Amagnethi afakwe ngemuva kwamehlo omuntu angaphatha i- nystagmus , isimo esibangela ukunyakaza kwamehlo okuzibandakanya. I-Nystagmus ithinta cishe umuntu oyedwa kwabangu-400, okwenza kube nesigqi, ukukhanya kwamehlo, okuvame ukubhekwa ngokuthi "amehlo okudansa." Ucwaningo lwamacala, olushicilelwe ku- Ophthalmology , luwokuqala ukusebenzisa ukufakelwa ukulawula ukunyakaza kweso lokuzibandakanya.
Ucwaningo lwe-Case-I-Treatment entsha yeNystagmus
Abacwaningi base-UCL naseYunivesithi yase-Oxford bachaza ukuthi lolu cwaningo luwukusetshenziswa kokuqala okuphumelelayo kokufakelwa okubizwa ngokuthi i-oculomotor prosthesis. Iqoqo lamaginethi lafakwa endaweni engaphansi kweso ngalinye lesiguli esathuthukisa i-nystagmus eminyakeni engama-40. Amakhomitha afakwe ukulawula ukunyakaza kwamehlo okuzibandakanya futhi avimbele ukungena.
Abacwaningi babefake amakhomitha esiteji sokungena emzimbeni ngamunye. Omunye umshini wawunamathele emisipha ye-extraocular elawula ukunyakaza kwamehlo. Amakhompi alawula ngempumelelo uphawu lwe-classic lwe-nystagmus, ukunyakaza kwamehlo okuzibophezela, ngoba amandla okunyakaza okufiphazayo abuthakathaka kunokunyakaza kwamehlo okuzithandela. "Ngenhlanhla, amandla okusetshenziselwa ukunyakaza kwamehlo okuzithandela angaphezu kwamandla abangela ukunyakaza okukhulu, ngakho-ke sasidinga amakhomitha amancane nje kuphela, ukunciphisa ingozi yokukhubaza iso," kusho uProfesa Quentin Pankhurst owahola ukuklama kwe-prosthesis.
Isiguli sathola ngokushesha kusuka enkambisweni. Ubuningi bokubukeka kwesiguli kwakungcono kakhulu, kungabi nomthelela omubi ekuhambeni kokusebenza kokuhamba. Izimpawu zakhe zihlale zizinzile iminyaka engaphezu kwengu-4, okwenza ukuba abuyele emsebenzini futhi ahlanganyele emisebenzini yansuku zonke njengokufunda nokubuka ithelevishini.
Isiguli sinesipiliyoni se- diplopia noma umbono ophindwe kabili, kodwa saqala ngaphambi kwe-nystagmus.
Akuwona wonke umuntu onenkinga ye-nystagmus ongazuza ezimpilweni zamagnetic, phawula abacwaningi. Izimplantshi zamagnetic azifanelezi iziguli ezidinga ukuhlolwa kwe- MRI ejwayelekile.
Kuyini i-Nystagmus?
I-Nystagmus iyisiginci sokungqubuzana noma ukuzulazula kwamehlo. I-Nystagmus ingaba enezingqimba noma iqondile noma ishukuthele esiqondisweni se-diagonal. Ezimweni eziningi, i-Nystagmus ikhona kusukela ekuzalweni futhi ingaba yingxenye yamanye ama-syndromes okuthuthukiswa.
I-Nystagmus ingaba khona njalo noma ikhutshwe yizinyathelo ezithile zamehlo. Uma i-nystagmus inamandla ngokwanele, ubunzima obubonakalayo buyohlupheka njengoba amehlo elokhu ehamba phambili nangemva. Izikhathi eziningi, abantu abane-nystagmus babamba ikhanda noma amehlo ngendlela ethile ehlisa inani le-nystagmus.Lokhu kuthiwa yi-null point.
Kunezinhlobo ezimbili ze-nystagmus: zizalwa futhi zitholakale.
I-nystagmus ye-Congenital
I-nystagmus ye-congenital iqala ezinganeni, ngokuvamile phakathi kwamaviki ayisithupha nezinyanga ezintathu ubudala. Izingane ezinalesi simo zivame ukuba nazo kokubili amehlo, ezihamba eceleni. Ngokuvamile, odokotela abazi ukuthi yini ebangela isimo somntwana. Isimo ngezinye izikhathi sizuzwa njengefa.
Izingane ezine-nystagmus ngokuvamile aziboni izinto njengokuthi "ziyathuthumela." Kunalokho, zingase zibe nombono ongenangqondo.
Nystagmus etholakalayo
I-nystagmus etholakalayo kwenzeka kamuva ekuphileni. Kunemibangela eminingi, kufaka phakathi izimo zezokwelapha ezinkulu noma ukusetshenziswa kwezidakamizwa nokuphuza utshwala. Ngokungafani nezingane ezinezinsana ezinamazinyane ezibelethayo, abantu abadala abane-nystagmus bavame ukubika ukuthi izinto ezizungezile zibukeka sengathi zibukeka zikhululekile.
Izimbangela zeNystagmus
Isimo singathuthuka kusuka ezimweni eziningi ezihlanganisa:
Cataracts Congenital
Ezinye izinsana zizalwa ngokunyakaza okungazibandakanyi lapho zizalwa, ngokuvamile zibangelwa yi- cataract congenital . Ama-cataracts angama-congenital akhiqiza lapho i-lens yemvelo yeso liphendukile, livame ukuvela ngesikhathi sokuzalwa noma esemncane.
Ezinye izingane zingase zidingeke umshini wokugqoka i-eyeglass ukuze ubone ngokucacile. Kwezinye izimo, ukukhishwa kokuhlinzwa kwe-cataract kuphakanyisiwe.
Izinkinga ze-neurological
Ezinye izifo ze-neurological zingabangela i-nystagmus, njenge-tumor yobuchopho noma i-multiple sclerosis. Ukunyakaza kwamehlo okungabonakali kungase kuqhube kancane kancane nalesi sifo. Ezimweni eziningi, ukwelashwa kwe-muscle ye-eye akuyona into esebenzayo isikhathi eside.
Izimo zesistimu
I-Nystagmus ngezinye izikhathi iqala ngezifo ezithile zesistimu ezifana ne-albinism. I-Albin ingabangela nezinkinga zamehlo ezifana nokuzwela ukukhanya, ukungalungi kwamehlo kanye namaphutha okuphindaphinda kakhulu. Iris izoba nombukiso obala, okwenza umbala wamehlo ubonakale obomvu. I-nystagmus ingase ihlakulele ngenxa yezimo zezindlebe zangaphakathi, noma ubuthi obuvela ezidakamizweni, imithi yokuphuza utshwala noma imithi. Ukulawula noma ukuxazulula isimo se-systemic kunganciphisa ukunyakaza kwamehlo okuzibandakanya kwezinye izimo. Kodwa-ke, ezinye izimo zingadinga ukuhlinzwa emisipha yehlohlo ukuze kuncishiswe ukutholakala kwe-nystagmus.
Imithombo:
UPowell, uSelina. "Izimplantshi zamagnetic zilawula ukunyakaza kwamehlo okuzibandakanya noma amehlo okudansa." I-Optometry Namuhla (OT) 30 Juni 2017.
Boyd, Kierstan. "Kuyini i-Nystagmus?" I-American Academy of Ophthalmology (AAO), 1 Septemba 2017.