I-Optometry ayilingani nomyalelo wesibuko
Abantu abaninzi bakholelwa ukuba i-Optometry "kukuvavanya iqondo lokujonga kufutshane" kwaye bakuba befumene esi siphumo, banokuqhubeka nokufaka iglasi yamehlo. Nangona kunjalo, ummiselo we-Optometry kuphela "sisiphumo somlinganiselo" wesimo sokujonga ngamehlo omntu, kwaye isenokungabi ngowona myalelo ulungileyo kwiindondo. I-Optometry kunye ne-eyeglass fitting yinxalenye ebalulekileyo yenkqubo epheleleyo, kwaye ukuba iqhutywe ngokwahlukileyo, imiba inokuvela.
Ukukhetha iifreyimu zeglasi yamehlo ngumsebenzi wobugcisa.
Uninzi lwexesha, abathengi bajonga kuphela "ixabiso lobuhle" xa bekhetha iifreyimu zeglasi yamehlo. Ukuba iifreyimu zeglasi yamehlo beziyinto nje yefashoni njengempahla, bekuyaqondakala. Nangona kunjalo, iifreyimu zeglasi zamehlo zikwathwele uxanduva lokulungisa iimpazamo zokuphinda zibonakale. Ke ngoko, ukongeza kwi-aesthetics, ubuncinci izinto ezintathu kufuneka ziqwalaselwe:
1. Ubungakanani besakhelo
Abanye abantu baneendlebe ezibekwe phambili, ngelixa abanye beneendlebe ezibekwe ngasemva. Ubude obukhethiweyo beetempile (iingalo) zeeglasi zamehlo ziya kuhluka ngokufanelekileyo. Ukuba iitempile zide kakhulu okanye zifutshane kakhulu, zinokuchaphazela i-pantoscopic tilt kunye nomgama we-vertex weglasi. Nangona uninzi lweewebhusayithi zokuthenga kwi-Intanethi zibonelela ngemilinganiselo yeeglasi, kunzima ukukhetha isakhelo esingena ngokufanelekileyo ngaphandle kokuzama sona emntwini.
2. Ummiselo wokufakwa kweglasi yamehlo
Umyalelo we-Optometry kunye nokukhethwa kwezakhelo zeglasi zamehlo zixhunyiwe ngokusondeleyo. Umzekelo, kubantu abaneempazamo eziphezulu ze-refractive, ukuba bakhetha iifreyimu ezinobungakanani obukhulu, iilensi aziyi kuba nzima kwaye zibe nzima, kodwa kuya kuba nzima ukulungelelanisa iziko le-lens kunye nombindi wabafundi. Oku kunokukhokelela kwiimeko ezingathandekiyo apho i-eyelashes ixubha kwiilensi xa iqhwanyaza.
3. Sebenzisa indawo kunye nenjongo
Ukukhethwa kwezakhelo kuyahluka ngokuxhomekeke kwiimfuno ezahlukeneyo. Kubantu abenza imisebenzi yesiqhelo yomzimba, iifreyimu ezineengalo zangaphakathi ezibambeleyo kunye neengalo ezigobileyo zetempile ezilungele ukuqina ziyacetyiswa. Kwabo basebenza kwidesika ixesha elongeziweyo, iifreyimu ezineempumlo ezichasene ne-slip kunye neerimu eziphezulu zeelensi zifanelekile. Ngelixa uqhuba, iifreyimu ezinombono obanzi we-peripheral ziyakhethwa, kwaye iifreyimu ezimxinwa zinokubonelela ngombono obalaseleyo weperipheral.
Zonke ezi zinto zixhalabisayo zifuna ukuba ingcali yamehlo ithathele ingqalelo. Ukufaneleka kwezakhelo zesitayile kunokumiselwa kuphela ngokunxitywa kwangempela, ukuqinisekisa ukuba iiparamitha zihambelana ngokufanelekileyo.
Imiba evela kwiiparamitha ezingahambelaniyo
Ngaphandle kokuzama kunye nokulinganisa eyona datha ifanelekileyo yezakhelo ezinkulu, kunokukhokelela kwimiba yokungangqinelani komgama we-pupillary (PD). Ukunxiba iiglasi ixesha elide kunye nePD engachanekanga kunokubangela iziphumo zeprism, kubangele ukukhathala kwamehlo kunye nokukhawulezisa ukuqhubela phambili kwe-myopia.
Umgama wePupillary (PD) ngumgama phakathi kwabafundi bamehlo. Xa ufaka iiglasi, zimbini iindidi zemilinganiselo yePD: umgama wePD kunye kufuphi nePD. Umgama wePD ubhekisa kumlinganiselo othathwayo xa umntu egxile ekujoliswe kuko okude (okt, umgama phakathi kwamaziko abafundi xa omabini amehlo ejonge ngqo phambili kumgama). I-PD ekufutshane (i-NCD) ngumlinganiselo womgama phakathi kwamaziko abafundi xa besenza umsebenzi osondeleyo.
Kwakhona kubalulekile ukuqwalasela umba wokuphakama komfundi xa kuziwa kwiiglasi ezingaphezulu. Kuyafaneleka ukuba uqaphele ukuba ukuphakama kwabafundi bamehlo omabini kunokuba kungabi kwinqanaba elifanayo. Oogqirha bamehlo abanamava baya kusebenzisa indlela yokubonisa i-corneal ukumisela indawo yobude obuchanekileyo bomfundi. Ukunyamezela kwicala elithe nkqo kumehlo omntu kunovakalelo. Ukuba ukuphakama kweziko le-optical yeelensi ezenziwe kakuhle akuhambelani nokuphakama komfundi, kunokubangela iziphumo zeprism kwaye kubangele ukukhathala kwamehlo.
Ukuchaneka kweOptometry
01Ngenxa yezinto ezifana nokusingqongileyo kwe-Optometry kunye nobude bexesha lokunxiba iilensi zesilingo, kunokubakho ukuguquguquka kwiziphumo ze-optometry. Umzekelo, kunokubakho umahluko phakathi kwe-optometry eyenziwa kusasa nasemva kwemini. Ngokubanzi, umyalelo kagqirha emva kwemini unokuba phezulu kancinci kunentsasa ngenxa yokudinwa okubonakalayo okuqokelelwe imini yonke. Xa ukhetha indawo ye-optometry, kubalulekile ukukhetha iziko eliqeqeshiweyo nelihloniphekileyo ukuqinisekisa iziphumo ezichanekileyo nezithembekileyo ze-Optometry.
02Ukuchaneka komyalelo kunokwahluka kwiliso ngalinye. Ngexesha lenkqubo ye-optometry, i-optometry yekhompyuter inokusebenza njengesalathiso, kodwa akufanele ithathwe njengommiselo wokugqibela weeglasi. Ugqirha wamehlo kufuneka abuze ngokweenkcukacha malunga nokukhululeka komntu onxibileyo kwaye ngokuqhubekayo aqinisekise kwaye alungelelanise i-axis ye-astigmatism engqukuva (ukubona kufutshane, ukubona kude) kunye ne-cylindrical (astigmatism) ukufumana eyona bhalansi kwaye icokiseke kakuhle i-axis ye-astigmatism.
Ukuhlolwa kweZifo zamehlo kunye noVavanyo lokuSebenza okuBonwayo
I-Optometry yobuchwephesha ibandakanya okungaphezulu kunokubonelela nje ngemiyalelo yokubona kufutshane neyokubona kude. Ikwabandakanya iimviwo eziphambili ezingenakuqhutywa kwi-intanethi:
① Uvavanyo lwamehlo lokuqala: Ukuthintela izifo zamehlo.
② Uvavanyo lomsebenzi olubonakalayo: Uvavanyo lwemigangatho emithathu yemisebenzi yokubonwa kunye ne-ocular accommodation kunye neemvavanyo zokudibanisa.
③ I-Ergonomics yokufaka i-eyewear: i-Pantoscopic tilt, umgama we-vertex, kunye nendawo yokubona embindini.
Imilinganiselo eyenzelwe wena kunye nokwenza ngokwezifiso kufuna ukumisela ezi ziphumo zoviwo.
Iziphumo ezichaphazela iDatha
Idatha ye-Eyewear ekwi-Intanethi ibonelela ikakhulu ngolwazi malunga neempazamo ze-refractive (ukubona kufutshane, ukubona kude) kunye nomgama we-pupillary, oyimfuneko ekufakeni iiglasi. Nangona kunjalo, kukho ezinye iindawo ezininzi zedatha ezinokuchaphazela iziphumo ezifanelekileyo, ezifana nokuma kwamehlo, indawo yendlebe, umgama we-vertex, i-pantoscopic tilt, kunye ne-optical center position.
Ukongeza kule datha ingentla, nobukhulu besakhelo bunokuba nefuthe kakhulu kwiziphumo ezifanelekileyo. Ukunxiba iiglasi ezinkulu kakhulu kunokukhokelela kwi-chromatic aberration kunye neziphumo zeprism. Oku kuyinyani ngakumbi kwi-myopia ephezulu, njengoko iifreyimu ezinkulu zinokubangela imiphetho yeelensi ezishinyeneyo, zincame izibonelelo zeelensi eziphezulu kwaye zibangele amanqanaba aphezulu eziphumo zeprism, ezikhokelela kwisiyezi. Ke ngoko, xa ukhetha iifreyimu, kubalulekile ukukhetha iifreyimu ezineparamitha ezifanelekileyo ngokusekwe kwiziphumo zeemviwo zokulingwa kunye nokufaneleka, kunokujolisa kuphela kwisitayile.
ImiGangatho yoMgangatho kunye noLungiso lwe-Post-Fitting
Kwi-intanethi ye-eyewear efanelekileyo, xa iiglasi zifunyenwe ekugqibeleni ngumthengi, kuyimfuneko ukuqinisekisa induduzo yokugqoka kunye nokuphinda uhlolisise umyalelo. Uhlengahlengiso kwiimpumlo zempumlo, iitempile, njl., kufuneka zenziwe ngokusekelwe ekuboniseni ubuso ngobuso. Nangona iiglasi zinokubonakala zilula, kwaneempazamo ezincinci zinokubenza bangakhululeki ukunxiba kunye nokunciphisa umgangatho wokubonwayo. Ukwahluka kwedatha kunokunyusa ukudinwa okubonakalayo kwaye kube nzima ngakumbi ukubona.
Ukuququmbela
Iperi yeglasi efanelekileyo ayincedi kuphela abantu ukuba basebenze kwaye bafunde ngcono kodwa iqinisekisa impilo ebonakalayo. Ukufakwa kwamehlo kwi-Intanethi kunika izibonelelo ezinjengokufikeleleka, izitayile ezahlukeneyo, kunye nenkqubo eyenziwe lula. Noko ke, asimele siyilibale injongo yantlandlolo yokufaka iindondo. Kuphela ziiglasi ezihlangabezana nemigangatho yempilo yamehlo zezona zinto sinqwenela ngokwenene.
Ixesha lokuposa: Dec-15-2023