijini ayifanele ingaphepheki, ngoko kufuneka igugile ngokungapheli iiyure ezingama-20.
Iilensi zizinzima , kodwa i-oksijeni ingena ngamehlo ngokukhululeka. Ukuphuculwa ngokuphawulekayo kwimbono ngenxa yolu (nangona sebenzisa ukufikelela kwiminyaka emi-5) kwaye ngelixa i-lens ezifayo zikhululekile.
Iilensi eziphantsi kakhulu zidlula i-oxygen. Ngenxa yomxholo ophezulu wamanzi kwiilensi ezixhamlileyo, abantu abaninzi bavumelanisa ukusuka kwiintsuku zokuqala zokugqoka. Iilensi ezinjalo zichanekile i-hyperopia kunye ne-myopia, kodwa i-astigmatism ayilunganga.
Ii-lens ezinxibelelwano ezicwangcisiweyo ezenzelwe ukugqoka ixesha elide. Ngenxa yezinga eliphezulu kakhulu lomxholo wamanzi kwilo lensi, zinokususwa ngaphandle kokugqoka ukuya kwinyanga. Kodwa, ngelishwa, ukwandisa umngcipheko wokusuleleka, ekubeni i-lens engcolileyo ihlala ixesha elide kwiso.
Iilensi eziphantsi ezenzelwe ukusetyenziswa kwexesha elifutshane. Olu hlobo lwama-lens adibeneyo lukhethekileyo, apho zonke iiveki ezi-2-4 ziguquka. Iilensi ezinjalo ziya kuba zidume kakhulu. Ukuhlanjululwa ngendlela efanayo neelensi eziqhelekileyo eziqhelekileyo.
Intuthuko yakutshanje kwi-teknoloji yokucoca kunye nokuvelisa iintlobo ezahlukeneyo zama-lens adibanisa kwenza kube lula ukuziphathela kwinani elikhulu labantu. Kodwa kwanamhlanje ii-lens zokuqhagamshelana nazo zingasombululi zonke iingxaki ngombono kwaye abanye abantu abafanelanga. Oku kwenzeka ngenxa yamehlo athathekayo okanye iimfuno ezikhethekileyo ze-optical.
Abaninzi bama-oculists abacebisi abantwana ukuba basebenzise ii-lens zokudibanisa, kuba zingonakalisa iso xa zigqoka okanye zisusa iilensi. Kwakhona, kwiindawo ezinomileyo okanye emoyeni owomileyo, unokuziva unxibelelwano lwama-lensi "njengesanti entweni." Kwakhona kunokuba nomvakalelo ongathandekiyo xa ugula ngenxa yokubanda, kuba amehlo akho athambisa onke amaxesha, okanye ngokuphambene naso, ayomile ngokweqile, ngenxa yokusetyenziswa kweziyobisi.
Kukho neemeko ezinjalo ukuba ngexesha lokuya esikhathini kwamanye amabhinqa, iilensi zenza ukunganyanzeliseki okwethutyana ngexesha lokukhulelwa okanye ukuthatha i-contraceptive, njengoko ukuchithwa kwamakhemikhali kushintshana kwiinkcenkceshe zamanzi. Abantu abasebenza kwindawo engcolileyo ngamakhemikhali, uthuli kunye nezinye izibilini ezibangelwa emoyeni ngamanye amaxesha zifumana iincinci ezincinci zala manxeba phantsi kweelensi zokudibanisa, ezibangela ukuba zingabonakali. Kwiimeko ezinje, iibhogi kufuneka zigugile.
Iingxaki ezinxulumene neengubo zengxube yoqhagamshelwano zithintela malunga ne-4% yabanini babo ngonyaka, kwaye ziphazamise amehlo e-mucosa, iifomati zeziqabetho, izitha ze-corneas ezahlukeneyo, kunye ne-eyelidi. Izifundo ezenziwe ngabaososayensi kwimiphumo emibi yokugqoka iilensi ezingaphezu kweminyaka emi-5 zibonise ukuba abantu abanjalo banokuba nemiphumo enjengokwanda kwesikhumba se-cornea, ukuhla kwe-cornea kunye nokuphazamiseka okungenangqondo.Ngaphambi kokuchukumisa iliso leelensi zokudibanisa, kufuneka uhlambulule izandla zakho ngesepha, ezingenayo i-allergen and moisturizers.