Odokotela bamehlo (ODs) abatshala imali ekuhlinzekeni amalensi okuxhumana akhethekile bangaklonyeliswa ngezindlela eziningi.
Okokuqala, ukunakekelwa okuhlosiwe okuthola iziguli kuvame ukubenza amakhasimende aphinda isikhathi eside.Lokhu kungenxa yokuthi, ezimweni eziningi, imibono eyayibhekwa njengengenakwenzeka ifinyeleleka.
Okwesibili, iziguli zamalensi okuxhumana zinamathuba amaningi okuthuthukisa ubudlelwano besikhathi eside namahhovisi achaza amalensi azo akhethekile ngenxa yokwanda kokuvakasha kokuhlolwa nokunakekelwa kokulandelela.Lokhu kuhumushela ekuzuzweni kochwepheshe kodokotela namahhovisi.
Kungani Amalensi Ochwepheshe Ehlukile Okwenza ama-lens ochwepheshe ahluke kangaka umphakathi we-niche abawenzayo.Eklanyelwe ngokukhethekile iziguli ezinezinkinga zamehlo, njengezimo ze-cornea, ama-lens ochwepheshe angakwazi ukusekela ngokugcwele imiphumela yokwelashwa oyifunayo lapho amalensi okuxhumana avamile enganele.
Amalensi okuxhumana ochwepheshe ayindlela enhle uma ufuna izibuko zamehlo ezilungiselelwe iziguli ezine-corneas ezivamile nezingavamile.Zingakwazi ukuthuthukisa induduzo ebonakalayo nokusebenza okubukwayo ezigulini ezinobunzima bokuthola i-lens yokuxhumana efanele.
Kunenqwaba yamalensi okuxhumana akhethekile angasiza ekwelapheni izimo ezihlukahlukene ze-cornea. Lokhu kufaka phakathi i-myopia eqhubekayo, i-hyperopia, i-astigmatism enkulu, i-keratoconus, i-hyaline marginal degeneration, ukuhlinzwa kwe-post corneal njengokufakelwa kwe-corneal, i-laser-assisted in situ keratomileusis (LASIK) dilation , izibazi ze-cornea, iso elomile, nokungakhululeki okuvamile uma abantu begqoka amalensi okuxhumana.Okuhlobene: Zama Amalensi e-Toric Orthokeratology
Futhi, kunezinhlobonhlobo zamalensi ochwepheshe ongakhetha kuwo.Lokhu kufaka phakathi amalensi athambile futhi aqinile (RGP) contact (okuhlanganisa i-orthokeratology), amalensi okuxhumana e-piggyback, ama-scleral contact lens, ama-corneal-scleral lens, ama-mini-scleral lens, ingxubevange. ama-contact lens namalensi okufakelwa.
Amalensi e-Scleral, amalensi e-RGP, amalensi ayingxubevange, amalensi okufakelwa athambile, kanye nokubunjwa kwe-corneal yizinhlobo ezi-5 ezisetshenziswa kakhulu.Irekhodi labo eliphumelelayo lisekela ukuhlanganiswa okubanzi kwawo wonke amalensi ochwepheshe.
I-diameter ye-scleral contact lens inkulu kunaleyo yamalensi okuxhumana endabuko, isebenzisa ngokugcwele impahla yayo ephezulu yokuphefumula komoyampilo kanye nokunethezeka okwandayo.
Ngaphezu kwalokho, esikhundleni sokubekwa ngqo ebusweni beso, amalensi okuxhumana e-scleral afakwa ku-sclera futhi avame ukugoba phezu kwe-cornea;lokhu kushiya i-reservoir yezinyembezi phakathi kwe-lens ne-cornea.
Ukuphakama kwe-sagittal, noma indawo emaphakathi, kwakhiwa ungqimba loketshezi olukhala izinyembezi oluvaleleke ngaphansi kwelensi futhi lusize ekunciphiseni ama-corneal aberration, okuhlinzeka iziguli ngemiphumela engcono yokubona.
Amalensi e-Scleral kufanele agcwaliswe ngesisombululo saline esingalondoloziwe ukuze kugwenywe noma yimaphi amabhamuza omoya akhe endishini yelensi. Ngemva kwalokho kufanele afakwe endaweni engaphambili yeso.
Isixazululo se-saline (ngokwengezwa ngezikhathi ezithile kweconsi lezinyembezi zokwenziwa ezibulala amagciwane noma amaconsi e-autologous serum) sisebenza njengechibi eliqhubekayo lefilimu lezinyembezi, ligcina ingaphezulu leso limanzi futhi londlekile isikhathi eside, lithuthukisa izimpawu zamehlo omile futhi lithathe indawo yama-cornea angajwayelekile. enendawo ebushelelezi .Lokhu kuvame ukulungisa izinkinga zokubona ezibangelwa ukungahambi kahle kwe-cornea.
Amalensi e-Scleral enzelwe isiguli ngasinye. Ngenxa yalokho, ukuwagqoka kudinga ulwazi olwengeziwe, isikhathi esithe xaxa sesitulo, nokuvakasha kwamahhovisi kaningi kunamalensi athambile noma amancane e-RGP.
Imishini yokuthwebula izithombe kanye nemishini yokulinganisa ezenzakalelayo isetshenziswa ne-scleral lens ngesikhathi sokufakwa kokuqala kanye nokuvakasha kokulandelela okulandelayo ukuze kuqinisekiswe ukufaneleka okufanele.Le mishini ngokuvamile ayidingeki uma ugqoke amalensi okuxhumana athambile.
Ubukhulu be-scleral lens buncike ebunzimeni besimo se-cornea.Ngokujwayelekile nge-keratoconus, i-lens ijwayele ukugudluka kaningi ngenxa yokwelula kwephuzu, futhi inyakaza ngokweqile ngokucwayiza, okubangela ukungakhululeki kwamehlo.
Izimo ezithuthuke kakhulu neziyinkimbinkimbi, ezifana ne-keratoconus emaphakathi ukuya kobucayi kanye nesifo se-ocular surface, kungase kudinge amalensi e-scleral anobubanzi obungaphezu kwesilinganiso esimaphakathi ukuze kuqinisekiswe ukumbozwa okuphelele futhi kusheleleke yonke indawo yokubona ethintwa i-cornea engavamile.Related: I-Scleral Lens Wear kanye Nezifo Zamehlo
I-Keratoconus ijwayele ukuthuthuka ngokushesha kuya ezigabeni ezinzima futhi ngokuvamile ayiphenduli kwezinye izindlela zokwelapha.Ezigulini ezinalesi simo, ukugcina impilo yamehlo kanye nokubona kahle nokunethezeka kuyinto ehamba phambili.
ama-contact lens anombala we-astigmatism
Inzuzo yamalensi e-scleral ukuthi awawi ngokunyakaziswa kwamehlo ngokushesha, futhi inqobo nje uma isiguli senza inhlanzeko efanele yejwabu leso kanye nokugcinwa kwamalensi, izinhlayiya ezinjengothuli nemfucumfucu azivamile ukungena ngaphansi kwelensi.
Amalensi e-RGP abelokhu ekhona isikhathi eside futhi ayevame ukuba yisinqumo esiyinhloko ngaphambi kwe-hybrid kanye ne-scleral.Amalensi e-RGP ahlinzeka ngombono obukhali kunamalensi athambile kanye nama-silicone e-hydrogel ngenxa yokusebenza okuphakeme okuphakeme, ukugoba kwelensi encane kanye nokunciphisa ukunamathela kwediphozithi.
Amalensi e-GP alungele ukusekela iziguli ezinama-cornea ahlukumezayo noma izibuko ezilufifi, kanye nalezo ezingaboni kahle ezinamalensi athambile.
Ngaphezu kokulungiswa kombono, amalensi e-RGP ahlinzeka ngokulungiswa kwe-orthokeratology, okulungisa ubuso be-cornea ukuze kubambezeleke ukuqhubeka kwe-myopia.
Bangakwazi ukulungisa ukubona okwesikhashana ngaphandle kwesidingo samalensi okuxhumana asemini noma izibuko, okubenza balungele izingane kanye nabantu ngabanye abadlala imidlalo noma umsebenzi okwenza kube nzima ukugqoka amalensi okulungisa ngesikhathi. ekuqaleni kuka-2022
Amalensi okufakelwa athambile anikeza izinzuzo zezimonyo, zokwelapha, nezingokwengqondo ezigulini, ikakhulukazi lezo ezinezibazi ezinezibazi, ama-irises angavamile, namehlo angaboni kahle.Lokhu kungabangelwa ukuhlukumezeka, i-glaucoma, ukutheleleka, izinkinga zokuhlinzwa, kanye nezinkinga zokuzalwa.
Ngaphandle kokuthuthukisa ukubukeka kwezimonyo, ama-lens angasiza ekuvimbeni ukukhanya futhi anciphise ukuphazamiseka okubukwayo okungaholela ebuhlungu, i-photophobia, i-diplopia, nokungakhululeki.
Amalensi atholakala ngezinketho ezihlukahlukene njengombala ocacile, imiklamo evamile engacacile, nemiklamo ependwe ngesandla ngokwezifiso, kuye ngempatho nezimfuneko zezimonyo.OKUHLOSIWE: Ungawagqoka Kanjani Amalensi E-Scleral Ngokuzethemba Nobuhlakani
Amalensi okuxhumana athambile angasiza ekudambiseni ukuhlukumezeka ngokomzwelo ngenkathi ehlinzeka ngokunakekelwa kokwelapha ezigulini ezinezinkinga eziningi zamehlo.
Ngokufaka ilensi yokuxhumana ethambile yangokwezifiso esigulini, i-OD inganikeza isixazululo sokunethezeka kwesiguli.
Amalensi okuxhumana ayiHybrid ahlinzeka ngokuphila isikhathi eside, ukuqina, nokubona okucacile kwamalensi e-RGP anomklamo onethezekile, ogqokekayo wamalensi athambile.Azuze le miphumela ngesikhungo se-GP esizungezwe into ethambile yelensi yangaphandle.
ama-contact lens anombala we-astigmatism
Uzimele wesiketi esithambile ozungeze ilensi eyingxubevange uvala ukuxhumana phakathi kwezinto ezithambile nezinto ze-GP, okuvumela indlela esebenza kahle kakhudlwana yepompo yezinyembezi kanye nokulethwa komoyampilo usuku lonke.
Amaphrofayli afanelekile esiguli ahlanganisa lawo ane-corneal astigmatism evamile kanye nokukhathazeka mayelana nokushintshashintsha kokubona kokuzungezisa amalensi noma amalensi athambile kanye namakhontolo ekhoneal angajwayelekile.
Kuleyo mikhuba elwela ukuthola ama-grooves ngezinye izindlela zamalensi, iHybrid iyindlela enhle futhi enenani.
Uma kuziwa emehlweni anama-nuances amaningi, ama-contact lens angafanelekile angandisa ingozi yezinkinga ezifana ne-corneal scarring. ukuqoqa okuvelayo kwe-cornea, inqubo ethatha imizuzu engaphezu kwengu-2, futhi usebenzise lokhu ukuze uklame amalensi akhethekile afana ne-contour eqondile yeso ngalinye.Amalensi akhiqizwa yile nqubo anikeza ogqokile ukuzinza nokunethezeka okukhulu.
Ukumbozwa kwendawo enkulu kanye nokuqina kwesikhunta se-corneal kuthuthukisa ukunethezeka nokubona, futhi kuzinzile kunamalensi endabuko, ama-GP amancane noma ama-hybrid.
Lawa ma-scleral lens akhethekile angaklanywa ukuthi avumelane nokukhuphuka kwe-corneal kanye nokungahambi kahle okutholakala ezimeni ze-ectatic.OKUHLOSIWE: Amalensi amaningi e-presbyopia nokuhlinzwa kwe-corneal okwedlule.
Isiphetho Amalensi okuxhumana akhethekile abe nomthelela omkhulu ku-optometry.Ukwazi nokwabelana ngezinzuzo zawo kuwuhambo ama-OD amaningi angazange aluhlole ngokugcwele.
Kodwa-ke, lapho isikhathi sichithwa ekuxazululeni izinkinga zokubona kahle, ukufaneleka kanye nekhwalithi yokunakekelwa, ukwaneliseka kwesiguli kuyakhuphuka.Eqinisweni, abantu abaningi abagqoka amalensi ochwepheshe banelisekile ngamalensi abo angokwezifiso kangangokuthi bayanqikaza ukubuyela kwezinye izindlela.
Ngenxa yalokho, ama-OD abanika usizo bajabulela iziguli ezithembekile okungenzeka mancane kakhulu ukuthi ziyothenga kwenye indawo.Buka Okwengeziwe Ukufakwa Kwelensi Yokuxhumana
Isikhathi sokuthumela: Feb-28-2022
