Shaking eyes (Nystagmus) is the involuntary movement of the eyes. It can be congenital or appear during infancy or later. Nystagmus has no single cause. It can have many different causes. And it can develop without affecting vision. It can be noticed through shaking of the head during infancy. In this case, nystagmus often either improves or disappears entirely towards primary school age. However, shaking eyes can develop due to poor vision or neurological factors as well. Differential diagnosis is very important in patients with nystagmus since the disease is associated with many causes and treatment options which vary accordingly. Treatments for these patients include eyeglasses, telescopic spectacles, eye drops, medication and surgery when required.