- Ulingo lwe-PRIMAvera kunye nabathathi-nxaxheba be-38 kumaziko e-17 kumazwe amahlanu: i-27 ye-32 ibuyele ekufundeni kwaye i-26 ibonise ukuphuculwa kwe-acuity yeklinikhi.
- Inkqubo ye-PRIMA: I-2x2 mm engenazingcingo ye-photovoltaic microchip esebenzisa ukukhanya kwe-infrared kunye neeglasi kunye neprosesa yokuvuselela i-retina.
- Ukhuseleko: Iziganeko ezimbi bezilindelwe kwaye ubukhulu becala zasonjululwa, kungekho nciphiso kumbono okhoyo weperipheral.
- I-Science Corporation ifake isicelo sogunyaziso eYurophu nase-U.S.; isisombululo kunye nophuculo lwesoftware luphantsi kophuhliso.
Ulingo lwezonyango lwamazwe ngamazwe lubonise ukuba a Ukufakelwa kweretina engenazingcingo kudityaniswe neendondo Inokubuyisela amandla okufunda kubantu abanokulahlekelwa ngumbono ophakathi ngenxa ye-geographic atrophy., uhlobo oluphambili lwe ukuwohloka kwe-macular ezinxulumene neminyaka (AMD)Idatha, epapashwe kwiNew England Journal of Medicine, yalatha ku ukuphuculwa kokusebenza okuthe kwade kwabonakala kungafikeleleki.
Ngaphezulu kwe isiqingatha sabo bagqibe unyaka omnye wokulandelela Baphinde bafumana amandla okuchonga oonobumba, amanani kunye namagama ngeliso elinyangwayo, kwaye uninzi olukhulu luxele ukusebenzisa inkqubo kubomi babo bemihla ngemihla kwimisebenzi eqhelekileyo njenge funda iposi okanye incwadanaAyilonyango, kodwa kukutsiba okuphawulekayo kokuzimela.
Yiyiphi ingxaki ejongene nayo kwaye ngubani othathe inxaxheba?
I-Geographic atrophy (GA) Kukwahluka kwe-atrophic ye-AMD kunye nonobangela ophambili wobumfama obungenakuguqulwa kubantu abadala; ichaphazela abantu abangaphezu kwezigidi ezihlanu ehlabathini lonke. Njengoko iqhubela phambili, i Umbono ophakathi uthotywa ngokufa kweefotoreceptors kwi-macula, ngoxa ukubona okusecaleni ngokuqhelekileyo kugcinwa.
Isincoko sePRIMAvera kuquka izigulane ezingama-38 ezineminyaka engama-60 ubudala nangaphezulu kumaziko ali-17 kumazwe amahlanu aseYurophu (eFransi, eJamani, eItali, eNetherlands naseUnited Kingdom). Kwabangama-32 abagqibe iinyanga ezili-12 zokulandelisa, abangama-27 bakwazi ukufunda kwakhona ngesixhobo baze abangama-26 (81%) bazuze a ukuphuculwa okubalulekileyo kwezonyango kwi-acuity yokubona.
Phakathi kwabathathi-nxaxheba, kwakukho iimeko eziphawulekayo zokuphucula: isigulane esinye sifikelelwe Qaphela iileta ezingama-59 ezongezelelweyo (imigca eyi-12) kwitshathi yamehlo, kwaye ngokomyinge ukuzuza kwakumalunga Iileta eziyi-25 (imigca emihlanu). Ukongeza, i 84% ingxelo usebenzisa umbono wokufakelwa ekhaya ukwenza imisebenzi yemihla ngemihla.
Uphononongo lwalukhokelwa ngu UJosé-Alain Sahel (kwiYunivesithi yasePittsburgh), UDaniel Palanker (kwiYunivesithi yaseStanford) y UFrank Holz (kwiYunivesithi yaseBonn), ngokuthatha inxaxheba kwamaqela afana Moorfields Eye Hospital London kunye namaziko anxulumeneyo eFransi nase-Itali.
Indlela inkqubo yePRIMA isebenza ngayo
Isixhobo sithatha indawo yeefotoreceptors ezonakeleyo sisebenzisa a 2x2 mm, ~ 30 μm ubungqingqwa be-photovoltaic microchip eguqula ukukhanya kube ziimpembelelo zombane vuselela iiseli ze-retinal eziseleyoAyinayo ibhetri: inikwa amandla kukukhanya ekufumanayo.
Isethi incediswa ngu iperi yeglasi enekhamera ethi ibambe indawo kwaye iyiphuhlise ukukhanya okukufutshane kwe-infrared phezu kofakelo. Olu qikelelo luthintela uphazamiseko kuwo nawuphi na umbono wendalo oseleyo kwaye luvumela uhlengahlengiso zoom kunye nochasaniso ukwenza iinkcukacha ezintle ezifunekayo ekufundeni zibe luncedo ngakumbi.
Kubumbeko lwangoku, implanti ine a 378 pixel / electrode uluhlu eyenza umbono omnyama nomhlophe weprosthetic. Abaphandi basebenza iinguqulelo ezintsha ezinesisombululo esiphezulu kunye nokuphuculwa kwesoftware ukuququzelela imisebenzi efana nokuqondwa kobuso.
Iziphumo zeklinikhi kunye nokuvuselelwa
Uhlalutyo lubonisa ukuba, xa usebenzisa inkqubo, abathathi-nxaxheba bayiphucule kakhulu indlela abaqhuba ngayo kwiimvavanyo zokufunda ezisemgangathweni. Kwanabo baqale ngokungakwazi ngokupheleleyo ukuchonga oonobumba abakhulu imigca emininzi ihambele phambili emva koqeqesho.
Ufakelo lwenziwa ngotyando lwamehlo ukuba ngokuqhelekileyo ihlala ngaphantsi kweeyure ezimbiniPhantse kwinyanga enye kamva isixhobo siyasebenza kunye nesigaba se ukubuyisela kwisimo sangaphambili esinzulu, kubalulekile ekufundeni ukutolika umqondiso kwaye uzinzise ukujonga kwakho ngeendondo.
Umba ofanelekileyo kukuba inkqubo ayiwunciphisi umbono okhoyo weperipheral. Ulwazi olutsha olusembindini olubonelelwe ngofakelo idibanisa nombono wecala lendalo, evula umnyango wokudibanisa zombini ukuya imisebenzi yobomi bemihla ngemihla.
Ukhuseleko, iziphumo ezibi kunye nemida yangoku
Njengalo naluphi na utyando lwamehlo, oku kulandelayo kwarekhodwa: kulindelwe iziganeko ezimbi (umzekelo, i-hypertension ye-ocular yexeshana, i-subretinal hemorrhages encinci, okanye i-detachments yendawo). Uninzi oluninzi Yasonjululwa kwiiveki Ngolawulo lwezonyango, zaqwalaselwa zisonjululwe emva kweenyanga ezili-12.
Namhlanje, umbono weprothetic monochrome kunye nesisombululo esilinganiselweyo, ngoko ayithabathel’ indawo umbono wama-20/20. Noko ke, ukukwazi ukufunda iilebhile, iimpawu okanye izihloko imele utshintsho olubonakalayo kukuzimela kunye nokuphila kakuhle kubantu abane-AG.
Ubukho kunye namanyathelo alandelayo
Ngokusekelwe kwiziphumo, umenzi, Iqumrhu lezeNzululwazi, uye wacela ugunyaziso lolawulo eYurophu nase-United States. Amaqela amaninzi-kuquka iStanford kunye nePittsburgh-iyahlola uphuculo olutsha i-hardware kunye ne-algorithms ukomeleza ukubukhali, ukwandisa i-grayscale, kunye nokwenza ngcono ukusebenza kwimiboniso yendalo.
Ngaphandle koqeqesho, isixhobo ayifumaneki okwangoku kwimisebenzi yeklinikhiUkuba ivunyiwe, ukwamkelwa kwayo kulindeleke ukuba kube ngokuthe ngcembe kwaye kugxilwe, ekuqaleni, kwizigulana ezine-geographic atrophy ukuhlangabezana neenqobo zokukhetha kwaye bazimisele ukwenza uqeqesho oluyimfuneko.
Iziphumo ezipapashiweyo zibonisa inkqubela eqinileyo: ngaphezu kwe-80% yezigulane bavavanyiwe bakwazi ukufunda oonobumba kunye namagama besebenzisa umbono ofakelweyo ngaphandle kokuncama umbono weperipheralKusekho indlela ende ekufuneka ihanjwe-ukuphucula isisombululo, intuthuzelo, kunye nokuqondwa kobuso-kodwa umtsi oya phambili owenziwe kukufakelwa kwe-retinal ye-subretinal. iphawula inguquko kwabo baphulukene nokufunda ngenxa ye-AMD.
Ndingumntu othanda itekhnoloji ojike umdla wakhe we "geek" waba ngumsebenzi. Ndichithe ngaphezulu kweminyaka eli-10 yobomi bam ndisebenzisa itekhnoloji yokusika kwaye ndikhenkceza ngazo zonke iintlobo zeenkqubo ngenxa yokufuna ukwazi okumsulwa. Ngoku ndiqeqeshelwe ubugcisa bekhompyutha nakwimidlalo yevidiyo. Oku kungenxa yokuba ngaphezu kweminyaka emi-5 ndibhalela iiwebhusayithi ezahlukeneyo kwitekhnoloji kunye nemidlalo yevidiyo, ndisenza amanqaku afuna ukukunika ulwazi oludingayo ngolwimi oluqondakalayo kuye wonke umntu.
Ukuba unayo nayiphi na imibuzo, ulwazi lwam lusuka kuyo yonke into enxulumene nenkqubo yokusebenza yeWindows kunye ne-Android yeefowuni eziphathwayo. Kwaye ukuzinikela kwam kukuwe, ndihlala ndikulungele ukuchitha imizuzu embalwa kwaye ndikuncede usombulule nayiphi na imibuzo onokuba nayo kweli lizwe le-intanethi.