This article on Epainassist.com has been brush up by a medical professional , as well as checked for facts , to check the lector the best potential truth .
We follow a strict editorial policy and we have a zero - tolerance insurance policy regarding any layer of piracy . Our article are resourced from reputable on-line varlet . This article may turn back scientific references . The numbers in the parentheses ( 1 , 2 , 3 ) are clickable links to equal - go over scientific papers .
The feedback link “ Was this clause Helpful ” on this Sir Frederick Handley Page can be used to account content that is not precise , up - to - particular date or questionable in any manner .
This article does not provide aesculapian advice .
What is Electroretinography?
Aneye testthat detects the function of the wakeful notice portion of the centre i.e. the retina is do it as an electroretinography . It is also known as electroretinogram . The test bring out any subclinical retinopathy.(1 )
The retina is composed of specialized cells be intimate as rods and cones that find idle and ganglion cells that convey images to the brain .
Electroretinography picks up signals from the photoreceptors and other cells i.e. the mediator between the ganglion cells and the photoreceptors . This trial is done to detect :
How is Electroretinography Test Performed?
The patient is expect to lie down or sit in a well-off perspective . heart drop are put in the eye to expatiate them . An anesthetic center drop is then put to make it benumbed .
A retractor is used to accommodate get to the eye . This helps to carefully place a small electrode on each middle . Electrode either resembling acontact lensor a fine thread is placed in the eye . An extra electrode is placed in the frontal bone peel .
The affected role is then asked to watch a flashlight . The trial is conducted in normal twinkle and then in a darken way . The electrode help in measuring the retina ’s electric response to light .
The responses recorded in the lightened way are from the cones in the retina and those in a darkened room are from the perch cell in the retina .
The information is then remove to the monitor , where it is displayed and recorded .
What Does The Electroretinography Test Result Mean?
A normal resolution shows the wave patterns of a normal optic in reaction to each flashbulb of light .
The abnormal outcome may point the following condition :
Risks Associated With Electroretinography Test
There are no major risks associated with electroretinography . Slight discomfort is feel when the electrodes are put in the eye . It feels as if an cilium has lodged in the eye .
After the test is completed , there is slight irritation felt in the optic .
Some people suffer from corneal abrasions after the test . If detected betimes it can be handle easy .
It is crucial to keep an eye on the aftercare instruction given by the doctor . If any eccentric of discomfort continues , bring it to the notice of the MD who has performed the procedure .
The eye may find a bit sensitive after the test . Therefore , avoid rubbing them , as it may lead to corneal legal injury .
In the case of retinal separation , trauma , or any disorder , you may need surgery . Any other retinal condition is process with medicine .
