chidziwitso cha magalasi owerengera

Ndi mandala ati omwe ali abwino powerengera magalasi?

1. Munthawi yanthawi zonse, magalasi owerengera ayenera kukhala achitsulo, chifukwa mafelemu owonera okhawo adzakhala abwino kuposa azinthu wamba, okhala ndi kukana kwamphamvu kwa dzimbiri komanso kukana kwamphamvu Kwamphamvu Kunena zambiri, zida za chimango zomwe zimagwiritsidwa ntchito sizingakhale. osankhidwa kuchokera ku zinthu zomwe zimakhala zosagwirizana ndi khungu, mwinamwake mudzakhala omasuka kwambiri mukamavala, makamaka magalasi owerengera amapangidwira okalamba, ndipo matupi a okalamba ndi aang'ono.Anthu ndi ofooka kwambiri, choncho posankha zipangizo, muyenera kusankha zipangizo zomwe sizingagwirizane ndi khungu, apo ayi zotsatira zake zidzakhala zoopsa.

2. Kuphatikiza apo, magalasi owerengera amapangidwa makamaka ndi utomoni.Izi zimatha kukana ultraviolet, infrared, ndi zinthu zina.Akavala, adzakhalanso ndi mlingo winawake wa kukana kutopa kwa maso anu, mwinamwake izo Pambuyo ntchito kwa kanthawi, izo zimatulutsa maganizo enaake kutopa, ndipo ngakhale khalidwe si zabwino, matenda ena akhoza kuchitika.Pambuyo pake, palibe njira yochitira izo.Chifukwa chake, mandala a utomoni ndiabwino kwambiri kuposa mandala wamba.Mndandanda wa refractive ndiwokwera kwambiri.

3. Posankha mandala, muyenera kuwonjezera filimu ku lens, kapena kugwiritsa ntchito lens aspherical.Kusankha kumeneku ndikwabwino kwambiri, kuposa magalasi wamba.Kuphatikiza apo, zitha kupangitsa kuti gawo lanu la masomphenya likhale lomveka bwino., Sipadzakhala zopinga powerenga kapena kuchita zinthu zina.Sipadzakhala chizungulire chamaganizo.

Momwe mungagwirizane ndi magalasi owerengera

1. Okalamba ena amafuna kupulumutsa mavuto ndikugula magalasi owerengera ku shopu ya kuwala kapena mumsewu.Izi ndi zolakwika.Chifukwa kuwerenga magalasi anagula mwachindunji nthawi zambiri ofanana digiri ya maso, koma aliyense maso ndi zinthu zosiyana monga myopia, hyperopia, astigmatism, ndi mlingo wa presbyopia maso a anthu ndithudi osiyana, ndi interpupillary mtunda ndi osiyana.Ngati mumavala mwachisawawa Zingayambitse kuwonongeka kwakukulu kwa maso, ndipo n'zosavuta kuwonjezera kupsinjika maganizo, kutopa, kusawona bwino ndi zizindikiro zina.Choyamba muyenera kupita ku chipatala cha ophthalmology kuti mufufuze mwatsatanetsatane kuti mupewe ng'ala, glaucoma, matenda a fundus ndi matenda ena a fundus, ndiyeno funsani dokotala kuti apeze refraction ndi kudziwa mtunda wa interpupillary;pangani lens ya presbyopia ndi digirii yowongolera masomphenya pafupi.

2. Okalamba ayese magalasi kwa kanthawi atawaika.Ndikoyeneranso kudziwa kuti nthawi yowerengera ndi yotalikirapo.Mutavala magalasi owerengera kwa nthawi yayitali, ngati mukuwona kuti magalasiwo sali oyenera, mutha kukana kuti muwone kusintha komwe kuli pafupi ndi masomphenya ndikusankhanso magalasi.Samalani diso bwino, apo ayi izo aggravate diso kupsyinjika ndi kufulumizitsa presbyopia.

3. Mlingo wa presbyopia m'maso mwa okalamba siwokhazikika.Akayika magalasi, maso awo amayenera kuyang'aniridwa pafupipafupi zaka ziwiri kapena zitatu zilizonse;mlingo wa magalasi ayenera kusinthidwa nthawi malinga ndi kusintha kwa masomphenya.Ngati palibe zizindikiro monga kusokoneza mafonti, chizungulire ndi kusanza, zikutanthauza kuti magalasi owerengera ndi oyenera;ngati maso atopa atatha kuwerenga kwa nthawi yayitali, zikutanthauza kuti mphamvu iyenera kusinthidwa.

4. Posankha chimango chowonera, muyenera kumvetsera mtundu womwe mumakonda.Ikhoza kusonyeza kunyada ndi ulemu wa okalamba limodzinso ndi mkhalidwe wa okalamba.Pali mitundu yambiri ya chimango, monga: mtundu wa utawaleza;mtundu wa khofi;ngale yoyera ndi yoyera.Chojambulacho chiyenera kusankhidwa ndi kulimba bwino;ili ndi mphamvu zokana kupindika.Maonekedwe a kulemera kopepuka angaganizidwe ndi okalamba malinga ndi zomwe amakonda.

Kusamvetsetsana ndi magalasi owerengera

1. Sikoyenera kukhala ndi chithunzi chotsika mtengo komanso chomveka bwino.Magalasi owerengera pamsewu nthawi zambiri amakhala ndi maso ofanana komanso mtunda wokhazikika wa interpupillary.Komabe, okalamba ambiri ali ndi zolakwika zosokoneza monga myopia, hyperopia kapena astigmatism.Komanso, mlingo wa ukalamba wa maso ndi osiyana, ndi interpupillary mtunda ndi osiyana.Ngati mumavala magalasi mwachisawawa, sizidzangokhalira kukwaniritsa mawonekedwe abwino kwa okalamba, koma zidzayambitsa kusokonezeka kwa maso ndi kutopa kwa maso.

2. Lolani magalasi opanda optometry kapena kuyendera.Musanavale magalasi owerengera, pitani kuchipatala kuti mukayezedwe mwatsatanetsatane, kuphatikizapo masomphenya akutali, pafupi ndi maso, kuthamanga kwa intraocular ndi fundus.Cataracts, glaucoma, ndi matenda ena a fundus sayenera kupewedwa pamaso pa optometry isanadziwe digirii.

3. Magalasi owerengera atavala mpaka kumapeto, mlingo wa presbyopia udzawonjezeka ndi kukula kwa msinkhu.Pamene kuwerenga magalasi si abwino, ayenera m'malo mu nthawi, apo ayi adzabweretsa zambiri zosokoneza kwa moyo wa okalamba, ndipo imathandizira mlingo wa presbyopia.Nthawi yomweyo, magalasi a presbyopic amakhala ndi moyo wocheperako.Ngati atagwiritsidwa ntchito kwa nthawi yayitali, magalasiwo amavutika ndi zokopa ndi ukalamba, zomwe zimachepetsa kuchuluka kwa kuwala komwe kumadutsa ndikukhudza mawonekedwe azithunzi za magalasi.

4. Galasi yokulirapo imalowa m'malo mwa presbyopia.Nthawi zambiri okalamba amagwiritsa ntchito magalasi okulirapo m'malo mowerengera.Galasi lokulitsa lopindidwa m'magalasi owerengera ndi lofanana ndi madigiri 1000-2000.Kwa nthawi yayitali kuti "mulowetse" maso, zidzakhala zovuta kupeza digiri yoyenera pamene magalasi owerengera akufanana.Kuvala magalasi owerengera kungagwiritsidwe ntchito poyang'ana zinthu zapafupi.Kuyenda ndi magalasi owerengera kapena kuyang'ana patali kumapangitsa kuti masomphenyawo asawoneke bwino komanso azungulire.Kuvala magalasi owerengera kuyenera kuyang'anitsitsa mosamala, chifukwa kugula magalasi owerengera kungayambitse kusamva kuvala komanso kuwonongeka kwa presbyopia chifukwa cha zolakwika.