Iimfihlo ezingaphakathi kwamehlo! Yintoni oyibonayo ngokwenene nge-(Retinal Imaging)?

Ngaba wakha wazibuza ukuba kwenzeka ntoni ngaphakathi kwamehlo akho? Ngamanye amaxesha xa usiya kuhlolwa amehlo, ugqirha uthi, "Sifanele sithathe umfanekiso wangaphakathi kweliso lakho." Yiloo nto ibizwa ngokuba yi-"Retinal Imaging." Ngamafutshane, ithatha imifanekiso yedijithali yangaphakathi kweliso lakho, ngakumbi i-retina engasemva kweliso lakho. Olu luvavanyo olubaluleke kakhulu.

Ngoko ke yintoni le `(Umfanekiso weRetinal)`?

Kulungile, masithethe kancinci ngeenkcukacha. Ugqirha wakho wamehlo angasebenzisa obu buchwephesha bubizwa ngokuba yi- 'Retinal Imaging'' ukuthatha imifanekiso yedijithali, okanye iifoto, zeendawo ezibuthathaka ngaphakathi kweliso lakho, ngasemva kweliso lakho. Eli candelo kulapho i-retina (ekwaziwa ngokuba yi-macula) kunye ne-optic nerve yakho zikhoyo, ezibaluleke kakhulu.

Ngokwesiqhelo, senza olu vavanyo xa senza uvavanyo olupheleleyo lwamehlo, okanye ukuze sibone ukuba uneengxaki ezithile zamehlo kunye nendlela ezilawulwa ngayo. Khawuthelekelele, kule mifanekiso, sinokubona ukuba uneengxaki ezithile zamehlo, kwaye ukuba azinyangwa, ungalahlekelwa kukubona . Kwakhona, ukuba uthatha naluphi na unyango, lunokubona ukuba luphumelela kangakanani. Ngokuthatha le mifanekiso ngokuqhubekayo iminyaka, ugqirha unokuchonga ngokukhawuleza notshintsho oluncinci ngaphakathi kweliso. Ugqirha uya kukuxelela ukuba loluphi uhlobo lovavanyo "lwe-Retinal Imaging" olufunekayo kunye nokuba kufuneka lwenziwe kangaphi.

Yintoni enokufunyanwa kolu vavanyo?

Olu luvavanyo lokuxilonga olunokufumanisa izinto ezininzi. Jonga olu luhlu:

• Ukudumba kwe-macular okunxulumene nesifo seswekile .
• Ukonakala kwe-retina okubangelwa sisifo seswekile kubizwa ngokuba yi -diabetic retinopathy .
• Umhlaza wamehlo .
• Imeko yeGlaucoma .
• Ukonakala kwe-macular (umonakalo onxulumene nobudala kwi-macula).
• Umngxuma kwi-macula `(umngxuma we-macular)` .
• Ukutsala okanye ukushwabana kwe-macula `(Macular pucker)` .
• Ukudumba kwe-'posterior uvea', isicwili esingaphakathi kweliso, kubizwa ngokuba yi -'posterior uveitis' .
• Ukuqhekeka kwe-retina .
• Ukuvaleka kwemithambo ye-retinal .

Khawucinge nje, ukuba le mifanekiso ibonisa into efana nale, ugqirha wakho uya kukucebisa unyango olufanelekileyo. Ngamanye amaxesha kuya kufuneka uthathe imifanekiso rhoqo ngamaxesha athile (i-serial imaging) . Oku kwenzelwa ukubona ukuba uqhuba njani kwaye unyango luphumelela kangakanani.

Lwenziwa njani olu vavanyo lokujonga imifanekiso ye-retina?

Kukho iindlela ezintathu eziphambili zokuthatha imifanekiso yedijithali yomva weliso, i-'fundus' (njengoko besitshilo ngaphambili, i-'fundus' ngasemva kweliso). Iingcali zamehlo zisebenzisa ezi ndlela.

1. Uzibona njani iifoto ze-fundus ezinemibala?

Oku kuquka ukuthatha imifanekiso yangaphakathi kweliso lakho usebenzisa izixhobo ezibizwa ngokuba ziikhamera ze-fundus. Oogqirha bebesebenzisa le ndlela amashumi eminyaka. Xa ikhamera ithatha imifanekiso, ubona ukukhanya okuqaqambileyo . Ngobuchwepheshe obutsha, unokufumana imifanekiso yedijithali ecacileyo kakhulu, enesisombululo esiphezulu. Ezinye iikhamera zinokuthatha indawo enkulu ye-fundus yakho, okanye umbono obanzi . Oku kuvumela oogqirha ukuba babone indawo enkulu ye-retina yakho ngaxeshanye. Enye yeenzuzo ezinkulu zale ndlela kukuba inokuyibona ngokucacileyo imithambo yegazi yakho. Oku kunokuba luncedo kakhulu ekufumaneni izinto ezifana ne-retinopathy enxulumene nesifo seswekile, enokonakalisa i-retina.

2. Yintoni i-Optical Coherence Tomography (OCT)?

Olu luvavanyo oluqhelekileyo kakhulu. Luthatha umbono onqamlezileyo weengqimba ze-retina yakho, ingakumbi i-macula kunye ne-optic nerve. Oku kukuvumela ukuba ubone ingqimba nganye ye-retina ngokwahlukeneyo kwaye ulinganise ubukhulu bayo. Oku kubalulekile ekuxilongeni iimeko ezifana ne-macular edema enxulumene nesifo seswekile kunye ne-macular degeneration.

Nokuba usebenzisa yiphi indlela kolu vavanyo, okufuneka ukwenze kukuhlala kamnandi esitulweni uze ubeke ubuso bakho kufutshane nekhamera. Ugqirha okanye omnye umntu uza kukubonisa apho umele ubeke khona ibunzi nesilevu sakho. Eyona nto ibalulekileyo kukuba akukho nto ingena ngaphakathi kweliso lakho ngeli xesha lovavanyo.

Ngamanye amaxesha oogqirha banokusebenzisa enye okanye ezingaphezulu kwezi ndlela zingasentla ngaxeshanye. Okanye, banokwenza olunye uvavanyo olukhethekileyo olubizwa ngokuba yi -'fluorescein angiography' kunye nale ndlela. Kule ndlela, kufakwa idayi encinci emthanjeni osengalweni yakho. Le dayi ihamba negazi lakho iye kwimithambo yegazi engaphakathi kwamehlo akho. Oku kunokubona ngokucacileyo ukuba kukho naziphi na iingxaki ezivalelekileyo okanye ezinye iingxaki kuloo mithambo yegazi. Le yinkqubo encinci engonakalisi amehlo akho.

Kwenzeka ntoni ngaphambi kovavanyo?

Okokuqala, ugqirha uza kukuchazela ngolu vavanyo kunye nesizathu sokuba lwenzelwe wena. Angacela imvume yakho aze afumane utyikityo lwakho.

Oogqirha badla ngokufaka amaconsi emehlweni akho ukuze bavule amehlo.Isizathu soku kukuba ikhamera ithatha imifanekiso ngaphakathi kweliso, njengefestile ebizwa ngokuba yi-black iris, kwaye xa ikhulisiwe, ungathatha imifanekiso ecacileyo. Ukuba uthatha eli yeza, ngokuqinisekileyo kufuneka umntu akuse ekhaya. Ngenxa yokuba amehlo akho aya kuba luzizi kwaye evakalelwa ngaphandle, awuyi kukwazi ukuqhuba iiyure ezimbalwa.

Kwenzeka ntoni ngexesha lovavanyo?

Enyanisweni, zombini iimvavanyo ze-`(Retinal imaging)`, ezizezi `fundus photography` kunye ne-`OCT`, zikhawuleza kwaye azibuhlungu . Nantsi into eyenzekayo:

• Uza kuhlala esitulweni phambi komatshini wokuthatha imifanekiso. Ugqirha okanye umncedisi uza kukunceda uzive ukhululekile.
• Udinga ukubeka isilevu sakho kwindawo eyenzelwe sona, kwaye umise ubuso bakho ngendlela yokuba ibunzi lakho licinezelwe kancinci kwibhari encinci.
• Ugqirha ulungisa ikhamera kakuhle aze aqalise ukuthatha imifanekiso. Uthatha imifanekiso yeliso elinye ngexesha.
• Usenokucelwa ukuba ujonge isibane esiluhlaza . Isibane sikhanya kancinci, ngoko ungaziva ungakhululekanga, kodwa okwexeshana nje elifutshane.
• Xa ugqibile ukuthatha imifanekiso, uza kucelwa ukuba usuke kwikhamera.

Ngokwesiqhelo, olu vavanyo lwe-`(Retinal imaging)` luthatha malunga nemizuzu emi-5 ukuya kweli-10 . Nangona kunjalo, ukuba ugqirha wenza uvavanyo lwe-`fluorescein angiography`, lungathatha malunga nemizuzu engama-30.

Uziva njani emva kovavanyo?

Ukuba ugqirha ukufake iyeza emehlweni akho waza wakhulisa iliso lakho elimnyama, amehlo akho aya kuba luzizi kwaye abe buthathaka kangangeeyure ezimbalwa. Ngoko ke, phumza amehlo akho. Musa ukuqhuba imoto, ukufunda, okanye ukujonga ifowuni okanye ikhompyutha yakho. Kulungile ukuba amehlo akho anxibe iiglasi zelanga xa uphuma.

Ngaba kukho umngcipheko kule nto?

Ukujonga nge-retinal, okubizwa ngokuba yi-fundus photography kunye ne-OCT , kukhuselekile kakhulu kwaye akukho zingozi zaziwayo . Konke ugqirha akwenzayo kukuthatha imifanekiso yedijithali yangaphakathi kweliso lakho esebenzisa ikhamera.

Nangona kunjalo, i-fluorescein angiography ikwaluvavanyo olungenamngcipheko uphantsi, kodwa inokubangela ezinye iziphumo ebezingalindelekanga. Umzekelo, ulusu lwakho lunokuba tyheli kancinci, okanye umchamo wakho unokuba tyheli okanye orenji emnyama . Nangona kunjalo, ezi zinto ziya kuphela zingadlulanga iiyure ezingama-24.

Kunqabile kakhulu ukuba kubekho i-allergy ( umz., ukurhawuzelela kwesikhumba, ukurhawuzelela) kwi-dye fluorescein. Umngcipheko we- anaphylaxis (i-allergy enzima kakhulu) uphantsi kakhulu. Abantu abanovakalelo kwi-fluorescein banokufumana oku kulandelayo:

• Isiyezi
• Umlomo owomileyo
• Ukunyuka kwesantya sentliziyo
• Incasa yesinyithi emlonyeni wabo (oku kuhlala ixesha elifutshane kuphela)
• Isicaphucaphu okanye ukuhlanza
• Ukuthimla

Eyona nto ibalulekileyo kukuxelela ugqirha wakho ngoko nangoko ukuba uziva into engaqhelekanga.

Zeziphi iziphumo endiza kuzifumana?

Olu vavanyo luvelisa imifanekiso yedijithali ye-retina. Ugqirha uza kuyihlola ngononophelo imifanekiso. Angakubonisa imifanekiso aze achaze ukuba ithetha ukuthini. Le mifanekiso iya kugcinwa njengenxalenye yerekhodi yakho yezonyango. Ugqirha angayijonga kamva aze ayithelekise nemifanekiso emitsha ukuze abone ukuba amehlo akho atshintshe njani.

Ndingaqhagamshelana nini nogqirha?

Ukuba unemibuzo ngaphambi kokuba uze kolu vavanyo, okanye ukuba ungathanda ulwazi oluthe kratya malunga neziphumo zovavanyo, ungathandabuzi ukubuza ugqirha wakho . Uya kukuvuyela ukuphendula imibuzo yakho aze akuncede uzive ukhululekile malunga nayo yonke le nkqubo.

Izinto ekufuneka sizikhumbule koku (Umyalezo Wokuya Ekhaya)

Ngamafutshane, `(Retinal Imaging)` luvavanyo oluxabisekileyo kakhulu olunokujonga iindawo ezibuthathaka ngaphakathi nangasemva kweliso lakho. Oku kubalulekile ekufumaneni kwangethuba nasekulawuleni inani lezifo ezinokukhokelela ekulahlekelweni kokubona ukuba azinyangwa. Akukho nto yokoyika kuba akukho nto ifakwayo elisweni, kwaye lonke uvavanyo lukhawuleza kwaye alunantlungu. Thetha nogqirha wakho ukuze ufumane okungakumbi malunga nokuba olu vavanyo `(Retinal Imaging)` lubaluleke kangakanani kwimeko yakho. Emva koko uya kuba nokuqonda okungcono koku.

I- Retina, uvavanyo lwamehlo, uvavanyo lwe-OCT, izifo zamehlo, umbono, ugqirha wamehlo, ikhamera ye-fundus