Indawo ebonakalayo

Indawo ebonakalayo ibhekisa kwindawo iyonke apho izinto zinokubonwa kwicala (lomda) umbono njengoko ujonge amehlo akho kwindawo esembindini.

Eli nqaku lichaza uvavanyo olulinganisa intsimi yakho ebonakalayo.

Ukujongana novavanyo lwentsimi ebonakalayo. Olu luqwalaselo olukhawulezayo nolusisiseko lwentsimi ebonakalayo. Umboneleli wezempilo uhleli ngqo phambi kwakho. Uya kugquma iliso elinye, kwaye ujonge ngqo phambili kwelinye. Uya kucelwa ukuba uxele xa usibona isandla somvavanyi.

Iscreen setangent okanye uvavanyo lwentsimi yeGoldmann. Uya kuhlala malunga ne-3 yeenyawo (iisentimitha ezingama-90) kude neflethi, emnyama nelaphu lesikrini ekujoliswe kulo embindini. Uya kucelwa ukuba ujonge kwindawo ekujoliswe kuyo kwaye wazise umvavanyi xa ubona into ehamba kumbono wakho osecaleni. Into idla ngokuba yipini okanye intsimbi ekupheleni kwentonga emnyama eshukunyiswa ngumvavanyi. Olu vavanyo lwenza imephu yeedigri zakho zombono ezingama-30. Olu vavanyo luhlala lusetyenziselwa ukufumanisa iingxaki zobuchopho okanye imithambo-luvo.

Umjikelezo weGoldmann kunye neparimetry ezenzekelayo. Kuzo zombini iimvavanyo, uhlala phambi kwedome ekhonkxiweyo kwaye ujonge kwithagethi embindini. Ucofa iqhosha xa ubona ukukhanya okuncinci kwimbonakalo yakho esecaleni. Ngokuvavanywa kweGoldman, ukukhanya kukhanya kulawulwa kwaye kwenziwa imephu ngumvavanyi. Uvavanyo oluzenzekelayo, ikhompyuter ilawula ukukhanya kunye nemephu. Iimpendulo zakho zinceda ukufumanisa ukuba unesiphene kumhlaba obonakalayo. Zombini ezi mvavanyo zihlala zisetyenziselwa ukulandelela iimeko ezinokuba mandundu ngokuhamba kwexesha.

Umboneleli wakho uya kuxoxa nawe malunga novavanyo lwentsimi ebonakalayo ekufuneka yenziwe.

Akukho lungiselelo lukhethekileyo luyimfuneko.

Akukho kuphazamiseka kuvavanyo lwentsimi ebonakalayo.

Olu vavanyo lwamehlo luya kubonisa ukuba ngaba ulahlekelwe ngumbono naphi na kwicandelo lakho lokubonwayo. Ipateni yokulahleka kombono iya kunceda umboneleli wakho afumanise unobangela.

Umbono wembonakalo uqhelekile.

Iziphumo ezingaqhelekanga zinokubangelwa zizifo okanye ukuphazamiseka kwenkqubo ye-neva (CNS), ezinje ngamathumba awonakalisa okanye acinezele (cofa) iinxalenye zobuchopho ezijongana nombono.

Ezinye izifo ezinokuchaphazela intsimi ebonakalayo yamehlo zibandakanya:

• Seswekile
• I-glaucoma (ukunyuka kwengcinezelo yamehlo)
• Igazi elonyukayo
• Ukwehla okuhambelana nobudala be-macular (ukuphazamiseka kwamehlo okutshabalalisa ngokuthe ngcembe, umbono ophakathi)
• Multiple sclerosis (ingxaki echaphazela i-CNS)
• I-Optic glioma (ithumba le-optic nerve)
• I-thyroid engasebenzi (hyperthyroidism)
• Ukuphazamiseka kwendlala yebhinqa
• Isixhobo sokugcina (ukwahlula i-retina ngasemva kweliso kumaleko ayo axhasayo)
• Ukubetha
• I-arteritis yethutyana (ukudumba kunye nomonakalo kwimithambo ehambisa igazi entlonzeni nakwezinye iinxalenye zentloko)

Uvavanyo alunabungozi.

Umjikelezo; Uvavanyo lwescreen setangent; Uvavanyo lwe-perimetry oluzenzekelayo; Uvavanyo lwentsimi yeGoldmann; Uvavanyo lwe-Humphrey lwentsimi ebonakalayo

• Iliso
• Uvavanyo lwentsimi ebonakalayo

IBudenz DL, uLind JT. Ukuvavanywa kwendawo ebonakalayo kwi-glaucoma. Ku: Yanoff M, Duker JS, ii-eds. Ophthalmology. Umhla we-5. IPhiladelphia, PA: Elsevier; I-2019: isahluko 10.5.

UFeder RS, u-Olsen TW, uPrum BE uJr, et al .; IAmerican Academy yeOphthalmology. Uvavanyo olupheleleyo lokujonga iliso kubantu abadala luthanda izikhokelo zepatheni yokwenza. Ophthalmology. Ngo-2016; 123 (1): 209-236. IINKCUKACHA: 26581558 www.ncbi.nlm.nih.gov/pubmed/26581558.

IRamchandran RS, iSangave AA, iFeldon SE. Iindawo ezibonakalayo kwisifo se-retinal. Ku: Schachat AP, Sadda SVR, Hinton DR, Wilkinson CP, Wiedemann P, ii-eds. URetina kaRyan. Umhla wesi-6. IPhiladelphia, PA: Elsevier; I-2018: isahluko 14.