Dowley D
Department of Ophthalmic Optics, University of Manchester Institute of Science and Technology, U.K.
Ophthalmic Physiol Opt. 1987;7(2):169-74. doi: 10.1111/j.1475-1313.1987.tb01016.x.
The distribution of heterophoria within the general population is significantly non-normal and a high incidence of approximate orthophoria is observed. This observation has been named the orthophorization of heterophoria. It has been suggested that prism adaptation is the mechanism underlying orthophorization. A prolonged occlusion experiment has been used to investigate this possibility and further supports this theory.