Iinkampani ezininzi, ezibandakanya eziliqela kwiwebhu, zikhangise izibane ezigulisa. Ezi nkampani zihlala zenza amabango anqabileyo malunga neenzuzo zabo. Usenokuba ufunde ukuba izibuko zepinhole zibonakala ngokucacileyo ngokunciphisa iziphene zokuzikhumbuza kunye nokuphuculwa kombono ngokusisigxina. Nangona kunjalo, akukho bungqina obukhoyo ukuxhasa ngokupheleleyo ezi zibango.
Ziziphi iifilimu zeglasi?
Iziglasi ze-Pinhole, ezibizwa nangokuthi iziglasi ze-stenope, ziziglasi zama-lens ezinamaqela amancinci amaninzi azalise iphepha eliphambili leplastiki.
Ezi "pinholes" zithintela imilayezo engacacanga ekungeneni kwiso, ngaloo ndlela uwavimbela ukuba baphambukise umbono wakho. Ngoxa le nto ayiyi kuphucula ikhono lokugxilwa kwelihlo, linciphisa ubungakanani bendulungu yesigxina kumqolo we- retina , ngoko ke umboniso ocacileyo unokufezekiswa.
Indlela Abasebenza ngayo
Sonke siye sabona le ngxaki ngokutyhola amehlo ethu ukuphucula umbono. Isiqwenga sifinyelela into efanayo. Iyanciphisa ubukhulu bezinto ezikhanyisiweyo zokukhanya ezikhanyisa umhlaba onomthamo. Unokwenza into efanayo ngokwenza isangqa encinci ngesithupha sakho kunye nomnwe wakho wokukhomba kwaye ujonge kuyo. Enyanisweni, abo bethu abangenayo nayiphi na ingxaki ebalulekileyo yemboniso abayi kubona ingqikithi enkulu. Nangona kunjalo, abantu abagqoke iilensi zokulungisa baya kuphawula ukuphuculwa, ngamanye amaxesha ukuphucuka okukhulu.
Ukuba uzama kwiipilazi zeglasi, ungabona ukuphucula kumbono wakho.
Nangona kunjalo, ngelixa iiglasi ezigubungelayo, umbono uphazamiseka kakhulu kwiindawo ezimnyama ezijikeleze i-pinholes. Kubonakala kubakho ukuhweba ekucaciseni kombono xa kuthelekiswa nomlinganiselo wokukhanya. Ukuba wenza imingxuma engancinci, imboniso iya kuba ngcono, kodwa ukukhanya kokunciphisa ukuba umgangatho wombono uyingozi.
Izinzuzo
Iziglasi ze-Pinhole zisetyenziswe ngokugqithiswa kwamehlo njengeziko lokuxilonga. Oogqirha bamajoni amaninzi basebenzisa i-occluder, isixhobo esetyenziselwa ukugubungela enye yamehlo akho ngelixa ufunda itshati yamehlo. Ngesinye icala, umlingo unamandla. Kwesinye siphelo, i-occluder inamathothole amaninzi.
Ngamanye amaxesha oogqirha basebenzisa le nto ukukhawuleza ukubona ukubonakala kombono wakho. Umzekelo, ukuba umntu ungena kwiofisi yokutyelela ukusuleleka kweso kwaye kwaye angafunda kuphela ubungakanani bee-20/70 zobunobumba kwitshati yamehlo, ugqirha uya kubuza, "Ngaba lo mbono womntu 20/70 ngenxa yesifo , okanye ngaba inxalenye yaloo nto inganciphisa umbono ngenxa yokubekwa phambili? "Ukufumana ngokukhawuleza ukuba loo mbono ungabonwa ngcono ngaphezu kwe-20/70, ugqirha angenza" i-pinhole "yokuvavanywa kwamathambo. i-pinholes kwaye ifunda i-20/25, ngoko ke kunokucingelwa ukuba ininzi yombono owehlayo awukho ngenxa yentsholongwane, kodwa kunokohlobo oluthile lwenkinga engabonakaliyo yombono. ncinane.
Ugqirha akanakho ixesha lokuba afune ukuba yeyiphi uhlobo lomgudu isigulane esinokuyidingayo, kuba umntu unokungena kuphela ukuba athathwe.
Ngoko ke, uvavanyo lwe-pinhole yindlela ekhawuleza kakhulu yokufumana ulwazi oluninzi malunga nesimo somntu. Iziglasi ze-Pinhole zisetyenzisiwe ngezinye iindlela zokuvavanya ukuphazamiseka kwamakhonkco kunye ne-cataract.
Ngubani ongasebenzisa iiglasi ze-Pinhole
Kwabaninzi bethu, iziglasi ze-pinhole azivunyelwanga kuluntu ukuba zigqoke esidlangalaleni kwaye zingasebenzi ngokufanelekileyo ukumbatha imisebenzi yemihla ngemihla. Nangona kunjalo, abanye abantu baye bathi bakhetha ukuba bagqoke i-bifocal okanye i-trifocal. Iziglasi ze-Pinhole azibizi kwaye zibonelela ngokucacileyo imbonakalo kuyo yonke imimandla, kanti i-bifocal ingaba nemingcele kwimida ethile.
Abantu abanomyalelo ophezulu kakhulu kwaye baphula okanye baphulukane neziglasi zabo bafuna ukugcina iiblasi zeglasi ezijikelezayo.
Nangona bengenzi ngokugqibeleleyo, baya kuba neenjongo ezifanelekileyo kwiinjongo ezingxamisekileyo. Izigulane ezine-aniridia nazo zinokuzuza kwiilazi zepinki. I-Aniridia ichaza ukungabikho okupheleleyo okanye okukhethileyo kwe-iris. Iris isebenza ukulawula isixa sokukhanya esivunyelwe ukungena iso. Xa iris engekho, isigulane sinokubandezeleka ngokugqithisekayo kunye nokubonakala okubonakalayo apho iilazi eziqhelekileyo okanye izibuko zelanga zikuncedi. Iiglasi ezigxobhozo ziya kunciphisa umlinganiselo wokukhanya ozayo kwaye zivelise umboniso ocacileyo.
Uninzi lwabantu luya kunqabisa ukugqoka izibane zengqungquthela, njengoko zingabonakali kakuhle. Kwakhona, ku funeka kuqatshelwe ukuba iziglasi ze-pinhole zinciphisa kuphela ukukhanya kodwa ziyancipha umboniso wembonakalo, ngoko ke zikhuselekile ukugqoka xa uqhuba okanye usebenza ngemishini. Phantse kuzo zonke iimeko, ezinye iindlela zokulungiswa ziya kufumana umboniso ocacileyo.
> Umthombo:
> Optometrists Association Australia. Izikhokelo zePinhole. Copyright 2008