Uma une- astigmatism , ungase ukwazi ukuhlinzwa kwe-LASIK . I-LASIK wuhlobo lokuhlinzwa okubuyiselwayo olusetshenziselwa ukulungisa amaphutha okubuyisa njenge-astigmatism, i- myopia , ne- hyperopia . Uma une-astigmatism, umbono wakho ungase uphazamise kude nakuseduze. Ungase uzizwe ukhathele ngemuva kokufunda futhi uthole ukuthi izincwadi namagama kubonakala sengathi uhlelwe.
Abantu abaningi abane-astigmatism bathole ukuhlinzwa kwe-LASIK kwindlela yokuphepha yokulungisa umbono.
Ngesizathu esithile, kukhona "inhlamba" mayelana ne-astigmatism uma kuziwa ku-LASIK. Kodwa-ke, iziguli eziningi ezine-astigmatism zingaba nokuhlinzwa kokulahla kwe-laser. Okuningi kwalokhu kubangelwa ukuthi yiloluhlobo lwangempela lwenkinga yombono evunyiwe yi-FDA ye-LASIK.
Kuyini i-Astigmatism?
I-Astigmatism ivame ukuqondakala kahle. Abantu bane-astigmatism, hhayi i-astigmatism. Yinkinga yombono ngokuvamile ebangelwa i-cornea, isakhiwo esicacile se-dome-like on the front of the eye, esinomumo ofana nebhola, hhayi ibhola. Ngakho-ke, kunamandla amaningi noma ukuvinjelwa okungaphezulu kwesinye se-meridian, njengesibonelo kuma-degrees angu-90, kunokuba kunesiphambano esingaphansi kwe-meridian kuma-180 degrees. Nakuba iningi lama-astigmatism livame ukuba ne-astigmatism, i-one ingaba ne-astigmatism lenticular.
I-cornea ingaba yinkimbinkimbi noma iyindilinga ngokuphelele, kodwa i-lens ngaphakathi kweso inegunya elinamandla.
Indlela i-Astigmatism elinganiselwa ngayo
I-Astigmatism ilinganiswa ne-togragrapher ye-corneal. I-corneal topographer umshini odweba i-dis of lights ku-cornea. Idatha ebonakalayo emuva ikhombisa ukuvuthwa phezu kwe-cornea yonke esetshenziselwa ukubala inani nesiqondiso se-astigmatism.
Inani lamandla adingekayo ukulungisa i-astigmatism lilinganiswa ne-phoropter, insimbi esetshenziswa lapho udokotela ebuza, "Yikuphi okungcono, owodwa noma amabili?" Odokotela basebenzisa futhi i-aberrometer yangaphambili ukuze babone ukuthi i-astigmatism ithinta kanjani izinga lombono wakho.
Ezinye Izindlela Zokulungisa I-Astigmatism
Ngenkathi abantu abaningi abane-astigmatism bengaba ne-LASIK, abanye abantu bane-astigmatism eningi kakhulu ukuze i-laser ilungise. Kodwa-ke, ngezinye izikhathi, abantu bangaba nenqubo eyengeziwe ebizwa ngokuthi i-astigmatic keratectomy (AK) ukulungisa noma iyiphi i-astigmatism esele. I-keratectomy ye-Astigmatic isebenzisa inqubo eyenziwe ethandwa kakhulu kuma-1980 okuthiwa yi-RK, noma i-keratectomy ephezulu. Enkambisweni ye-AK, udokotela ohlinzayo onekhono wenza izincazelo ezincane kwezinye izindawo eziyinhloko ekolnea ukwenza i-cornea ibe yinkimbinkimbi. Lokhu ngezinye izikhathi kuhlanganiswe nenye inqubo engacacile ebizwa ngokuthi i-LRI, noma i-limbal incision relaxation. I-LRI yenziwa emaphethelweni ahlukile we-cornea okubangela ukuphazamiseka okuncane kuleyo ndlela.
Ukuhlola okuphelele kombono wakho kuzodingeka ukuthi unqume ukuthi ungumuntu ozobhalwa yini nge-LASIK. Uhlobo nobunzima be-astigmatism yakho kuzokusiza ophthalmologist wakho ukuthi anqume ukuthi ukuhlinzwa kwe-LASIK kuzokuzuzisa yini.
Abanye abantu abane-astigmatism akufanele babe ne-LASIK, njengoba ezinye izimfanelo nezici zamehlo abo zibavimbela ukuba nomphumela ophumelelayo.
Umthombo:
Azar, Dimitri T. noDouglas D. Koch. "I-LASIK: Izimfuneko, Izindlela Zokuhlinzeka Nezinkinga." UMarcel Dekker, Inc. 2003.