Electroretinography

Electroretinography bvunzo yekuyera mhinduro yemagetsi yemasero eziso anonzwisisa mwenje, anonzi matanda nemakoni. Aya maseru chikamu chetina (chikamu chekumashure cheziso).

Paunenge uri munzvimbo yekugara, mutapi wezvehutano anoisa madonhwe anovenga maziso mumaziso ako, saka hauzombove nekusagadzikana mukati memuedzo. Maziso ako akasvinudzwa nekamudziyo kanonzi speculum. Inzwa yemagetsi (electrode) inoiswa paziso rega rega.

Iyo electrode inoyera chiitiko chemagetsi cheiyo retina mukupindura kuchiedza. Chiedza chinopenya, uye mhinduro yemagetsi inofamba ichibva pa electrode ichienda kuTV-senge skrini, uko inogona kutariswa uye kurekodhwa. Iyo yakajairika mhinduro maitiro ine mafungu anonzi A uye B.

Iye mupi anotora kuverenga mune yakajairwa mwenje mwenje uyezve murima, mushure mekutendera maminetsi makumi maviri kuti maziso ako agadzirise.

Hapana gadziriro yakasarudzika inodikanwa bvunzo iyi.

Ma probes anogara paziso rako anogona kunzwa kutsemuka zvishoma. Muedzo unotora inenge 1 awa kuti uite.

Iyi bvunzo inoitwa kuti uone kusagadzikana kweretina. Izvo zvinobatsirawo kuona kana kuvhiyiwa kweziso kunokurudzirwa.

Zvakajairwa bvunzo mhedzisiro inoratidza yakajairwa A uye B pateni mukupindura kune yega yega flash.

Aya anotevera mamiriro anogona kukonzera zvisina kujairika mhedzisiro:

• Arteriosclerosis ine kukuvara kune iyo retina
• Kuberekwa kweusiku hupofu
• Congenital retinoschisis (kutsemuka kwemashure eretina)
• Giant cell arteritis
• Mishonga (chloroquine, hydroxychloroquine)
• Mucopolysaccharidosis
• Retinal boka
• Tsvimbo-koni dystrophy (retinitis pigmentosa)
• Kushungurudzika
• Vitamin A kushomeka

Iyo cornea inogona kuwana kwechinguva kukwenya pamusoro pechiso kubva kune iyo electrode. Zvikasadaro, hapana njodzi neiyi nzira.

Iwe haufanirwe kukwiza maziso ako kweawa imwe mushure mekuyedzwa, nekuti izvi zvinogona kukuvadza iyo cornea. Wako mupi achataura newe nezve mhedzisiro yemuyedzo uye zvavanoreva kwauri.

ERG; Electrophysiologic kuyedza

• Bata lens electrode paziso

Baloh RW, Jen JC. Neuro-ophthalmology. Mune: Goldman L, Schafer AI, eds. Goldman-Cecil Mushonga. 26th ed. Philadelphia, PA: Elsevier; 2020: chitsiko 396.

Miyake Y, Shinoda K. Clinical electrophysiology. Mu: Schachat AP, Sadda SVR, Hinton DR, Wilkinson CP, Wiedemann P, eds. Retina yaRyan. 6th ed. Philadelphia, PA: Elsevier; 2018: chits.

Reichel E, Klein K.Retinal electrophysiology. Mune: Yanoff M, Duker JS, eds. Ophthalmology. 5 ed. Philadelphia, PA: Elsevier; 2019: chitsiko 6.9.