Makampani ambiri, kuphatikizapo angapo pa intaneti, amalengeza magalasi a pinhole. Makampaniwa nthawi zambiri amalankhula zowopsya ponena za ubwino wawo. Mwinamwake mwawerengapo kuti magalasi otsekemera akuwonetseratu masomphenya mwa kuchepetsa zolakwitsa ndikupitirizabe kusintha masomphenya. Komabe, palibe umboni wokwanira wokwaniritsa zonena izi.
Kodi Magalasi Amoto N'chiyani?
Magalasi a pinhole, omwe amatchedwanso magalasi otchedwa stenopeic, ali magalasi okhala ndi mapulogalamu okhala ndi timabowo ting'onoting'ono tomwe timadzaza pepala la pulasitiki.
Izi "pinholes" zimateteza kuwala kosawoneka kuchokera mu diso, motero zimawalepheretsa kusokoneza masomphenya anu. Ngakhale kuti izi sizikuthandizani kuti diso liziyenda bwino, limachepetsa kukula kwa mzere wa blur kumbuyo kwa retina , kotero kuti masomphenya omveka bwino angapezeke.
Momwe Amagwirira Ntchito
Tonse takhala tikukumana ndi zochitika izi mwa kudula maso athu kuti tiwone masomphenya. Chithunzi chimapanga chinthu chomwecho. Zimachepetsa kukula kwa kuwala kowala komwe kumafika pa retina. Mukhoza kuchita chinthu chomwechi mwa kupanga bwalo laling'ono ndi chala chanu cholozera ndikuyang'anitsitsa. Inde, ife omwe tiribe mavuto aakulu masomphenya sudzawona kusiyana kwakukulu. Komabe, anthu omwe amavala malalanje amatha kuwongolera, nthawi zina kusintha kwakukulu.
Ngati mutayesera magalasi a pinhole, mukhoza kuzindikira kuti mukuwona bwino.
Komabe, povala magalasi a pinhole, masomphenya amalepheretsedwa ndi malo akuda ozungulira pinholes. Zikuwoneka kuti pali ntchito yodziwikiratu bwino ya masomphenya poyerekeza ndi kuchuluka kwa kuwala. Ngati mupanga maenje aang'ono kwambiri, masomphenya angakhale abwino, koma kuchuluka kwa kuwala kumangokhala kokha kuti khalidwe la masomphenya ndi loopsa.
Ubwino
Magalasi amtunduwu amagwiritsidwa ntchito kwambiri ndi akatswiri othandizira maso ngati chida chozindikiritsira. Madokotala ochuluka akuyang'ana akugwiritsa ntchito mawonekedwe, chida chogwiritsira ntchito maso anu pamene mukuwerenga tchati cha diso. Pamapeto pake, mawonekedwe ndi olimba. Pamapeto ena, mawonekedwe ali ndi pinholes ambiri.
Nthawi zina madokotala amagwiritsa ntchito izi kuti azindikire mwakukhoza kwa masomphenya anu. Mwachitsanzo, ngati wina abwera kudzapita ku ofesi ya maulendo a maso ndipo amangowerenga kukula kwa malembo 20/70 pa tchati cha diso, dokotala adzadabwa kuti, "Kodi masomphenya a munthu uyu ndi 20/70 chifukwa cha matenda a maso? , kapena kodi mbali imodzi ya masomphenyawo adachepetsedwa chifukwa cha kuyang'ana pafupi? "Kuti mudziwe msanga ngati masomphenya a wodwalayo angakhoze kuwona bwino kuposa 20/70, adokotala akhoza kuchita" phokoso "la kuyang'ana bwino. pinholes ndipo amawerenga 20/25, ndiye zingakhale zoganiza kuti masomphenya ambiri otsika sali chifukwa cha matenda, komabe pali mtundu wina wa vuto la masomphenya losadziwika. Zingakhale zotetezeka kuganiza kuti matendawa akhoza kuchepetsa masomphenya okha pang'ono.
Dokotala sangakhale ndi nthawi yodziwa mtundu wa mankhwala omwe wodwalayo angafunikire, chifukwa munthuyo angalowemo kuti atenge kachilomboka.
Choncho, yesero la pinhole ndi njira yofulumira kwambiri kuti mudziwe zambiri zokhudza mkhalidwe wa diso la munthu. Magalasi amtunduwu amagwiritsidwa ntchito m'njira zina kuti azindikire kupotoka kwa khungu ndi matenda oopsa.
Amene Angagwiritse Ntchito Magalasi Amtundu
Kwa ambiri a ife, magalasi a pinhole sakuvomerezeka ndi anthu kuti azivala poyera komanso osagwira ntchito zokwanira tsiku ndi tsiku. Komabe, anthu ena adanena kuti amawakonda kuvala bifocal kapena trifocal. Magalasi a pinhole ndi otsika mtengo ndipo amawonetsa bwino maulendo onse, pamene zibocal zingakhale ndi malire pamtunda wina.
Anthu omwe ali ndi mankhwala apamwamba kwambiri komanso akuswa kapena kutayika magalasi awo angafune kusunga magalasi a pinhole kuzungulira.
Ngakhale kuti sakuchita bwino, adzakhala okwanira pazidzidzidzi. Odwala ndi aniridia angapindule ndi magalasi a pinhole. Aniridia amalongosola kupezeka kwathunthu kapena pang'ono kwa iris. Iris amachititsa kuti mphamvu yowunika ilowe m'diso. Pamene iris ilibe, wodwalayo akhoza kukhumudwa ndi kuwonetsera komwe magalasi nthawi zonse kapena magalasi a magalasi samathandiza. Magalasi otsekemera amachepetsa kuchuluka kwa kuwala komwe akubwera mkati ndi kutulutsa masomphenya omveka bwino.
Anthu ambiri sakayikira kuvala magalasi otsekemera, chifukwa sali okongola kwambiri. Tiyeneranso kukumbukira kuti magalasi a pinhole amachepetsa kuwala koma amachepetsanso masomphenya, choncho sakhala oyenera kuvala pamene akuyendetsa galimoto kapena akugwiritsa ntchito makina. Pafupifupi milandu yonse, njira zina zowonetsera zimakhala ndi masomphenya omveka bwino.
> Chitsime:
> Optometrists Association Australia. Ziwonetsero za Pinhole. Copyright 2008