Submitted by wollson on Fri, 02/01/2019 - 10:38

A very new platform in visual function testing came up!    

Only a few seconds testing, out-patient, without anaesthesia!    


This is a new adoption of electrophysiology for ophthalmology use, that differs from the old and robust ways of testing, and has new name: LIGHT INDUCED VISUAL RESPONSE (LIV).

ELECTRORETINOGRAPHY (ERG) and VISUAL EVOKED POTENTIAL (VEP) in eye practice now is objective testing of the eye function, in children and adults.

Like EKG testing, it gives OBJECTIVE information about THE FUNCTION of retina and visual pathway by measuring the electrical responses of retinal cells upon the stimulation by light source. Various stimuli are used to target different cells within the visual pathway to gain objective information about their function. We use VEP (visual evoked potential) and ERG (electroretinography), in several modalities and type of stimulation, depending on what we are testing for (pERG, ffERG, mfERG).






Retinal function in a variety of diseases:

– Optic neuritis
– CRVO (central retinal vein occlusion)
– Diabetic retinopathy
– Uveitis
– Amblyopia
– Toxic retinopathy
– Maculopathy (Macular degeneration, myopia, ERMA, cistoid, oedematous,.. )
– The retinal function could be tested as well in opaque media (cataract or haemorrhage in the eye), when is not possible to see the posterior pole in standard way.

Easy to use in adults and in children, while seated comfortably and looking into flashing screen without stress and irritation of the eye. Only a few seconds testing, out-patient, without anaesthesia!