Abstract
Prism fixation disparity curves have been classified into five types: sigmoid with flat centre, sigmoid, flat, above abscissa, below abscissa. On casuistical and theoretical grounds these curves were considered characteristic for five clinical situations: Normality, convergence defect, fusion defect, esophoria, exophoria, respectively. In a survey of 461 curves from patients with asthenopia and oculomotor imbalance the presumed relation between orthoptic data and type of curve was confirmed.
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References
Crone, R.A. Heterophorie. Albrecht v. Graefes Arch. klin. exp. Ophthal. 177: 52–74 (1969).
Crone, R.A. & Sanjoto Hardjowijoto. What is normal binocular vision? Docum. Ophthal. 47:163–199(1979).
Crone, R.A. Asthenopia in small angle heterophoria in Strabismus 1969, Transactions C.E.S.S.D., Henry Kimpton, London (1970).
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© 1982 Dr W. Junk Publishers, The Hague
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Crone, R.A., Noordenbos, A.M. (1982). 461 Curves of Horizontal Prism Fixation Disparity in an Orthoptic Department. In: van Balen, A.T.M., Houtman, W.A. (eds) Strabismus Symposium Amsterdam, September 3–4, 1981. Documenta Ophthalmologica Proceedings Series, vol 32. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7997-0_6
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DOI: https://doi.org/10.1007/978-94-009-7997-0_6
Publisher Name: Springer, Dordrecht
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