Good-Lite Bishop Alignment Prism Set
Bishop Alignment Prism Set
Bishop Dual Prism Alignment System a new tool developed to provide advantages in measuring large angle strabismus prior to correction. In strabismus one eye looks directly at the object being viewed while the other eye is misaligned inward (esotropia) outward (exotropia) upward (hypertropia) or downward (hypotropia). When the misalignment of the eyes is large the strabismus is called "large-angle" referring to the angle of deviation between the line of sight of the straight eye and that of the misaligned eye. Accurately measuring the degree of strabismus using prisms is critically important when preparing for strabismus correction.