Opaleshoni ya ng'ala ndi opaleshoni yomwe imachitika kwambiri padziko lonse lapansi komanso ku France, ndipo pafupifupi 700 amachitidwa chaka chilichonse. Ndi ntchito yofulumira komanso yochepa yomwe imabwezeretsa masomphenya poyika implant yochita kupanga m'maso.

Opaleshoni ya ng'ala ndi opaleshoni yochotsa lens m'diso lomwe lakhudzidwa ndi matendawa ndipo, nthawi zambiri, m'malo mwake ndi lens yopangira.

Nthawi zambiri, lens (lens ya diso) imakhala yowoneka bwino komanso yowonekera. Lens ili motero imalola kuwala kolowera ku retina, komwe kumagwira ntchito ngati chophimba ndikulola kuwona. Mng'ala ikayamba, disololo limakhala loonekera ndipo izi zimakhudza maso. Ndi matenda ofala omwe amakhudza anthu oposa mmodzi mwa anthu asanu kuyambira zaka 65 ndipo pafupifupi awiri mwa atatu atatha zaka 85.

Ngati matendawa apita patsogolo kwambiri ndipo amapangitsa moyo wa tsiku ndi tsiku ndi zochitika za tsiku ndi tsiku kukhala zovuta, dokotala angakupatseni opaleshoni. Opaleshoni ya ng'ala ndiyo njira yokhayo yobwezeretsera bwino masomphenya pamene matendawa ayamba.

Opaleshoni ya ng'ala imachitidwa ndi ophthalmologist. Ndi njira yofulumira yomwe nthawi zambiri imakhala mphindi 15 mpaka 30 pansi pa anesthesia wamba, zomwe zikutanthauza kuti wodwalayo ali maso panthawi ya ndondomekoyi.

Panthawi ya opaleshoni, dokotalayo amadula pang'ono (kudula) m'maso kuti lens yomwe yakhudzidwa ichotsedwe. Akaivula, amaika disolo lapulasitiki laling'ono lotchedwa intraocular implant.

Ngati maso onse akhudzidwa, maopaleshoni awiri osiyana adzafunika ndipo adzachitidwa masabata angapo motalikirana. Izi zimapangitsa kuti athe kuonanso bwino m'diso loyamba lomwe lachitidwa opaleshoni isanayambe.

Nthawi zina, dokotala akhoza kupereka opaleshoni yothandizira laser. Izi ndizochitika, mwachitsanzo, pamene akufuna kukonza astigmatism nthawi yomweyo kuchotsa ng'ala. Pankhaniyi, kudulidwa kwa thumba lomwe lili ndi mandala kumapangidwa ndi laser.

Nthawi zambiri, opaleshoni ya ng'ala ndi njira yakunja. Ndiko kuti, wodwalayo amatha kupita kunyumba masana. Komabe, ndi bwino kulinganiza kuti munthu wotsagana naye apezekepo chifukwa diso lochitidwa opaleshoni limakhala lotchingidwa ndi bandeji ndipo zimenezi zingasokoneze masomphenya onse malinga ndi mmene diso lina lilili. Nthawi zambiri, opaleshoni amalola bwino masomphenya kuchira tsiku pambuyo opaleshoni kapena pasanathe masiku angapo. Wodwalayo amatha kuyambiranso moyo wake watsiku ndi tsiku.

Pambuyo pa opaleshoni, lens yochita kupanga imakhala mbali ya diso ndipo sichifuna chithandizo chowonjezera kapena chisamaliro chapadera. Komabe, zikutheka kuti mudzakhala ndi vuto la maso mutatha ndondomekoyi ndipo chithandizo cham'deralo chotsutsana ndi kutupa chidzafunika kwa milungu ingapo.

Zovuta pambuyo pa opaleshoni ndizosowa. Ngati mukumva kupweteka kwakukulu kapena kuchepa kwa masomphenya m'masiku ndi masabata otsatirawa, muyenera kulankhulana ndi dokotala kapena kupita kuchipatala.

Kuopsa kwa zovuta kumakhala kwakukulu ngati pali matenda ena a maso kapena matenda aakulu, monga glaucoma kapena macular degeneration. Pankhaniyi, ng'ala opaleshoni mwina kusintha masomphenya.