A model of the mechanics of binocular alignment.

A computer model (SQUINT) of the static mechanics of human eyes is developed and applied to the diagnosis and treatment of defects of binocular alignment (strabismus). Brief discussions of ocular anatomy, binocular vision, strabismus and its surgical correction, and early strabismus modeling are provided for nonspecialists in these areas. Models of muscle force, muscle path, globe translation, and binocularity are developed. To illustrate the use of the model in clinical cases, it is applied to the diagnosis and surgical treatment of a case of superior oblique palsy. The model's implementation under the UNIX operating system is described.

[1]  Ken Nakayama,et al.  Coordination of extraocular muscles , 1975 .

[2]  D. Robinson,et al.  Mechanical components of human eye movements. , 1969, Journal of applied physiology.

[3]  Paul Boeder,et al.  CO-OPERATIVE ACTION OF EXTRA-OCULAR MUSCLES* , 1962, The British journal of ophthalmology.

[4]  Brian W. Kernighan,et al.  The C Programming Language , 1978 .

[5]  Krewson We,et al.  The Action of the Extraocular Muscles: A Method of Vector-Analysis with Computations. , 1950 .

[6]  C S Sherrington,et al.  Experimental Note on Two Movements of the Eye , 1894, The Journal of physiology.

[7]  B. Richmond,et al.  Implantation of magnetic search coils for measurement of eye position: An improved method , 1980, Vision Research.

[8]  J. W. Henderson,et al.  Orbitonometry in unilateral exophthalmos. , 1958, American journal of ophthalmology.

[9]  Hiroshi Akima,et al.  A Method of Bivariate Interpolation and Smooth Surface Fitting for Irregularly Distributed Data Points , 1978, TOMS.

[10]  W R Green,et al.  Bilateral Duane's retraction syndrome. A clinical-pathologic case report. , 1980, Archives of ophthalmology.

[11]  D. Burbank,et al.  Clinical applications of a computer-assisted eye model. , 1979, Ophthalmology.

[12]  C. Collins,et al.  ELEMENTS OF THE PERIPHERAL OCULOMOTOR APPARATUS* , 1969, American journal of optometry and archives of American Academy of Optometry.

[13]  G. K. Noorden,et al.  Binocular vision and ocular motility;: Theory and management of strabismus , 1974 .

[14]  C C Collins,et al.  Extraocular muscle forces in normal human subjects. , 1981, Investigative ophthalmology & visual science.

[15]  D. Robinson A quantitative analysis of extraocular muscle cooperation and squint. , 1975, Investigative ophthalmology.