Ndeapi lenzi akakodzera vana nevechiri kuyaruka?

Sezvo myopia iri kuwedzera kubata vanhu vadiki, dzakasiyana siyana dzekusarudza lens dzevana dzakawedzera, zvichiita kuti vabereki vazhinji varemerwe. Sezvo zvinodiwa zvemaziso evana zvakanyanya kuoma kupfuura vanhu vakuru ', izvoLenzivakakodzera zviri nani kuvana nevechiri kuyaruka? Ndezvipi zvinhu zvinokosha zvinofanira kutariswa nevabereki pakusarudza malenzi evana vavo? Heino tsananguro pfupi yezvakasiyana zvinhu zvinowanzoshandiswa mumalenzi.

Magirazi egirazi
Yakanyanya kugadzirwa kubva kugirazi remaziso, chinhu ichi chakashandiswa kare mumamera lenzi.
Zvakanakira: Inotengeka, kuoma kwepamusoro pepamusoro, kusakwenya, kutapurirana kwechiedza, kugadzikana kwemakemikari zvimiro, uye yakakwirira refractive index.
Kushomeka: Huremu huremu uye hutete nyore nyore, zvinokanganisa kugadzikana. Magirazi egirazi haawanzo kushandiswa nhasi.

ResinLenzi
Yakagadzirwa kubva ku phenolic resin kuburikidza nemakemikari synthesis uye polishing.
Zvakanakira: Huremu (density: 0.83–1.5 g/cm³ vs. optical glass's 2.27–5.95), isingapwanyike, isingapise kupisa, inotapurirana chiedza chakakwirira, uye inochinjika kumagadzirirwo akasarudzika (semuenzaniso, aspheric lenzi). Aya mabhenefiti anoita resin lenzi sarudzo huru.
Kuperevedza: Kuwedzera kupisa kwekuwedzera coefficient, kunowanzoita deformation, kunokanganisa optical performance.

Polycarbonate (PC) Lenzi
Malenzi ePC anozivikanwawo se "space lenses" kana "cosmic lenses". Yakagadzirwa kubva kune thermoplastic polycarbonate - iyo yakareruka lens zvinhu zviripo.
Zvakanakira: Yakakwira refractive index, 100% UV dziviriro, yellowing-inodzivirira kwemakore 3-5. Kana akagadzirwa zvakanaka, ma lenzi ePC ane 37% akareruka uye 12 × mamwe maitiro-anoshingirira pane akajairwa resin lenzi.
Kushomeka: Zvinodhura zvakati.

Naironi Lenzi
Yakagadzirwa kubva kupenyera polyamide (itsva polyamide musiyano), inowanzoshandiswa mune zvemitambo zvipfeko uye zveumbozha magirazi ezuva.
Zvakanakira: Yakakwira elasticity, kukanganisa kupikisa, uye yemhando yepamusoro yemaziso.
Kushomeka: Inodhura uye isina kusimba abrasion kuramba.

Mafungiro Anokosha Kune Vana
Malensi emhando yepamusoro akakosha pakukura kwekuona, sezvo masisitimu evana erefractive achiri kukura. Dzivisa marenzi emhando yakaderera chete kuchengetedza mari, kunyangwe vana vari kushanda.

• Replacement Cycle: Mitemo yevana inoshanduka nokukurumidza. Ophthalmologists vanokurudzira kuongororwa kwemaziso kwekaviri / gore negore (kuona, refraction, intraocular pressure, fundus checks). Magirazi anofanira kutsiviwa kana mushonga ukachinja ne ≥50 madhigirii kana kana mafuremu/lenzi paramita (semuenzaniso, pupillary distance) isingachakwane. Nokudaro, lenzi dzinodhura hazvidikanwi.

• Inokurudzirwa Sarudzo: Uchipihwa mararamiro anoshingaira evana, sarudza anotengeka resin lenzi kana maPC lenzi anodhura zvishoma. Ose ari maviri anopa kusimba kusimba uye kuputsa kuramba kudzivirira kudzivirira kukuvara kwemaziso.

Zvevachiri Kuyaruka
Magirazi evechiri kuyaruka anotsungirira kushandiswa kwakanyanya, saka tungamira kuramba kukwenya, yakakwira refractive index, uye zvinhu zvisingaremi (resin kana PC lenses inoramba yakanaka).

• Specialized Options: Funga anti-kuneta lenses (ine + 0.50D kusvika +1.00D yekuwedzera munzvimbo yepedyo-yekuona) kana myopia-control lenses (peripheral defocus design) kuderedza kushushikana kwemaziso uye kunonoka axial elongation / kufambira mberi. Bvunza nyanzvi kuti uwane nhungamiro.

Mamwe Mazano

• Simbisa rezinesi rekugadzira chigadzirwa chemugadziri.

• Ita shuwa kuti midziyo yeOptometry uye midziyo yekuyedza ine zvitupa zvetifiketi.

• Simbisa kuti optometrist uye matekiniki vane zvitupa zvinoshanda.