A manifest ( heterotropia ) deviation is where the eye deviates constantly or intermittently.
2.
Adult and child observers perceived a right heterotropia as more disturbing than a left heterotropia, and child observers perceived an esotropia as " worse " than an exotropia.
3.
Adult and child observers perceived a right heterotropia as more disturbing than a left heterotropia, and child observers perceived an esotropia as " worse " than an exotropia.
4.
The method consists in a measurement of an alleged angular misalignment ( referred to as " associated phoria " or " hidden strabismus ", also called " " " " in German language ) that is different from heterotropia or heterophoria, and involves the use of prisms for its correction.