Ngokuvamile, sekuvele kukhona umlando we-strabismus ebuntwaneni. Lokhu kuntuleka kokufana kwezimbazo ezimbili ze-ocular kungabuye kukhulunywe ngakho ngemva kweminyaka eminingi ngezizathu eziningana.

– Kuyimpinda futhi ukuchezuka kuyafana nasebuntwaneni.

- I-strabismus yayingakalungiswa ngokuphelele (i-strabismus esele).

– Ukuchezuka kuyahlehliswa: lokhu kungenzeka ngesikhathi kuvela i-presbyopia, ubunzima obukhethekile bokubona, ukulahlekelwa ukubona esweni elilodwa, ukuhlinzwa kwe-ophthalmologic (i-cataract, ukuhlinzwa kwe-refractive), ukuhlukumezeka, njll.

Ngezinye izikhathi namanje, le strabismus ibonakala okokuqala ebudaleni, okungenani ngokubukeka: ngempela, abanye abantu bebelokhu bethambekele ekuphambukeni ezimbazoni zabo ezibukwayo, kodwa kuphela lapho amehlo abo ephumule (i-intermittent strabismus , i-latent). Lokhu kuyi-heterophoria. Uma ungaphumuli, lokhu kuchezuka kuyanyamalala futhi i-strabismus ngakho-ke ngokuvamile ayibonwa. Kodwa uma kwenzeka ukucindezeleka okukhulu - isibonelo, ngemva kwamahora amade achithwa esikrinini noma umsebenzi oseduze isikhathi eside noma i-presbyopia engakhokhelwa - ukuphambuka kwamehlo, kubonakala (i-decompensation ye-heterophoria). Kuhambisana nokukhathala kwamehlo, ikhanda elibuhlungu, ubuhlungu obungemva kwamehlo, ngisho nokubona kabili.

Okokugcina, isimo esiyivelakancane yileso se-strabismus eyenzeka kumuntu omdala ngaphandle komlando kulolu hlangothi, kodwa esimweni esithile se-pathological: i-myopia ephezulu, umlando we-retinal detachment, i-Graves 'hyperthyroidism, i-oculomotor ukukhubazeka. kushukela, ukopha ebuchosheni, i-multiple sclerosis noma isimila sobuchopho. Umbono okabili (i-diplopia) wokufakwa okunonya unikeza isixwayiso ngoba kunzima ukubekezelela nsuku zonke.