Abstract
The BIOJ is the official journal of the British and Irish Orthoptic Society. The BIOS was founded in 1937. BIOS is a professional and educational body for the UK and Republic of Ireland representing orthoptists. Orthoptics is a world-wide profession, and the BIOS is recognised as being a leader in both education and clinical practice. The BIOJ invites submissions relating to original research, review articles, case reports and scientific letters to the editor in areas related to clinical ocular motility, visual function, amblyopia, binocular vision and strabismus. The journal will accept submissions from a wide variety of disciplines, including orthoptists, optometrists, ophthalmologists, and vision technicians, among others.
Highlights
The basic concept underlying binocular control is retinal correspondence
This study aimed to investigate whether or not horizontal fusional amplitudes are compromised when a subject is controlling a slight vertical heterophoria, induced by a prism
A Friedman test was performed across the three sets of data and showed that the vertical prism size did have a statistically significant effect on the prism fusion range (d.f. = 2, p < 0.0001)
Summary
The basic concept underlying binocular control is retinal correspondence. Corresponding retinal points have the same visual direction in the presence of binocular single vision. If non-corresponding retinal points are stimulated simultaneously, a disparity is said to exist. In the presence of binocular single vision, the normal response to disparity is fusion, provided the disparity is not too large that it becomes un-fusible. Fusional responses to retinal disparity consist of two parts. The first is a motor component: a vergence eye movement
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