Zonular cataract and nystagmus

Overview

Cataracts that affect only certain layers of the lens.

Symptoms

The list of signs and symptoms mentioned in various sources for Zonular cataract and nystagmus includes the 10 symptoms listed below:

  • Opaque lens 
  • Leukocoria 
  • Strabismus 
  • Nystagmus  
  • White pupil reflex
  • Blurred vision 
  • Reading difficulty 
  • Night driving difficulty 
  • Falls 
  • Accidents 

Diagnosis

The basic diagnostic workup includes

  • visual acuity
  • visual fields 
  • audiogram
  • caloric testing
  •  x-rays of the skull, mastoids, and petrous bones


If these are negative or indefinite, a CT scan or MRI of the brain will be necessary. A spinal fluid analysis will help diagnose central nervous system lues and multiple sclerosis. A BSEP or VEP study may be needed to diagnose multiple sclerosis. The help of a neurologic specialist should be sought before ordering expensive diagnostic tests. Cisternography, tomography, and vertebral basilar angiography are occasionally necessary to establish the diagnosis. Magnetic resonance angiography is an excellent noninvasive means of visualizing the vertebral-basilar circulation.

Resources

See Research Publications