This should not be taken as a sign of poor reading ability, but students or school children with nystagmus may need extra time when they are sitting exams. Computers are used by many people with nystagmus, as they can position screens to suit their own needs and adjust brightness, character size, and so on. However, some people find it difficult to read computer screens for more than a few minutes. Experimenting with colour combinations and using large screens may help. The angle of vision is important.
Most sufferers have a 'null point' where the eye movement is reduced and vision is improved.
They will often turn their head to one side to make the best use of their vision. Sitting to one side of a screen or blackboard often helps. Children with nystagmus should be allowed to adopt the head posture which gives them the best vision. Head nodding sometimes helps concentration, probably because the head movement compensates somewhat for the eye movement. Depth perception is usually considerably reduced.