Monovision ndi dzina lopangidwa ndi luso ndi sayansi ya makina othandizira oyenerera pa wodwala amene wapanga mankhwala a presbyopia. Presbyopia ndimasintha omwe sungapezeke m'masomphenya omwe nthawi zambiri amawoneka ali ndi zaka zoposa 40, zomwe zimayambitsa zovuta kuwerenga zochepazo ndikuyang'ana pafupi ndi zinthu. Anthu ambiri amadziwa kuwerenga magalasi, zibocals kapena mapulogalamu apamwamba monga njira zothetsera presbyopia .
Zochepa zochepa, komabe masomphenya akukonza njira ya "monovision." Pogwiritsa ntchito monovision, diso limodzi likugwirizana ndi lens kutali (ngati kuli kofunika) ndipo diso lina likugwirizana ndi lens pafupi, kupereka masomphenya omveka kwa kutalika masomphenya ndi pafupi.
Kodi Monovision Amagwira Ntchito Bwanji?
Poyamba, monovision ikuwoneka yodabwitsa kwambiri. Koma zachilendo momwe zikuwonekera, anthu ambiri amalandira zotsatira zodabwitsa. Nazi momwe zimagwirira ntchito:
Tonse tili ndi diso lalikulu komanso diso losalamulirika. (Mukhoza kuzindikira mwamsanga kuyang'ana kwa diso ndi maso ofulumira omwe akuyesa kuyang'ana .) Pamene tiyang'ana patali, tikugwiritsa ntchito masomphenya kuchokera ku diso loposa momwe tikugwiritsira ntchito diso losalamulirika. Diso losalamulirika limagwiransobe ntchito, koma diso loyang'ana maso limatengedwa. Ubongo wathu umapereka chidwi chenicheni pa zowonetserako zomwe zimapezeka kuchokera ku diso lopambana. Kotero ngati diso losalamulirika liri loyenerera ndi lens pafupi ndi mphamvu kuti yothetse masomphenya athu pafupi, kutalika kwake masomphenya sikudzasokonezeka kwambiri.
Monovision imaphatikizapo kuvala lens pa diso lomwe silikuwongolera pafupi ndi masomphenya, ndi diso lapamwamba pa diso (ngati kuli kofunika) kukonza kutali.
Monovision imagwira ntchito chifukwa ubongo umanyengerera mu kuganiza kuti lens yolumikizana kwenikweni ndi gawo la diso lachirengedwe. (Chifukwa cha ichi, monovision siigwira ntchito m'gulu la magalasi a maso ambiri a ife.) Ngakhale zimatenga sabata kapena 2 kuti zigwirizane ndi monovision, zimagunda kuwerenga magalasi nthawi iliyonse yomwe mukufuna kuwerenga.
Monovision yamakono
Ndi makompyuta a monovision, munthu adzatha kuona patali pa kompyuta. Anthu ambiri omwe amagwiritsa ntchito makompyuta tsiku ndi tsiku amasangalala ndi khalidwe lokonzekera, ngakhale kuti magalasi akuthabe. Mafilimu a pulogalamu yamakono sakuvomerezedwa kwa anthu omwe amakonda kuwerenga zambiri.
Monovision yosinthidwa
Mtundu woterewu umakhala wodwala wodwalayo wothandizana ndi diso lopanda mphamvu. Lens ili imagwiritsidwa ntchito poyang'ana zinthu zomwe ziri pafupi. Kuzama kwa malingaliro ndi masomphenya a kutalika amapezeka mwa kuvala lens limodzi la masomphenya pambali ina.
Monovision LASIK
Odwala omwe amasangalala ndi monovision ndi makina awo amatha kukhala ndi mwayi wopindula ndi monovision LASIK. Monovision LASIK imafuna kukwaniritsa malingaliro omwewo omwe mumalandira kuchokera ku makina ojambulira a monovision , popanda malingaliro amodzi m'maso mwanu. Mu monovision LASIK , diso limodzi limakonzedwa kutali ndi lina pafupi. Opaleshoni ya LASIK imayendetsedwa mwachindunji pa cornea. Kubwezeretsa ndi machiritso nthawi zambiri. Kusintha kwa masomphenya kumawonekera nthawi yomweyo. Ngati mukuganiza kuti mungayese kuyesa LASIK, ndibwino kuti mutsimikizire kuti muli omasuka kuvala malonda amodzi.
Kuchita opaleshoni ndi kudzipereka kwakukulu ndipo zotsatira zake ndi zovuta kusintha.
Mawu Ochokera
Ngakhale monovision siigwira ntchito kwa aliyense, ndi njira yabwino kwa anthu omwe ali ndi presbyopia. Monovision ikhoza kukuthandizani kuti mukwaniritse masomphenya abwino, ogwira ntchito patali ndi pafupi. Koma si masomphenya "angwiro", komatu. Nthawi zambiri pamakhala kusamvana pakati pa chidziwitso chapatali kapena pafupi kulola odwala kuti azitsatira bwinobwino monovision pomwe panthawi imodzimodziyo akukonzekera bwino masomphenya. Chotsatira chake, odwala omwe amafunika kuwoneka bwino kwambiri mawonedwe pamtunda kapena pafupi sangakhale abwino kwambiri pa monovision.
Ndipotu, anthu omwe sanayambe kuvala magalasi samachita bwino ndi monovoni poyerekeza ndi anthu omwe ali ndi magalasi ovala kale. Komanso, monovision ingachepetse kuzindikira kwakukulu , komwe kungakhudze maseĊµera kapena ntchito. Njira yabwino yodziwira ngati monovision ikhoza kukuthandizani ndi kufunsa dokotala wanu maso. Ngati monovision si yoyenera kwa inu, dokotala wanu maso angapangire malingaliro othandizira a multifocal (multifocal).
Gwero: Association of American Optometric Association, Monovision. 3 Nov 2007.