Iyiphi ilensi elungele ukufunda izibuko?
1. Ngaphansi kwezimo ezijwayelekile, izinto zokufunda izibuko kufanele zenziwe ngensimbi, ngoba kuphela amafreyimu e-spectacle ale nto azoba ngcono kunezinto ezijwayelekile, ezinokumelana nokugqwala okuqinile kanye nokumelana nomthelela oqinile Ngokuvamile, izinto zohlaka ezisetshenzisiwe azikwazi ezikhethiwe ezintweni ezingezwani nesikhumba, ngaphandle kwalokho uzozizwa ungakhululekile uma uzigqokile, ikakhulukazi izibuko zokufunda zenzelwe abantu asebekhulile, futhi imizimba yabantu asebekhulile isencane.Abantu babuthakathaka kakhulu, ngakho-ke lapho ukhetha izinto zokwakha, kufanele ukhethe izinto ezingezona i-allergic esikhumbeni, ngaphandle kwalokho imiphumela izoba yinhlekelele.
2. Ngaphezu kwalokho, i-lens yezibuko zokufunda ingcono kakhulu eyenziwe nge-resin.Le nto ingamelana ngempumelelo nemisebe ye-ultraviolet, i-infrared, nezinye izinto.Uma igqokile, izophinde ibe nezinga elithile lokumelana nokukhathala emehlweni akho, ngaphandle kwalokho iyokwenza Ngemva kokuyisebenzisa isikhashana, izoveza umuzwa othile wokukhathala, futhi ngisho noma izinga lingelihle, ezinye izifo zingase zenzeke.Ngemva kwalokho, ayikho indlela yokwelapha.Ngakho-ke, i-resin lens ingcono kakhulu kunelensi evamile.Inkomba ye-refractive nayo iphezulu kakhulu.
3. Uma ukhetha i-lens, kufanele wengeze ifilimu ku-lens, noma usebenzise i-aspherical lens.Lokhu kukhetha kuhle impela, kungcono kakhulu kunamalensi ajwayelekile.Ngaphezu kwalokho, kungenza umkhakha wakho wokubona ucace., Ngeke kube khona izithiyo lapho kufundwa noma eminye imisebenzi.Ngeke kube khona ukuzumeka kwengqondo.
Indlela yokufanisa izibuko zokufunda
1. Abanye abantu abadala bafuna ukonga izinkinga futhi bathenge izibuko zokufunda esitolo samehlo noma emgwaqweni.Lokhu akulungile.Ngoba izibuko zokufunda ezithengwa ngokuqondile zivame ukuba nezinga elifanayo lokubona, kodwa wonke umuntu amehlo anezimo ezihlukene ezifana ne-myopia, hyperopia, astigmatism, kanye nezinga le-presbyopia yamehlo abantu nakanjani lihlukile, futhi ibanga le-interpupillary nalo lihlukile.Uma uyigqoka ngokunganaki Kungabangela umonakalo omkhulu emehlweni, futhi kulula ukwandisa ukucindezeleka, ukukhathala, ukungaboni kahle nezinye izimpawu.Kufanele uqale uye esibhedlela se-ophthalmology ukuze uhlolwe amehlo ukuze ukhiphe izifo ze-cataract, i-glaucoma, ne-fundus nezinye izifo ze-fundus, bese ucela udokotela ukuthi athole i-refraction futhi anqume ibanga le-interpupillary;yenza ilensi ye-presbyopia kanye nedigri yokulungiswa kombono eseduze ihambisane.
2. Asebekhulile kufanele bazame izibuko isikhashana ngemva kokuba zifakelwe.Kuyaqapheleka futhi ukuthi isikhathi sokuvivinywa siside kancane.Ngemva kokugqoka izibuko zokufunda isikhathi esithile, uma unomuzwa wokuthi izibuko azifaneleki, ungakwazi ukuphikisa ukuze ubone izinguquko embonweni oseduze futhi uphinde ukhethe izibuko.Naka ibhalansi yamehlo, ngaphandle kwalokho izokwandisa ubunzima bamehlo futhi isheshise i-presbyopia.
3. Izinga le-presbyopia emehlweni abantu asebekhulile alimile.Ngemuva kokufakwa kwezibuko, umbono wabo kufanele uhlolwe njalo njalo eminyakeni emi-2 kuya kwemi-3;izinga lama-lens kufanele lilungiswe ngesikhathi ngokuvumelana nezinguquko zombono.Uma zingekho izimpawu ezifana nokuhlanekezelwa kwefonti, isiyezi nokuhlanza, kusho ukuthi izibuko zokufunda zifanelekile;uma amehlo ekhathele ngemva kokufunda isikhathi eside, kusho ukuthi amandla kufanele alungiswe.
4. Uma ukhetha uhlaka lombukiso, kufanele unake umbala owuthandayo.Ingabonisa ukungathí sina nesithunzi sasebekhulile kanye nokuziphatha kwasebekhulile.Kunemibala eminingi yohlaka, njengokuthi: umbala wothingo;umbala wekhofi;iparele elimhlophe nelimhlophe.Uhlaka kufanele lukhethwe ngokuqina okuhle;inamandla okumelana nokugoba.Isitayela esilula singacatshangelwa ngabantu asebekhulile ngokwezinto abazithandayo.
Ukungaqondi kahle ngezibuko zokufunda
1. Akulungile ukuba nesithombe esishibhile nesicacile.Izibuko zokufunda emgwaqeni zivame ukuba nezinga elifanayo lamehlo kanye nebanga eliqondile le-interpupillary.Kodwa-ke, iningi labantu asebekhulile linamaphutha e-refractive njenge-myopia, i-hyperopia noma i-astigmatism.Ngaphezu kwalokho, izinga lokuguga kwamehlo lihlukile, futhi ibanga le-interpupillary nalo lihlukile.Uma ugqoke ngokunganaki izibuko, ngeke nje ukwazi ukufeza umphumela omuhle kakhulu wokubukwa kwabantu asebekhulile, kodwa kuzodala ukuphazamiseka okubukwayo nokukhathala kwamehlo.
2. Faka izibuko ngaphandle kwe-Optometry noma ukuhlolwa.Ngaphambi kokugqoka izibuko zokufunda, hamba uye esibhedlela ukuze uyohlolwa amehlo, okuhlanganisa ukubona kude, ukubona eduze, umfutho we-intraocular nokuhlolwa kwe-fundus.I-cataract, i-glaucoma, nezinye izifo ze-fundus kumele zikhishwe ngaphambi kokuba i-optometry inqume izinga.
3. Uma izibuko zokufunda sezigqokwe kuze kube sekugcineni, izinga le-presbyopia lizokhula ngokukhula kweminyaka.Uma izibuko zokufunda zingafanelekile, kufanele zishintshwe ngesikhathi, ngaphandle kwalokho kuzoletha ukuphazamiseka okuningi empilweni yasebekhulile, futhi kuzosheshisa izinga le-presbyopia.Ngesikhathi esifanayo, amalensi e-presbyopic anesikhathi esinqunyelwe sokuphila.Uma esetshenziswa isikhathi eside, ama-lens azohlushwa imihuzuko nokuguga, okuzonciphisa inani lokukhanya okudlulayo futhi kuthinte ikhwalithi ye-imaging yamalensi.
4. Ingilazi ekhulisayo ithatha indawo ye-presbyopia.Abantu abadala bavame ukusebenzisa izibuko zokukhulisa izingane esikhundleni sezibuko zokufunda.Ingilazi yokukhulisa egoqwe ezingilazini zokufunda ilingana namadigri ayi-1000-2000.Isikhathi eside "sokuzithokozisa" kwamehlo, kuyoba nzima ukuthola izinga elifanele lapho izibuko zokufunda zifaniswa.Ukugqoka izibuko zokufunda kungasetshenziswa kuphela ukubuka izinto eziseduze.Ukuhamba ngezibuko zokufunda noma ukubheka kude kuzokwenza umbono ube lufifi futhi ube nesiyezi.Ukugqoka izibuko zokufunda kufanele kuhlolwe ngokuqinile, ngoba ukuthenga izibuko zokufunda kungase kubangele ukungakhululeki nokonakala kwe-presbyopia ngenxa yemingcele engalungile.
Isikhathi sokuthumela: Dec-06-2021