Photochromic Bifocal Lens
Presbyopia
Anthu akamakula zaka 40 kapena kuposerapo, maso athu satha kusinthasintha. Zimakhala zovuta kwa ife kusintha pakati pa zinthu zakutali ndi zinthu zotseka, monga pakati pa kuyendetsa galimoto ndi kuwerenga ntchito. Ndipo vuto la maso limeneli limatchedwa presbyopia.
Photochromic Bifocal Lens
Magalasi owonera amodzi amagwiritsidwa ntchito kukulitsa chidwi chanu pazithunzi zapafupi kapena zakutali. Komabe, sangagwiritsidwe ntchito kukulitsa masomphenya anu onse awiri. Magalasi a Bifocal amakulitsa kuwona kwanu kwa zithunzi zapafupi ndi zakutali.
Magalasi a Bifocal amakhala ndi malangizo awiri. Gawo laling'ono m'munsi mwa lens lili ndi mphamvu yokonza masomphenya anu apafupi. Ma lens ena nthawi zambiri amakhala owonera patali.
Magalasi a photochromic bifocal amadetsedwa ngati galasi ladzuwa mukamatuluka panja. Amateteza maso anu ku kuwala kowala ndi kuwala kwa UV, kukulolani kuti muwerenge ndi kuwona bwino nthawi imodzi. Magalasi adzawonekeranso m'nyumba mkati mwa mphindi zingapo. Mutha kusangalala ndi zochitika zapakhomo popanda kuzichotsa.
Mitundu Yopezeka ya Magalasi a Photochromic Bifocal
Monga mukudziwira kuti ma bifocals ali ndi malangizo awiri pagawo limodzi la mandala, gawo lapafupi la mankhwala limatchedwa "Segment". Pali mitundu itatu ya ma bifocals kutengera mawonekedwe a gawolo.
Photochromic flat-top bifocal lens imatchedwanso photochromic D-seg kapena straight-top. ili ndi "mzere" wowoneka ndipo ndi mwayi waukulu ndikupereka mphamvu ziwiri zosiyana. Mzerewu ndi wodziwikiratu chifukwa kusintha kwa mphamvu ndi nthawi yomweyo. Ndi mwayi, zimakupatsani malo owerengera ambiri osayang'ana patali kwambiri.
Mzere wozungulira wa photochromic pamwamba siwodziwikiratu ngati womwe uli pamwamba pa photochromic. Zikavala, zimakonda kukhala zosawonekera kwambiri. Zimagwira ntchito mofanana ndi pamwamba pa photochromic lathyathyathya, koma wodwala ayenera kuyang'ana pansi pa lens kuti apeze m'lifupi mwake chifukwa cha mawonekedwe a lens.
Photochromic blended ndi mapangidwe apamwamba ozungulira pomwe mizere yapangidwa kuti isawonekere pophatikiza madera osiyanasiyana pakati pa mphamvu ziwirizi. Ubwino wake ndi wodzikongoletsera koma umapanga zosokoneza zowoneka.
