Mwinamwake mwakumana ndi winawake yemwe amadzinenera kuti ali wakhungu mwamseri kapena mwinamwake wamvapo kapena wawerenga mawu kwinakwake. Ngakhale zingawoneke zachilendo kunena kuti thanzi "lovomerezeka," mwakhungu kwenikweni limatanthauzira kutanthawuza kwa khungu komwe kumayang'aniridwa ndi mabungwe a boma ndi a inshuwalansi a zaumoyo kuti adziwe ngati wina ali woyenerera phindu linalake.
Magalimoto Amagalimoto, omwe amafunikira njira yowunikira bwino momwe angayendetsere madalaivala kuti asunge misewu ndi misewu yathu kukhala otetezeka, komanso agwiritsire ntchito tanthauzoli.
Malingana ndi Centers for Disease Control and Prevention, anthu oposa 3.3 miliyoni oposa zaka 40 ali osawona mwalamulo kapena ali ndi masomphenya ochepa. Zomwe zimayambitsa khungu ndi zokhudzana ndi zaka zakubadwa ndipo zimaphatikizapo kuchepa kwa macular, cataracts, glaucoma, ndi matenda a shuga.
Mosiyana ndi omwe ali akhungu, kutanthauza kuti sangathe kuona kalikonse kalikonse, anthu ambiri omwe ali osawona mwalamulo amakhala ndi masomphenya, malinga ndi American Foundation for Blind.
Tanthauzo Lomveka
Kuti muwone ngati ndinu wakhungu, muyenera kuwona chimodzi mwa izi:
- Zowoneka bwino ndizo 20/200 kapena zoipitsitsa m'diso lomwe mungathe kuziwona. Kuwonetsa maonekedwe kumatanthawuza momwe munthu amayenera kukhalira pafupi ndi chinthu chomwe chiri mamita 20 kutali kuti muwone mwatsatanetsatane. Masomphenya achilendo amawerengedwa ngati 20/20. Ngati mutakhala ndi maonekedwe a 20/80, zikutanthawuza kuti mutha kuona zambiri kuchokera pa mamita 20 kuchokera mofanana ndi munthu amene ali ndi 20/20, kapena mwachibadwa, masomphenya amakhoza kuyang'ana kuchokera mamita 80 kutali. Munthu wakhungu mwakuthupi okhala ndi masomphenya 20/200 angafunike kukhala mamita 20 kuchokera ku chinthu kuti awone momwemo komanso wina yemwe ali ndi masomphenya 20/20 akhoza kuwona kuchokera mamita 200 kutali. Njira ina yowunika: Ngati wina yemwe ali ndi masomphenya 20/20 anali ataima pafupi ndi munthu yemwe ali wakhungu, kuti munthu wakhungu apenye chinthu chomwe chili kutali mamita 200 komanso munthu yemwe ali ndi masomphenya oyenera amayenera kufika pafupi pafupi mamita 20 kwa icho.
- Malo anu owonetserako sali madigiri oposa 20. Ngati munthu ali ndi gawo la madigiri 20 okha, amatha kuona zinthu zomwe ziri patsogolo pake popanda kusunthira maso kumbali koma sangathe kuona chilichonse kumbali zonse. Mosiyana ndi zimenezi, malo owona a madigiri 180 amaonedwa ngati abwino. Nthaŵi zina masewera olimbitsa thupi nthawi zambiri amatchedwa masomphenya . Zimapangitsa kuti n'zosatheka kuyendetsa galimoto bwinobwino.
Uphungu wamilandu umadaliranso ndi momwe maso angasinthidwe. Ngati magalasi kapena ma lens angapangitse masomphenya anu ku 20/200 kapena oipitsitsa, inu mukugwirizana ndi kutanthauzira khungu.
Kukhala ndi Khungu
Kutaya luso lowona kungakhale kowopsya, koma sikuyenera kuchepetsa luso lanu lokhala ndi moyo wanu. Pali zowonjezera zowonjezera ndi zopangira kwa anthu omwe ali osawona mwalamulo-kuchokera ku mayesero ndi owerengera oyankhula polemba makapu owonetsetsa ndi mapulogalamu apadera a pakompyuta.
Ngakhale Amazon amagulitsa zinthu zomwe zapangidwa kuti zikhale zakhungu. Ndithudi kutayika masomphenya anu kumatenga zambiri, koma sikuyenera kukulepheretsani kuchita zonse zomwe munachita mutatha kuchiwona.
Chitsime:
American Foundation for Blind, http://www.afb.org/info/blindness-statistics/key-definitions-of-statistical-terms/25, 2008
Maofesi a Kuletsa ndi Kuteteza Matenda. "Vision Health Initiative (VHI): Common Eye Disorders." Sept 29, 2015.