Imaging correlates of neural control of ocular movements. Eur Radiol 2016 Jul;26(7):2193-205
Date
09/24/2015Pubmed ID
26396109DOI
10.1007/s00330-015-4004-9Scopus ID
2-s2.0-84944601973 (requires institutional sign-in at Scopus site) 14 CitationsAbstract
The purpose of oculomotor movements is maintenance of clear images on the retina. Beyond this oversimplification, it requires several different types of ocular movements and reflexes to focus objects of interest to the fovea-the only portion of retina capable of sharp and clear vision. The different movements and reflexes that execute this task are the saccades, smooth pursuit movements, fixation, accommodation, and the optokinetic and vestibulo-ocular reflexes. Many different centres in the cerebrum, cerebellum, brainstem and thalami, control these movements via different pathways. At the outset, these mechanisms appear dauntingly complex to a radiologist. However, only a little effort could make it possible to understand these neural controls and empower the reading session. The following review on ocular movements and their neural control will enable radiologists and clinicians to correlate lesions with clinical deficits effectively without being swamped by exhaustive detail. Key Points • Knowledge of cortical and subcortical areas controlling ocular movements is important. • Understanding of neural control of ocular movements makes a good foundation. • Awareness of anatomic areas controlling ocular movements helps in clinico-radiologic correlation.
Author List
Agarwal M, Ulmer JL, Chandra T, Klein AP, Mark LP, Mohan SAuthors
Mohit Agarwal MD Associate Professor in the Radiology department at Medical College of WisconsinAndrew P. Klein MD Chief, Associate Professor in the Radiology department at Medical College of Wisconsin
MESH terms used to index this publication - Major topics in bold
Brain MappingBrain Stem
Cerebellum
Eye Movements
Humans
Pursuit, Smooth
Reflex, Vestibulo-Ocular
Saccades
