Uko tugenda dusaza, lens, sisitemu yo kwibandaho y'amaso yacu, itangira gukomera buhoro buhoro no gutakaza ubushobozi bwayo bwo kwihuta, kandi imbaraga zayo zo kuyihindura zitangira kugabanuka buhoro buhoro, biganisha ku kintu gisanzwe cyo mu mubiri: presbyopia. Niba ahantu hafi hari santimetero zirenga 30, kandi ibintu bitagaragara neza muri santimetero 30, kandi ukaba ukeneye kohereza kure kugira ngo urebe neza, ugomba gutekereza kwambara indorerwamo za presbyopic.
Kuri iyi nshuro twiga ku bijyanye n'indorerwamo za multifocal zigenda zihinduka muri presbyopia optique. Iyo presbyopia ibaye, birambirana cyane kureba, kuko ijisho ry'umuntu riba riri mu mimerere yo kuruhuka iyo areba kure, kandi hakenewe kwibanda ku macro iyo areba hafi. Ariko, imbaraga zo guhindura indorerwamo za presbyopic ziba nke, kandi kwibanda ku kintu ntabwo bikomeye bihagije iyo areba hafi, ibyo bikazongera umutwaro ku maso. , ibimenyetso nko kubabara amaso, kutabona neza, no kuribwa umutwe ni ibimenyetso bisanzwe.
Ihame ry'indorerwamo za multifocal zigenda zihinduka
Ihame ry’imiterere y’amalenzi menshi ni ugukora ahantu henshi hakomeza kure, hagati na hafi y’amashusho kuri lenzi imwe. Muri rusange, igice cyo hejuru cy’amalenzi ni icy’imbaraga zo kugarura kure, igice cyo hasi ni icy’imbaraga zo kugarura kure, naho igice cyo hagati cy’amalenzi ni agace k’ubugari gashyira hejuru gahoro gahoro gashyira imbaraga zo kugarura kure. Ahantu hafi y’amashusho hagaragara amalenzi menshi menshi ni mm 10-16 munsi y’aha hantu henshi hagaragara amajwi na mm 2-2.5 mu mazuru. Ni ngombwa kumenya ko hari ahantu hahindagurika ku mpande zombi z’agace gakomeza. Iyo umurongo w’amashusho wimukiye muri aka gace, ikintu kigaragara kizahinduka, bigatuma bigoye kandi bitoroshye kubibona.
Uburyo bwo gukoresha lenses za progressive multifocal
Indorerwamo za "progressive multifocal lenses" zongera imbaraga kuva hejuru kugeza hasi, kandi zigatanga ahantu hatatu hihishe ha lenses, zitwikira kureba kure, hagati, no hafi, zigaragaza neza imiterere y'ahantu hatandukanye. Iyo wambaye indorerwamo za "progressive multifocal" ku nshuro ya mbere, aho kureba impande zombi z'indorerwamo bishobora kugorama no kugorama. Iyo aho imiterere y'indorerwamo ihagaze cyangwa ikagorama, bishobora no gutera kubabara no kutabona neza. Kurikiza intambwe za "banza utuze hanyuma wimuke, ubanza imbere hanyuma ukaza hanze" kugira ngo witoze buhoro buhoro kandi uhindure.
01. Agace k'ikirahuri cya telefoto
Mu gihe utwaye imodoka cyangwa ureba, shyira akananwa kawe imbere gato, shyira umutwe wawe utambitse, kandi urebe hagati mu ibara ry'ijisho hejuru gato.
02. Agace k'indorerwamo zo hagati
Mu gihe utwaye imodoka cyangwa ureba, shyira akananwa kawe imbere gato, shyira umutwe wawe utambitse, kandi urebe hagati mu ibara ry'umutuku uri hejuru gato. Ushobora kuzamura ijosi ryawe buhoro kugeza igihe ishusho igaragara neza.
03. Agace k'ikirahuri cyegereye
Mu gihe usoma igitabo cyangwa ikinyamakuru, gishyire imbere yawe, urambure akananwa kawe imbere gato, hanyuma ushyire amaso yawe hasi urebe ahantu hakwiye ho kwiyerekana.
04. Agace k'indorerwamo karimo ibara ry'umukara
Hari ahantu ku mpande zombi z'ikirahuri aho urumuri ruhinduka, kandi aho umuntu abona ibintu hazaba hatagaragara neza. Ibi ni ibisanzwe.
05. Ibyifuzo:
Kuzamuka no kumanuka ku madarajya: Manura umutwe wawe gato urebe hasi, hanyuma uhindure uko ubona uhereye ku gice cy'indorerwamo cyegereye ujya ku gice cy'indorerwamo kiri hagati cyangwa kirekire.
Kugenda n'amaguru buri munsi: Niba bigoye kwibanda ku kintu runaka, gerageza kureba metero imwe imbere yawe kugira ngo uhindure aho ureba. Imanura umutwe wawe gato iyo ureba hafi.
Gutwara cyangwa gukoresha imashini: Niba ukeneye kureba kure cyangwa hafi, ku ruhande cyangwa mu mpande nyinshi mu gihe ukora, nyamuneka bikore nyuma yuko umaze kumenyera neza indorerwamo z’indorerwamo.
Igihe cyo kohereza: Ukuboza-01-2023