CVI is a deficiency in the function of vision due to damage to or malfunction of visual pathways and visual centers in the brain, specifically those posterior to lateral geniculate body, which may be accentuated by associated disorders of the control of eye movements. CVI ranges from profound visual impairment to normal/near normal visual acuity but significant difficulties with using that vision.CVI has recently become the most common cause of visual impairment in children in developed countries. This may be due to improving survival of extremely premature babies who have sustained severe neurological damage during perinatal period. In our country also studies show that in children under 3yrs of age, CVI is the most common cause of profound visual loss. But our postgraduate programs do not equip us to take care of such children. So in this instruction course, we would like to discuss how to diagnose CVI, early intervention and management of such cases .