Kodi mungasankhire bwanji njira yopita patsogolo ya lens?

Kuyika kwa mandala opita patsogolo nthawi zonse kwakhala vuto lalikulu mumakampani a optometry.Chifukwa chomwe lens yopita patsogolo imakhala yosiyana ndi lens yowala imodzi ndi yakuti magalasi opita patsogolo amatha kuthetsa vuto la anthu akale amatha kuona bwino kuchokera kutali, pakati ndi pafupi, zomwe ziri zabwino kwambiri, zokongola komanso zimatha kuphimba zaka.Ndiye n'chifukwa chiyani mankhwala "zabwino" amenewa ali ndi mlingo wolowera a 1.4% okha ku China, koma oposa 48% m'mayiko otukuka?Ndi chifukwa cha mtengo?Mwachiwonekere ayi, xiaobian amakhulupirira kuti kupambana kwa kufananitsa kwapang'onopang'ono kumagwirizana kwambiri ndi.

Kupambana kwa kuyika kwapang'onopang'ono kumatengera zinthu zambiri, monga ziyembekezo za kasitomala, kukokomeza kwazinthu, kulondola kwa data (mankhwala a optometry, mtunda wa ophunzira, kutalika kwa wophunzira, ADD, kusankha tchanelo), kusankha magalasi, ndi zina zambiri. kulimbana ndi kusankha njira.Lero, Xiaobian akugawana nanu momwe mungasankhire njira yopita patsogolo.

Titakambirana zambiri ndikufunsa madokotala ena odziwa bwino maso, onse adavomereza kuti tisamafotokozere mtundu wa njira yoyenera makasitomala kuchokera pa "kutalika kwa chimango", koma tiyenera kuganizira izi:

1. Zaka za kasitomala

Nthawi zambiri, azaka zapakati ndi achikulire osakwana zaka 55 amatha kusankha njira zazitali komanso zazifupi, chifukwa THE ADD si yayikulu kwambiri, komanso kusinthasintha kuli bwino.Ngati ADD ndi yayikulu kuposa +2.00, ndi bwino kusankha njira yayitali.

2. Zolowera kuwerenga kaimidwe

Makasitomala amavala magalasi kuti awone zinthu, ngati akuzolowera kusuntha maso, osazolowera kusuntha mutu, tikulimbikitsidwa kuti njira zazitali komanso zazifupi zitha kukhala.Ngati mumakonda kusuntha mutu, osagwiritsidwa ntchito kusuntha maso, ndi bwino kusankha njira yayifupi.

3. Kusintha kwamakasitomala

Ngati kusinthasintha kuli kolimba, njira zazitali komanso zazifupi zitha kukhala.Ngati kusinthasintha kuli kocheperako, tikulimbikitsidwa kusankha njira yayifupi

4. Wonjezerani nambala ya photometric (ADD)

ADD mkati mwa + 2.00d, njira zonse zazitali ndi zazifupi ndizovomerezeka;Ngati ADD ndi yayikulu kuposa + 2.00d, sankhani njira yayitali

5. Mzere wolunjika kutalika kwa chimango

Sankhani njira yayifupi yamafelemu ang'onoang'ono (28-32mm) ndi njira yayitali yamafelemu akulu (32-35mm).Sitikulimbikitsidwa kusankha mafelemu okhala ndi kutalika kwa mzere wowongoka mkati mwa 26mm kapena pamwamba pa 38mm, makamaka ngati mafelemu okhala ndi kukula kwakukulu amasankhidwa panjira zazifupi, kuti mupewe kusapeza bwino ndi madandaulo.

6. Kugwetsa diso

Posankha mayendedwe, tiyeneranso kuganizira kutsika kwa diso la kasitomala ndi mavuto ena.Mwachidziwitso, akasitomala akamakula, kutsika kumacheperachepera, ndipo kukula kwa digiri yaposachedwa ya ADD kumawonjezeka ndi kukula kwa zaka.

Choncho, ngakhale makasitomala okalamba ali ndi ADD yapamwamba, koma mphamvu yochepetsetsa ya maso imapezeka kuti ndi yosakwanira kapena yosakhalitsa pambuyo pofufuza, zizindikiro za kulephera kufika pamalo abwino pafupi ndi kuwala kwapafupi ndikuwona mdima wapafupi. zimachitika ngati asankha njira yayitali kapena njira yokhazikika.Pankhaniyi, tikulimbikitsidwanso kusankha njira yayifupi.


Nthawi yotumiza: Aug-04-2021