I-Digital retinal imaging ishesha ukuba yingxenye eyengeziwe yokuhlola ukuhlolwa kwamehlo ngonyaka. Ngesikhathi esilandelayo lapho ungena ehhovisi lakho le-optometrist ukuze uhlole ukuhlolwa kombono wakho, kungenzeka ukuthi uzonikezwa ifomu ukuze ukhethe u-yebo, noma cha, ukuthi uvumelane ukuba novivinyo olwengeziwe odokotela abaningi bezilanga manje abenza njengenqubekela phambili ephelele ukuhlolwa kweso .
Kwenzenjani?
Ngokufika kwezithombe zedijithali, imboni yokukhathalela iso manje ikhiqiza amakhamera we-digital retinal eyenza ukubuka okumangalisayo ngaphakathi kweso. I-digital imaging retinal, i-DRI ngesikhashana, isenzo sokuthatha isithombe se-digital esingaphakathi kweso kuhlanganise i- retina , i-optic nererve, i-macula nemithambo yegazi. Lesi sithombe sisetshenziselwa ukuhlola izifo zeso futhi kungasetshenziswa ukuqhathanisa nezithombe ezithathwe ekuhlolweni okuzayo. Uma isimo noma isifo sitholakala, udokotela uzophindaphinda uhlolo ngokuhlolwa okuphezulu kanye nekhwalithi ephezulu, ebizwa ngokuthi i-fundus photography. Ngokuvamile i-digital retinal imaging ivame ukwenza isinqumo esincane sokuhlola injongo futhi isebenza njengokuhlola okuyisisekelo.
Ingabe Kubiza Okungeziwe?
Yebo, izinhlelo zokunakekelwa kombono kanye nezinhlelo zomshuwalense wezempilo azihlanganisi ukuhlola ukuhlola okuvamile. Odokotela abaningi bamehlo bakhokha imali ebizwa ngokuthi yi-$ 15- $ 50. Noma kunjalo, ukuhlolwa kunikeza ulwazi olwengeziwe ukuqinisekisa ukuthi amehlo akho aphilile.
Ukubuka Kwangaphakathi Kuhlola Oluvamile?
Kukhona umehluko emkhatsini wokuhlolwa kokuhlola ukubuka umbono kanye nokuhlolwa okuphelele kwezokwelapha. Izivivinyo eziningi zifaka ingxenye yocwaningo lapho ukuxuba amaconsi kufakwa khona. Lokhu kubangela umfundi ukuba akhulise ngakho udokotela angabheka iso lakho.
Kodwa-ke, kunzima ukubona lonke i-retina futhi ngezinye izikhathi, ngenxa yabafundi abancane noma ukubambisana kwesiguli, kunzima ukuthi i-optometrist noma i-ophthalmologist ukubona ngeso lengqondo konke okudingeka akubone. I-imaging ye-Retinal imaging inikeza indlela ehlukile yokubukela i-retina ukuthi ngezinye izikhathi inikeza udokotela izinkomba mayelana nezimo ezithile zeso. Ezinye zalezi zinguquko ezicashile zingabonwa kangcono ngombono we-digital retinal. Kuye ngohlobo lensimbi elisetshenzisiwe, ukucabangela kwe-digital retinal kunikeza umbono ongcono we-periphery ye-retinal.
Kuthiwani Nge-Dilation Ye-Eye?
Ingabe lokhu kuhlolwa kusho ukuthi akudingeki ukuba amehlo ami agxilwe, ungacela. Cha. Ukubukeka ngeso lengqondo kubalulekile. Noma kunjalo, ukusebenzisa i-digital retinal imaging inikeza izinhlobo ezahlukene zolwazi. Ukuhlanganisa kokubili kuvumela udokotela wezilanga ukuba enze ukuhlolwa kwezempilo okungcono.
Izinsiza ezisetshenziselwa ukwenza i-DRI
Kunemikhakha emithathu yemishini eyahlukene engenza isithombe se-digital retinal. Ngamunye uhlinzeka umbono oyingqayizivele ngaphakathi kweso futhi ngamunye usebenzisa inqubo ehlukile ukuthola izithombe. Kunezinzuzo nezinkinga kuzo zonke izindlela ezintathu.
- I-Fundus Cameras - I-Digital fundus kamera iyatholakala ngabakhiqizi abaningana. Baveza umbono we-45-degree we-retina. Nakuba insimu yokubuka i-45 degrees kuphela, amakhamera we-fundus anikezela ngezithombe eziphakeme kakhulu zokuxazululwa.
- I-Optos UWF (i-Ultra-wide imaging field) - I- Optos isebenzisa isicuko esikhethekile se-brevet esivumela isithombe esingaba ngu-200-degree se-retina ukuba sibonwe ngaphandle kokusebenzisa nanoma yimaphi amaconsi e-iso ekhethekile. Izingoma ze-Optos UWF zithandwa kakhulu phakathi odokotela bamaziso. Yize ngokuyiqiniso ukuthi ayithathi indawo yokuhlenga iso ngesikhathi sokuhlolwa, odokotela abathile banomuzwa wokuthi kusebenza kahle ngaphandle kokuphazamiseka kokunciphisa amaconsi.
- I-Eidon yase- Centervue e-Eidon isebenzisa umbala weqiniso we-confocal scanner. Kungathatha isithombe sama-degree angu-60 ngokuchayeka okulodwa kodwa kunganikeza umbono obanzi kakhulu ngokusebenza okungeziwe, ukuhlanganisa izithombe eziyisikhombisa ezihlukene zombono we-110 degree. I-Optos inikeza insimu ebanzi yombukiso, kodwa insimbi ye-Eidon inikeza isixazululo esingcono nombala.