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Talk:Low Vision Rehabilitation/Zach Davis

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Answers to the nystagmus questions:

  • What type of nystagmus do parents most often notice in their children?

horizizontal pendular nystagmus

  • List 3 things that could increase the amplitude of nystagmus?

Stress, emotions & direction of gaze

  • What is the effect of increased amplitude?

Decreased vision. Describe the symptoms of nystagmus. Delay in visual maturation Poor/delayed fixation Eyes physically wiggling Head tilting Head oscillation

  • Examination of a patient with nystagmus involves which tests?

History –asking family the information Physical exam – behaviour of the child, ophthalmic exam Electrophysiological testing of retina & eye movements

  • How to locate the null point?

To locate the null point, hold a pen or small bright object in front of the eyes. Ask the student to hold his/her head still, and follow the object as it is moved from side to side, and up and down. Watch for any increase or decrease in the nystagmus.

  • Make a note of the class room modifications following the location of a the null point so that you can inform a child’s parents, teacher or visiting teacher.

See http://www.svrc.vic.edu.au/AVnystagmus.shtml

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