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Strabismus (Squint) This term refers to disorders in which the optic axes are not parallel. The diagrams illustrate positions of the patient’s eyes as they appear to the observer. The unbroken circles connected by the unbroken lines show pairs in the primary position with the normal or fixing eye represented in heavier lines. Pairs with broken lines are in secondary positions with the heavier lines for the fixing eye. A. Comitant strabismus: the squint angle between the two optic axes is constant in all positions regardless of which eye fixates. B. Right lateral rectus paralysis: the right eye is unable to move laterally. C. Right medial rectus paralysis: right eye is lateral in the primary position; it fails to move medially. D. Right superior rectus paralysis: the right eye is slightly depressed in primary position and fails to move farther upward. E. Right inferior rectus paralysis: the right eye is elevated slightly in primary Source: The Nervous System, DeGowin’s Diagnostic Examination, 10e position; it cannot move downward. Citation: LeBlond RF, Brown DD, Suneja M, Szot JF. DeGowin’s Diagnostic Examination, 10e; 2015 Available at: http://mhmedical.com/ Accessed: May 11, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved