I engaba ugobile lens

Uyini engaba ugobile lens? Kanjani ukubala ke? Lo mbuzo enikezwa wonke umuntu unquma ukugqoka contact lens for umbono ukulungiswa, futhi ngibathumile yokukhanya. Impendulo ngqo yalo mbuzo ungayithola kuphela ukunikeza ophthalmologist okhokhelwayo. Uma engaba ugobile lens niyobuthwa okungalungile, wena engozini hhayi kuphela ngcono mbono, kodwa futhi kwenze kube sibi kakhulu. Amehlo akho kuyoba ungakhululekile, ayothola ukucindezeleka, futhi - ukuqaleka njalo.

I engaba ugobile lens esifanelana umuntu othize, incike isakhiwo yeso. I lens igqoke cornea esweni, futhi ngenxa yalokho kumelwe ukuphinda injalo ngokunembe ngangokunokwenzeka. Ubukhulu emgomeni yeso cishe izinkomba ezilandelayo:

ubude eksisi optical kuyinto 24 mm,

ocular yenkabazwe Ubude 23.6 mm,

futhi ububanzi mpo kuyinto 23.4 mm.

Umuntu onjalo indices ezivamile oyifunayo ugobile engaba lens 8.6. Lenses nge izinkomba of 8.3 kuya 8.8 Kulula ukuthola emakethe evulekile. Uma ngeziphambeko okukhulu kusukela amabanga evamile ukubheka imikhiqizo zenziwa oda contact lens. Kuyadingeka ukwenza indaba emfushane ka-lens elifiswayo kokubonisana yangaphakathi kudokotela wezifo zamehlo.

Njengoba udokotela inquma ezifanele ugobile engaba lens? Ngenxa yale njongo kukhona indlela ekhethekile okuthiwa autorefractometry. Oculist yokwenza ucwaningo olunzulu ngendaba ye-cornea ngumuntu izindlela zokuxilonga ikhompyutha. Inqubo kuthatha imizuzu embalwa nje. Indlela kusekelwe autorefractometry emisebeni isimiso ithuluzi yokukhanya infrared. Izinzwa fixed ugongolo isithombe ukuze ukubonakaliswa kwayo okuvela retina futhi ngemva kwaso. Imiphumela cwaningo retina eziningi ukwaziswa okuwusizo ukuze umuntu uya ukuthenga lens. I engaba ugobile - lena eyodwa nje izinkomba, inqubo futhi kunikeza umbono walokho umehluko ngephutha yezokubona phakathi kwamehlo ezimbili waphawula, futhi inquma inani astigmatism. Njengoba iphuzu kokungathembeki wasebenzisa umfanekiso ngokungenamkhawulo ezikude.

Okufanele ukwenze uma lens kakade bathenga, kanye engaba ugobile lens ungathandi? Uma umehluko lingaphansi kuka 0.2, odokotela beluleka ukuzama lens sizigqoke uma ukuqaleka yinto hhayi palpable. Ngokuvamile eyodwa lens nomkhiqizi nge engaba ugobile zivumelana 8.5 kuya lens kusuka kwenye nomkhiqizi nge 8.6 engaba. Uma ukuphambuka idlula 0.2, lezi lens oxhumana naye akakwazi ezigugile noma kunjalo!

Ziyini izimpawu kanye nokuhlukumezeka wahlupheka abantu begqoke lens, ingafaneleki? Uma umuntu ofaka lens convex kuka idingwa isakhiwo kwamehlo akhe, ukuhamba kwelensi enjalo kunzima. I inhlamvu yeso kuyoba ngaphansi kwengcindezi njalo, imithambo yegazi kuthiwa constricted, okuyinto nakanjani abangele ububomvu kwamehlo zonke. Okungenzeka ukwephulwa slezoobmena njengoba izinyembezi lwadlulela ngemehlo, okuyinto eduze eseduze cornea. Usongo Izifo ukuvuvukala ukwandisa futhi umbono iba engazinzile. Uma Nokho, lo engaba ugobile lens phezu inkomba oyifunayo, i-lens kuyoba mobile kakhulu. Kalula nje ingase iwe amehlo noma imbangela Ukubhidliza, ukulimaza cornea. I lens flat kulula ukuthutha kude cornea, futhi ngeke ubone cishe lutho. Wena uyazi ukuthi ngeke alimale ukuze blink, ngoba lens azothinta imisipha iso engenhla, futhi ngaso sonke isikhathi lingena iso okusanhlamvu okuhle isihlabathi, noma amehlo hizinisi ngeke batshelwa futhi redden.

Khetha kudokotela wezifo zamehlo nge engaba ezifanele ugobile lens bese nibheka umhlaba ngamehlo ububanzi! Myopia futhi hyperopia - akusiyo isizathu ukulahla injabulo zonke izimbali kanye nemibala zokuphila. Thola lens contact, okuzoba esilungele wena.