Ukulungiswa kwi-Presbyopia
I-lens yoqhagamshelwano yindlela enokubaluleka ngayo kwabo bangaphezu kweminyaka engama-40 ubudala kwaye bajongene nombono onqabileyo. Xa sisekupheleni kweminyaka engama-40, amehlo ethu aqala ukuhlakulela i- presbyopia . I-Presbyopia yimeko apho amehlo alahlekelwa khona ukugxila ngokucacileyo kwizinto ezikufuphi. Eli lixesha apho abantu abaninzi beqala ukuthenga ngeenxa yokufunda iiglasi . Abanye banquma ukugqoka i- eye-glass , i-trifocal, okanye akukho-line-progressional eye glasses.
Ezi zinto zilandelayo zikhetho ezimbalwa zokunxibelelana kwentile kubantu abangaphezu kwama-40.
Iinkcukacha zoLwazi kunye neeGlasi zokuFunda
Ukuba unxibe iilensi zokudibanisa kumbono womgama, iiglasi zokufunda zilula ngokulula ukujonga izinto ezikufutshane kunye nokufunda. Nangona kunjalo, unokufumana kunzima ukufikelela kwiiglasi zakho zokufunda ngelixa uvale iilensi zakho zokudibanisa. Emva kwakho konke, mhlawumbi unxibe ii-lens zokuqhagamshelana kwindawo yokuqala kuba awukunandipha ukugqoka izibuko.
Olu khetho lungazwakali lukhangele kuwe, kodwa ngoku kuwona ndlela yindlela efanelekileyo yokufumana umbono ocacileyo kude, phakathi okanye kufuphi. I-lens zoqhagamshelwano zimiselwe ukulungisa umgama wakho ngokubanzi. Emva koko i-single-vision intermediate, i-glass-length-eye glasses okanye i-single-vision kufuphi nokufunda iiglasi zigqithiselwe izinto kwiindawo ezikufutshane.
- I-PROS: Nangona akuyona indlela elula kakhulu yokulungiswa kombono, le ndlela ihambisa umbono ocacileyo, obalaseleyo kuwo wonke umsebenzi. Abantu abanemisebenzi ethile efuna imbonakalo echanekileyo badla ngokugqithisa ukugqithisa le ndlela yokulungiswa kombono. Abadlali bavame ukuzonwabisa nale ndlela ukuze bafumane umbane wabo.
- I-CONS: Kumelwe ugqoke kwaye uchithe iziglasi zakho zokufunda rhoqo xa ufisa ukubona ngokucacileyo kumgama. Enyanisweni, kufuneka ube neeklasi zakho zokufunda rhoqo .
I-Monovision Qhagamshelana neLens
Kwi- monovision , enye ilensi yokudibanisa igqithiselwe umgama omde kwaye omnye ugugile. I-lens yoqhagamshelwano lomgama idla ngokugqithiseleyo kwiso .
Sonke sinombono obalaseleyo esiwusebenzisa ngokuyinhloko xa sibheka izinto ezikude. Ngenxa yoko, i-lens yoxilongo olujoliswe kusondeleyo kwiso lingabonakali libonakala lidala ubunzima ekulungiseni le ndlela yokulungiswa kombono .
- I-PROS: Nangona ivakala ngokungaqhelekanga, izigulane ezininzi ze-lone zixhomekeke ngokukhawuleza kunezinye iintlobo zama-lens ezinxulumene ne-presbyopic. Umbono osondeleyo ubonakala ucacile ngakumbi nge-monovision ngenxa yokuba iliso ngalinye lihambelane nekhono lombono ongatshatanga. Kwakhona, ukuba ufumana unxibelelwano olukhululekileko lens kunzima kuwe, ugqirha wakho unokukhetha okungenamkhawulo wezinto zokwakheka kwe-lens, ubukhulu kunye nemilo ngoba i-monovision yindlela yokulungiswa kwamandla, kunokuba ityhilo ethile ye- lens yocingo .
- I-CONS: Abanye abantu bajonga umgama owehla okanye umbono wokuqhuba, ikakhulukazi ebusuku, nge-monovision. Ukujongwa kwengqondo kuyencipha ngokukhawuleza ngeli gxiba i-monovision, enokuba yingxaki ebalulekileyo kubantu abazonwabisa kwimidlalo, njengegalufa kunye ne-tennis. Kwakhona, oogqirha abaqeqeshiweyo okanye abakuzonwabisa abanako ukugqoka i-monovision njengoko kunokubangela ukuba indawo ethile yombono ibonakaliswe kancinci.
I-Bifocal okanye i-Multifocal Contact Lenses
I-lifocal okanye i-lens multi-contactal lens ijolise ukudala umboniso wemvelo, njengoko amehlo omabili alungiswa kumbono kunye nomboniso osondeleyo.
Iilensi ze-multifocal zifumaneka kwiindidi ezahlukahlukeneyo, kubandakanywa igesi ekhunileyo , i-hybrid hard / soft and regular lenses. Ngokuxhomekeke kumenzi, bonke basebenza ngokungafaniyo.
Ezinye zeelensi ezinzima zenzelwe ngokufana ne-lined flat-top bifocal eyeglass lens kunye nokujikeleza kwiso lakho. Xa ukhangele phantsi ukuze ufunde, zihamba ngokunyuka kangangokuba umgca wakho wembono uhlanganiswe kunye necandelo elisondeleyo. Ezinye iilensi zibhekwa njengezinto ezinjenge-lens designs kwaye aziqhelekanga zijikeleze kwiso. Uyilo lwe-Aspheric lukhula ngokuthe ngcembe kwaye lunyuse ngamandla kwiziko ukusuka kwinqanaba le-lens.
Ezinye zale lensi zifuphi kumandla ombono phakathi kwe-lens kunye nombane wamanqanaba kwipheriphery, okanye ngokulandelana. Ezi lensi zoqhagamshelwano zisebenza ngokungafani ne-line-line ye- spectral lens kwaye ngamanye amaxesha zixhomekeke kubukhulu bakho bafundi .
Ezinye iilensi zingenziwa ngokukodwa. Ukuyila okucwangcisiweyo kunamacenge athile omgama kunye nombane osondeleyo. Ezi zifana nokuba neelensi ezimbini, umgama omnye kunye nomnye osondeleyo, uphantse kunye.
Kuza kuthatha ixesha lokuba amehlo akho ahlengahlengele i-lens. Emva kwithuba elincinane, amehlo akho aya kufunda ukuhlula phakathi kwemimiselo eyahlukeneyo, kwaye uya kuqala ukusebenzisa umyalelo ofanelekileyo kumgama ofanelekileyo.
- I-PROS: Amalensi e-multifocal amancinci amanciphisa ukuqonda kwenkcazo, xa kunjalo. Ukuba uhambelane ngempumelelo, awuyi kuba neengubo zamagqabi ngaphezu kweelensi zakho zoqhagamshelwano kwimisebenzi yakho yemihla ngemihla.
- I-CONS: Ezinye izigulane zezilingo ze-multifocal zikhalaza ngombono ongenangqondo ngelixa zenza imisebenzi ethile. Ukuba umgama umgama ucacile kakhulu, ngokuthe ngandlela-thile imbonakalo emfutshane ihluphekile. Ukuba umboniso osondeleyo ucacile, umgama okanye umbono ophakathi ungaphantsi kokulindelwe. Uninzi lwamehlo ugqirha abaxubushelana nezigulane zabo ukuba babone umsebenzi obaluleke kakhulu kunye naso ngqo kwaye bajolise ekuboneleleni ngombono ongcono kulo msebenzi. Abanye abantu bayakhalaza ngemifanekiso yokufa okanye ukuphindwa kabini kwemifanekiso ngamaxesha athile, ngokuqhelekileyo xa bembethe oonxibelelwano be-multifocal okokuqala. Nangona oku kuyingxenye yenkqubo yokulungelelanisa, ibangela abanye abantu ukuba bayeke ukuwagqoka. Ngamanye amaxesha ububele bobugqwetha ngenye ingxaki xa begqoka ii-lens multifocal. Abanye abantu baya kukwazi ukufunda umgca we-20/20, kodwa bathi akubonakali "kuluhlaza."
Oko Okufanele Uyazi
Abanye oogqirha bamajoni banamathele umxube weendlela ezi ngasentla, kuxhomekeke kwizidingo zesigulane. Ukufowunelwa kwe-lens contacting lenses kuxhomekeke kwizinto ezininzi ezibandakanya ukuguquguquka kwakho, indlela yokuphila, imithi kunye nesimo sakho somzimba kunye ne-physiology. Amagqirha e-Optometric kunye ne-ophthalmologists afanele ukufumana ii-lens zokunxibelelana ngokukhawuleza ukuba uhlobo lensensi enye alusebenzi kuwo wonke umntu. Iilensi zokudibanisa ezifanelekileyo zokulungisa i-presbyopia zidinga isayensi encinane kunye nobugcisa obuncinane.
Umthombo:
Gupta, N, SA Naroo kunye noJS Wolffsohn. "Ukuqhathaniswa okubonakalayo kwe-lens yokuxhumana kunye ne-monovision." I-Optometry ne-Visual Science, Feb 2009.