What is nystagmus?
Nystagmus refers to the abrupt, involuntary and rhythmic movements of the eyes, encompassing a forth and a back phase. These movements can be horizontal, vertical or rotary. Nystagmus normally involves both eyes, and it exacerbates by looking at a specific side.The ophthalmologists of Tehran-Iran Noor Eye Hospital can decrease the amplitude of nystagmus with advanced ophthalmic procedures and equipment.
Common types of nystagmus
Nystagmus can be divided into sensory and motor types. Motor nystagmus appears to begin between six weeks and three months of age. Other members of the family may also suffer from similar abnormal eye movements, which are usually horizontal.
Closely looking at objects or looking in odd directions often reduces the nystagmus intensity and improves the vision. Fortunately, patients do not see the world moving as their eyes move. Vision may be reduced with a distance, although it is almost normal up close. Patients with motor nystagmus normally do not suffer any types of potential learning limitations.
The other type of this eye disorder, " sensory nystagmus", is associated with reduced vision of any cause. Sensory nystagmus usually begins at 6-8 weeks of age. The eyes appear to move, sometimes quickly and sometimes slowly. The eyes often rotate upward, followed with the potential eyelid movements. The cause of the reduced vision may be treated, as in babies born with cataracts. Other conditions causing sensory nystagmus may not be treatable, including eye diseases that affect the optic nerve or the retina. Nevertheless, identifying the underlying cause is crucial for predicting the baby's future visual status.