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Study shows chronic symptom surveys can predict acute symptoms
The Convergence Insufficiency Symptom and Conlon surveys, typically used to establish chronic visual discomfort ratings, were shown to reliably predict acute symptoms induced during a binocular exam, according to a recently published study.
Drew and colleagues administered the two surveys to 40 participants to assess chronic visual discomfort symptoms. The patients were also questioned regarding comfort level, visual distortions or movement, discomfort caused by overhead lights and headache before and after a binocular exam.
The surveys were shown to predict acute symptoms 75% of the time, while headache, soreness and eye-related questions were more reliable predictors of outcome, according to the study.
The study authors concluded that the two surveys were “good predictors of acute symptoms induced during a binocular examination” and that they “validate the use of chronic symptom surveys as screening tools for symptomatic binocular dysfunction.”