Ngakhale magalasi wamba amatha kukwaniritsa zosowa za People's Daily zogwiritsa ntchito maso, koma ndi kuchuluka kwa anthu omwe amawona pafupi, malinga ndi zochitika zosiyanasiyana zogwiritsiridwa ntchito, opanga ma lens apanga magalasi ogwira ntchito omwe amagwiritsidwa ntchito kwambiri.
Mwachitsanzo, magalasi oletsa buluu a mafoni am'manja ndi makompyuta, magalasi owoneka bwino a dzuwa panja m'chilimwe, magalasi oyendetsa usiku pakuyendetsa pafupipafupi usiku, ndi magalasi opita patsogolo a anthu enaake...
Kodi ama lens opitilira ma multifocal?
Kwenikweni, zitha kudziwika kuti ndi mtundu wa lens wopangidwa ndi magawo angapo komanso magawo osiyanasiyana.
Nthawi zambiri, pali madera anayi: kutali, pafupi, malo opita patsogolo, malo opindika kumanzere ndi kumanja (omwe amatchedwanso peripheral area kapena malo osamveka).
Magalasi ali ndi zolembera zosawoneka komanso zolemba zazikulu ~
Magalasi opita patsogolondi oyenera anthu
Pantchito yeniyeni, njira zodziwira ngati munthu ndi woyenera kuvala magalasi opita patsogolo ayenera kutsimikiziridwa malinga ndi zosowa za makasitomala.Pambuyo powona ngati makasitomalawo ndi oyenera anthu, ogwira ntchito athu ayenera kuwayang'anira molondola kuti atsimikizire kuti ali ndi mankhwala oyenera a magalasi.
Zizindikiro zamagalasi opita patsogolo
1. Ndizovuta kuwona pafupi, choncho magalasi owerengera amafunika, kuyembekezera kupeŵa vuto lomwe limabwera chifukwa cha kusintha kwa magalasi chifukwa cha anthu omwe amawona patali.
2. Ovala omwe sakhutira ndi maonekedwe a bifocals kapena triocals.
3. Anthu azaka za m'ma 40 ndi 50 omwe angolowa kumene mu "presbyopia".
4. Yang'anani kutali ndi pafupi ndi anthu omwe amasinthasintha pafupipafupi: aphunzitsi, okamba nkhani, oyang'anira.
5. Olankhula ndi anthu (mwachitsanzo, atsogoleri a boma amavala ma lens opitilira patsogolo).
Contraindications wamagalasi opita patsogolo
1. Nthawi yayitali kuti muwone antchito apamtima: monga makompyuta kwambiri, ojambula zithunzi, ojambula zithunzi, zojambula zojambula zomangamanga;
2. Ntchito yapadera: monga madokotala a mano, oyang'anira mabuku, (chifukwa cha maubwenzi ogwira ntchito, nthawi zambiri amagwiritsa ntchito pamwamba pa lens kuti awone pafupi) oyendetsa ndege, amalinyero (gwiritsani ntchito pamwamba pa lens kuti muwone pafupi) kapena gwiritsani ntchito nsonga yapamwamba ya diso. mandala kuti awone anthu omwe akufuna, kuyenda kwakukulu, masewera olimbitsa thupi;
3. Odwala omwe ali ndi anisometropia: maso onse ndi anisometropia> 2.00D, digirii yogwira mtima> 2.00D, makamaka axial asymmetry;
4.ADD kuposa 2.50D (" pafupi ndi ntchito + 2.50d ", kusonyeza kuti maso apanga presbyopia, muyenera kuwonjezera magalasi owerengera a madigiri 250.);
5. Zaka zoposa 60 (malinga ndi thanzi);
6. Iwo omwe nthawi zambiri amavala kuwala kawiri kale (chifukwa cha malo ogwiritsira ntchito pafupi ndi kuwala kwapawiri ndi malo ochepetsetsa pafupi ndi galasi lopita patsogolo, padzakhala kusasinthika);
7. Odwala ena omwe ali ndi matenda a maso (glaucoma, cataract), strabismus, digiri ndipamwamba kwambiri sayenera kuvala;
8. Matenda oyenda: amatanthauza kuphatikiza kwa chizungulire ndi chizungulire chifukwa cha kusagwira bwino ntchito mofulumirirapo kapena kuyenda mokhazikika, monga matenda oyenda, kudwala panyanja, ndi zina zambiri;Komanso, odwala matenda oopsa ndi arteriosclerosis, pamene matenda awo si bwino ankalamulira, nthawi zambiri kuonekera chifukwa chosakwanira cerebrovascular magazi chifukwa cha chizungulire, nthawi zina kungayambitse vasospasm, ndi mutu;
9. Anthu omwe amavutika kuti azolowere magalasi;
Kiyi kumagalasi opita patsogolo: Optometry yolondola
Kuoneratu zam’tsogolo n’kosazama, ndipo kuona patali n’kozama.
Chifukwa cha kukhazikika kwa ma lens omwe amapita patsogolo pang'onopang'ono poyerekeza ndi ma lens a kuwala kamodzi, ma lens opita patsogolo a multifocal sayenera kukhutiritsa masomphenya abwino akutali, komanso kuganizira zotsatira zenizeni pafupi ndi dera lowala kuti apange mandala onse opita patsogolo. omasuka kuvala.
Panthawiyi, "kulondola kwakutali" kuyenera kukhazikitsidwa pakugwiritsa ntchito bwino kuwala kwapafupi, kotero kuwala kwa myopia kwa kuwala kwakutali kuyenera kukhala "kwakuya", pamene kuwala kwa myopia kwa kuwala kwakutali kuyenera kukhala "osazama kwambiri" , mwinamwake "chachikulu kwambiri" cha ADD chidzapangitsa kuti chitonthozo cha lens chichepetse.
Pazifukwa zowonetsetsa kuti masomphenya akutali ndi omveka bwino komanso omasuka mkati mwazogwiritsidwa ntchito zenizeni, kuwala kwakutali kwa lens yopita patsogolo kuyenera kukhala kozama ndipo kuwala kwakutali kuyenera kukhala kozama komanso kozama.
Kusankha ndi kusintha kwalens patsogolomafelemu
Progressive multifocus ndiyofunikira kwambiri pakusankha chimango choyenera ndikusintha.Chisamaliro chapadera chiyenera kuperekedwa ku mfundo zotsatirazi:
Kukhazikika kwa chimango ndikwabwino, mogwirizana ndi mawonekedwe a nkhope yamakasitomala, nthawi zambiri sayenera kusankha mapindikidwe osavuta a chimango chopanda pake, kuwonetsetsa kuti kutsogolo kokhotakhota kwa chimango ndi kupindika kwapamphumi kwa wovala kumakhala kofanana.
Chojambulacho chiyenera kukhala ndi msinkhu wokwanira wokhazikika, womwe uyenera kusankhidwa molingana ndi mtundu wa lens wosankhidwa.Kupanda kutero, ndikosavuta kudula gawo lapafupi la mawonekedwe mukamadula m'mphepete:
Malo apakati a mphuno ya lens adzakhala okwanira kuti agwirizane ndi dera la gradient;Ray-oletsa chimango ndi mafelemu ena ndi kupendekera lalikulu pansi mkati mwa mphuno pafupi ndi munda wa masomphenya ndi ang'onoang'ono kuposa chimango ambiri, kotero si oyenera pang'onopang'ono galasi.
Mtunda wa diso la lens chimango (mtunda pakati pa vertex posterior wa lens ndi anterior vertex a cornea, amatchedwanso vertex mtunda) ayenera kukhala ang'onoang'ono momwe angathere popanda kukhudza nsidze.
Sinthani mbali yakutsogolo ya chimango molingana ndi mawonekedwe a nkhope ya wovalayo (pamene chimango chayikidwa, njira yolumikizirana pakati pa ndege ndi ndege yowongoka ya mphete yagalasi nthawi zambiri imakhala madigiri 10-15, ngati digiriyo ndi yayikulu kwambiri, mbali yakutsogolo ikhoza kusinthidwa kukhala yokulirapo), kuti igwirizane ndi chimango ndi nkhope momwe mungathere, kuti zithandizire kukhalabe ndi gawo lowoneka bwino pang'onopang'ono.
Nthawi yotumiza: Dec-05-2022