March 15, 2022
A common misconception about binocular vision disorders is that more symptomatic patients tend to exhibit larger phorias. Evidence actually suggests that the magnitude of clinical signs does not correlate with the severity of the symptomology.
A patient with 1PD exophoria and a patient with 10PD exophoria might experience a similar magnitude of eye strain. Furthermore, prescribing precise, appropriate amounts of prism—particularly contoured prism does not lead to high degrees of prism adaptation over time, contrary to common misconceptions.
But prescribing fractional, precise amounts of prism is a challenge. Subjective and nonrepeatable clinical diagnostic tools limit our ability to accurately detect small eye phorias.
In a webinar presented by Review of Optometric Business, and sponsored by neurolens, Amanda Nanasy, OD, shares the secrets to successfully prescribing prism, and the benefits it can bring to your patients and practice.