Ukuphazamiseka kwemithambo-luvo
Umxholo
Isishwankathelo
Imithambo-luvo ye-optic yinyanda engaphezu kwesigidi semisonto yemithambo ehambisa imiyalezo ebonakalayo. Unokudibanisa ngasemva kweliso ngalinye (i-retina) kwingqondo yakho. Ukonakala kwimbilini ye-optic kunokubangela ukulahleka kombono. Uhlobo lokulahleka kombono kunye nokuba lukhulu kangakanani kuxhomekeke kwindawo apho umonakalo wenzeka khona. Inokuchaphazela elinye okanye omabini amehlo.
Kukho iintlobo ezahlukeneyo zokuphazamiseka kwemithambo-luvo, kubandakanya:
- I-Glaucoma liqela lezifo ezingunobangela ophambili wobumfama eMelika. I-Glaucoma idla ngokwenzeka xa uxinzelelo lolwelo ngaphakathi kwamehlo lonyuka kancinci kwaye lonakalisa imithambo-luvo ye-optic.
- I-optic neuritis kukudumba kwethambo le-optic. Izizathu zibandakanya usulelo kunye nezifo ezinxulumene nokuzikhusela komzimba ezinjenge-multiple sclerosis. Ngamanye amaxesha unobangela awaziwa.
- I-optic nerve atrophy ngumonakalo kwi-optic nerve. Oonobangela kubandakanya ukungahambi kakuhle kwegazi kwiso, izifo, ukwenzakala, okanye ukuvezwa kwezinto ezinobuthi.
- I-optic nerve head drusen ziipokotho zeprotein kunye neetyuwa zekhalsiyamu ezakha kwimithambo-luvo ngokuhamba kwexesha
Nxibelelana nomboneleli wakho wezempilo ukuba unengxaki yokubona. Uvavanyo lokuphazamiseka kwemithambo-luvo kunokubandakanya iimviwo zamehlo, i-ophthalmoscopy (uvavanyo lwasemva kweliso lakho), kunye novavanyo lokucinga. Unyango luxhomekeke kwisifo onaso. Ngokuphazamiseka kwemithambo-luvo, unokufumana umbono wakho kwakhona. Kwabanye, akukho lonyango, okanye unyango lunokuthintela kuphela ukulahleka kombono.
Ithandwa
Photophobia